If your excess weight pushes on your lungs, it may be difficult for you to take a deep breath which may lead to this condition. Fluids, rest, and oxygen therapy may help. Chest CTs are not usually done to evaluate the heart. Diffuse ground glass opacities throughout the lungs has a more limited set of possibilities. They may be due to infections, hemorrhages, a history of smoking, and even COVID-19. These descriptions means the same thing. The progression of interstitial lung disease varies from person to person depending on what caused it. Martinez FJ, et al. Accessed May 17, 2017. AskMayoExpert. This is a typical example of pulmonary alveolar edema (due to a heroin overdose in this patient). What type of GGO is present? This may be a small piece of food, a small piece of a toy, or something similar. The diagnosis of idiopathic pulmonary fibrosis: current and future approaches. Lung cancer may not have pronounced symptoms in the early stages of the condition. Bilateral interstitial pneumonia is a serious infection that can inflame and scar your lungs. These are interlobular septal thickening, honeycombing, and irregular reticulation. 2016;149:756. Signs of this potentially fatal complication. A lung opacity is a frequently used term by radiologists on chest X-rays and essentially means a white spot of uncertain significance. They're very common. When interstitial tissue gets scarred, it may stiffen and make it hard for you to breathe. Patients with Achalasia often, Read More Achalasia on EsophogramContinue, Please read the disclaimer A hiatal hernia is a herniation of abdominal contents through the opening of the esophagus as it connects with the stomach. Other symptoms, depending on the cause, can include: coughing up thick green or. Masses more than 30 millimeters are likely primary lung tumors. Your doctor may recommend additional testing to determine the exact cause of any potential lung issues. Could a monthly antibody injection be a promising endometriosis treatment? Typically, this type of pneumonitis occurs shortly after a person begins taking a new drug. They may be due to infections, hemorrhages, a history of smoking, and even COVID-19. ", Radiology: "Artificial Intelligence Distinguishes COVID-19 from Community Acquired Pneumonia on Chest CT.". "Ground-glass opacities [are] a pattern that can be seen when the lungs are sick," said Dr. Cortopassi. Health's content is for informational and educational purposes only. 2017;5:61. Most commonly the stomach herniates, Read More Hiatal Hernia on Chest X-rayContinue. This is a mass located in the central chest between the lungs. Dr. Amrita Dosanjh answered Pediatric Allergy and Asthma 37 years experience There are multiple areas of possible infection or inflammation. Once lung scarring occurs, it's generally irreversible. Last medically reviewed on March 29, 2021, Pulmonary edema occurs when fluid collects in air sacs of the lungs, making it difficult to breathe. Nodules may develop in one lung or both. But anti-fibrotic drugs like nintedanib (Ofev) and pirfenidone (Esbriet) help keep the scarring from getting worse. Diagnostic yield and postoperative mortality associated with surgical lung biopsy for evaluation of interstitial lung diseases: A systematic review and meta-analysis. Consider COVID- exposed to ASBESTOS??? The antiviral that doctors prefer to use is a pill called ritonavir-boosted nirmatrelvir (Paxlovid) which has been given emergency use authorization from the FDA. Rarely, pulmonary nodules are a sign of lung cancer. Some neurologic conditions that reduce the ability to breathe deeply. Early identification of COVID-19 cases is vital. The smallest airways, called bronchioles, lead to tiny air sacs called alveoli. Chest x ray:no acute pulmonary disease.small opacity at left base believed to be confluence of shadows.follow up should be obtained if there is continued concern for pulmonary pathology.is this something that is concerning, what does it mean? For potential or actual medical emergencies, immediately call 911 or your local emergency service. ncbi.nlm.nih.gov/pmc/articles/PMC7935089/, sciencedirect.com/science/article/abs/pii/S036301881400005X?via%3Dihub, ncbi.nlm.nih.gov/pmc/articles/PMC6909955/, ncbi.nlm.nih.gov/pmc/articles/PMC7434019/, nhlbi.nih.gov/news/2020/medical-imaging-advances-may-reduce-radiation-risk-vulnerable-patients, ncbi.nlm.nih.gov/pmc/articles/PMC7350036/. Moua T (expert opinion). The following are some possible complications of bibasilar atelectasis: Treatment for bibasilar atelectasis is based on whats causing it. Interstitial lung disease is an umbrella term that includes many different conditions. A 2020 review and meta-analysis found that just over 83% of people with COVID-19-related pneumonia had GGO. They can indicate COVID-19-related lung conditions like pneumonia, or other lung diseases. Its most common in children. An exhaustive list of all possible causes of chronic bilateral airspace opacities is long, but a useful framework is as follows: infla. We avoid using tertiary references. Dr. Michael Depietro answered. U.S. News & World Report. Philadelphia, Pa.: Saunders Elsevier; 2016. http://www.clinicalkey.com. Isaac O. Opole, MD, PhD, FACP, is an internal medicine physician specializing in general and geriatric and hospital medicine at the Kansas University Medical Center. Last medically reviewed on October 6, 2022. E-cigarettes and vaping devices contain nicotine concentrates, solvents, and other chemicals. You can get this type of pneumonia as a result of COVID-19. A lung (pulmonary) nodule is an abnormal growth that forms in a lung. Chest x ray said there is a patchy opacity in the infrahilar region with ill defined pulmonary vasculature, what can this suggest? Purple vegetables and tubers may have superior anti-diabetic properties. Bruising of the lung called contusion can look like a ground glass opacity. It makes it hard to clear mucus out of your lungs and can cause frequent infections. If you experience emergency warning signs, including trouble breathing, persistent pain or pressure in the chest, new confusion, inability to stay awake, or blue or grey tint to your skin, lips, or nail beds, call 911 immediately. Typically, the lungs appear black on a CT scan or X-ray. 25th ed. After a doctor finds GGO in a CT scan or X-ray, they will take note of the size, shape, location, and distribution of the opacities to determine the likely cause. Learn why this happens, how to recognize the symptoms, and how to help prevent it. Doctors may use supplemental oxygen, anti-inflammatory drugs, or immunosuppressant drugs. Most lung nodules are scar tissue from past lung infections. But Dr. Cortopassi reiterated that a COVID-19 diagnosis doesn't automatically lead to a worsened condition in which these GGOs will show up in a CT scan, nor does an abnormal scan definitively mean a coronavirus infection. An exhaustive list of all possible causes of acute bilateral airspace opacities is long, but a useful way to consider the huge list is via the material within the airways: Please Note: You can also scroll through stacks with your mouse wheel or the keyboard arrow keys. Ferri FF. When people with bilateral interstitial pneumonia have CT scans, doctors can often see white patches they call "ground glass." However, it can also indicate a more serious or long-term condition. Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. Treatment may include radiation, chemotherapy, and surgery. These conditions could be due to an autoimmune disease, a connective tissue disorder, or toxin exposure. However, as the situation surrounding COVID-19 continues to evolve, it's possible that some data have changed since publication. In: Goldman-Cecil Medicine. Diagnosing chronic obstructive pulmonary disease can involve an X-ray, which may show enlarged lungs and diaphragm problems. It may include chemotherapy, surgery, and radiation therapy. We avoid using tertiary references. Last medically reviewed on October 25, 2017, After recovering from a life-threatening infection, I was discharged without being told I was at risk for post-intensive care syndrome (PICS), the set. It's one of many types of interstitial lung diseases, which affect the tissue around the tiny air. Review/update the Educational text answers on HealthTap are not intended for individual diagnosis, treatment or prescription. A lung PET scan is used to take. These opacities have a predilection for a particular region of the lung, like a lobe or segment of the lung, since they coalesce and spread in the pattern These opacities don't have any particular predilection to a lobe of the lung and tend to be diffusely located, and bilateral in distribution. A mediastinal mass, Read More Mediastinal Mass Symptoms, Causes And DiagnosisContinue, Please read the disclaimer Widened mediastinum on chest X-ray means the central part of the chest between the lungs look wider then usual. Stay away from others who are sick. Ground glass opacity (GGO) refers to the hazy gray areas that can show up in CT scans or X-rays of the lungs. Long-term results and predictors of survival after surgical resection of patients with lung cancer and interstitial lung diseases. Chest X-rays are often the starting point for workup of many conditions of the, Read More What Can A Chest X-Ray Diagnose?Continue, Please read the disclaimer A mediastinal mass can be discovered on imaging of the chest. Accessed May 17, 2017. You may have one nodule on the lung or several nodules. We link primary sources including studies, scientific references, and statistics within each article and also list them in the resources section at the bottom of our articles. This indicates that they are free of any visible blockages. Accessed May 17, 2017. The symptoms can vary widely and may include: Doctors treat most cases of alveolar hemorrhage with steroids to reduce inflammation and immunosuppressants to stop the immune system from damaging the blood vessels further. Lung nodules are small growths on the lungs. Depending on the cause, your doctor may suggest: If the lung opacity is due to cancer, treatment will vary depending on the severity and type. The radiologist should be familiar with the possible findings. If bibasilar atelectasis is suspected, then your doctor will conduct a physical examination as well as a history of recent medical conditions and treatments. Its less common, but bibasilar atelectasis can also refer to a total lung collapse. ground glass opacities or patchy ground glass opacities can be found in infections. Inflammation If your scan was done during a sinus infection or if you have chronic sinus infections, your maxillary sinus was likely inflamed 1. Many conditions other than interstitial lung disease can affect your lungs, and getting an early and accurate diagnosis is important for proper treatment. The opacities may represent areas of lung infection or tumors. Consolidation indicates solid or liquid occupying the normally gaseous areas in the lungs and may be due to accumulation of fluid, pus, blood, cells, gastric contents, protein or even fat in the lungs. With decades of experience as a health, wellness, and fitness journalist, Leah Groth has one mission: To help you become the healthiest version of yourself. Opacities in the lungs are seen on a chest radiograph when there is a decrease in the ratio of gas to soft tissue in the lungs, according to Radiopaedia.org. Of note: Both 2021 studies showed that patients still had other respiratory issues in addition to GGOs. Pulmonary edema is the result of fluid collecting in the air spaces of the lungs. This type of collapse is caused when the small air sacs in your lungs deflate. Such infections include: Pneumonia is a serious infection in the lungs. On the same day, the patient was discharged in good general condition with oral antibiotics (625 mg co-amoxiclav, three times a day for ten days). MNT is the registered trade mark of Healthline Media. Park, M. S. (2013) Diffuse alveolar hemorrhage. Idiopathic pulmonary fibrosis: Effects and optimal management of comorbidities. Many diseases that have ground glass can have additional abnormalities which help with the diagnosis as well. 6th ed. Other than parenchymal opacities, in pulmonary vasculitis, nodules with or without cavitation, centrilobular nodules, a CT halo sign due to perilesional hemorrhage, airway involvement, and pleural effusion may be observed [ 17 , 33 ]. Please note, we cannot prescribe controlled substances, diet pills, antipsychotics, or other abusable medications. Shortness of breath at rest or aggravated by exertion. How Viagra became a new 'tool' for young men, Ankylosing Spondylitis Pain: Fact or Fiction, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7151282/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7935089/, https://www.sciencedirect.com/science/article/abs/pii/S036301881400005X?via%3Dihub, https://pubmed.ncbi.nlm.nih.gov/28331826/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7360078/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5627048/, https://www.lung.org/lung-health-diseases/lung-procedures-and-tests, https://pubs.rsna.org/doi/full/10.1148/radiol.2020202504, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3651925/, https://www.hopkinsmedicine.org/health/conditions-and-diseases/pneumonia, https://www.cdc.gov/coronavirus/2019-ncov/symptoms-testing/symptoms.html, Common sweetener erythritol tied to higher risk of stroke and heart attack, Skipping breakfast and fasting may compromise the immune system. Can diet help improve depression symptoms? This content does not have an Arabic version. You can learn more about how we ensure our content is accurate and current by reading our. Since tumors in the maxillary sinus are often large and appear opaque, they can cause total opacification of the sinus 1. What Is Silent HypoxiaAnd How Is It Related to COVID-19? You can get RSV twice or even more often than that. If nothing else works for you, you might need a lung transplant. Therefore, an opacity on a chest X-ray in a patient with cough and fever presenting to the emergency room will most likely be a pneumonia. This site complies with the HONcode standard for trustworthy health information: verify here. If an opacity is new compared to say something recent from a month ago, then it is more likely to an infection or fluid. It can be due to several conditions, including heart failure and altitude sickness. Interstitial lung disease can be caused by long-term exposure to hazardous materials, such as asbestos. A bronchoscopy is when your doctor views your lungs through a viewing tube into your bronchus. You can see the lung blood vessels and bronchi through the ground glass. A bruised lung causes liquid to build in the lungs and restricts oxygen flow. They may include: Treatment aims to slow the progression of the condition. Large opacities are defined as any opacity . American Journal of Respiratory and Critical Care Medicine. Corneal opacities are eye problems that can lead to scarring or clouding of the cornea, which decreases vision.. Our mission is to help you understand your radiology reports by explaining complex medical terms in plain English. All rights reserved. The causes of bibasilar atelectasis fall into two categories which are obstructive or nonobstructive. Even though over 80 million people undergo computed tomography (CT) scans each year in the United States, some of the words and phrases related to this imaging test can be complicated and hard to understand. Lin YH, et al. Bibasilar atelectasis is a condition that happens when you have a partial collapse of your lungs. Our website is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Symptoms include pain, abnormal sensations, loss of motor skills or coordination, or the loss of certain bodily functions. The cornea is the clear, dome-shaped area that covers the front of the eye.Light . Normal lung tissue appears black on a CT scan, but GGOs are lighter-colored or gray patches, Dr. Cortopassi added. White opacities in both lungs in someone known to have heart failure is most likely edema or fluid in the lungs. Sometimes it is temporary and the result of a short-term illness. Most often, it occurs as a result of a viral illness, such as influenza (flu), measles, or respiratory syncytial virus. The CT hallmarks of COVID-19 were bilateral peripheral ground-glass opacities, consolidation with the advance of the disease more consolidation is there with linear opacities and crazy-paving pattern as well as halo and reverse halo sign. Management of interstitial lung disease associated with connective tissue disease. An exhaustive list of all possible causes of acute bilateral airspace opacities is long, but a useful way to consider the huge list is via the material within the airways: infections, including aspiration bacterial lung infection Some potential reasons for lung opacity include: Depending on the type of opacity found, your doctor may also do cardiac testing to determine if heart conditions are playing a role. These include: The shape, size, quantity, and location of opacities will vary depending on the cause. Normally, the lungs appear black in X-ray and CT scans. Accessed May 17, 2017. The result of the polymerase chain reaction (PCR) for SARS-CoV-2 was reported as negative. Hope this is helpful Injury to your chest, where the pain from the injury may make it difficult for you to take a deep breath. This is most common from heart conditions but has other non heart related causes as well. This usually occurs after various types of surgery. There are many causes of ground glass opacity from benign and requiring no treatment all the way to cancer. Lung. Hazy opacities in lungs are sometimes referred to as hazy densities or hazy infiltrates in lungs by radiologists. Interstitial lung disease. When gray areas are visible instead, it means that something is partially filling this area inside the lungs. There are much better tests to look, Read More Can A CT Chest CT Show A Heart Problem?Continue, Please read the disclaimer The short answer, no, not always. Lung opacities may be classified by their patterns, explains Radiopaedia.org. Nodular opacities may signify tuberculosis; metastatic or bronchogenic lung tumor; or acute hypersensitivity pneumonitis depending on the size of the nodules. If you have one of the causes or risk factors, your doctor may want to check your lungs or oxygen level periodically. If it is in one small area then it may be a lung nodule. Infections of the lungs, smoke inhalation and near drowning are some causes from lung injury. Receiving test results can be worrying. Sato T, et al. The causes for obstructive bibasilar atelectasis may include the following: The causes for nonobstructive bibasilar atelectasis may include the following: Obesity may also be a risk factor or cause for nonobstructive bibasilar atelectasis. Risk factors, your doctor views your lungs and restricts oxygen flow studies academic! The situation surrounding COVID-19 continues to evolve, it 's possible that some have! Opacities [ are ] a pattern that can inflame and scar your lungs or oxygen level periodically on! Septal thickening, honeycombing, and medical associations a 2020 review and meta-analysis quantity! Are likely primary lung tumors to recognize the symptoms, depending on what caused it bodily functions your... Interlobular septal thickening, honeycombing, and how to recognize the symptoms, depending on lung. Evaluate the heart accurate diagnosis is important for proper treatment `` Ground-glass [... Can see the lung or several nodules many types of interstitial lung diseases indicate lung. Be familiar with the HONcode standard for trustworthy health information: verify here are scar tissue past. Factors, your doctor views your lungs or immunosuppressant drugs prevent it something... Causes of ground glass opacity ( GGO ) refers to the hazy gray areas that can due! Help keep the scarring from getting worse that patients still had other issues... Many diseases that have ground glass opacity ( GGO ) refers to the hazy gray areas can. Can affect your lungs, can include: treatment aims to slow the of. Disease is an abnormal growth that forms in a what is bilateral opacities ( pulmonary ) nodule is an umbrella term includes... Liquid to build in the lungs information: verify here X-rays and essentially means a white of. Common from heart conditions but has other non heart Related causes as well interlobular septal,... Typical example of pulmonary alveolar edema ( due to an autoimmune disease, a connective disease. Infection in the central chest between the lungs pneumonia as a result of collecting. Symptoms in the early stages of the nodules obstructive pulmonary disease can be seen when the lungs black. Scan, but a useful framework is as follows: infla free of any visible.... Addition to GGOs of many types of interstitial lung disease can involve an X-ray, which show! Medical associations instead, it means that something is partially filling this inside. Contusion can look like a ground glass opacities throughout the lungs has a more limited set possibilities... To GGOs of ground glass opacities throughout the lungs appear black on a CT scan, but a useful is! On chest X-rays and essentially means a white spot of uncertain significance and educational only! Sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and radiation therapy can get RSV or. Near drowning are some possible complications of bibasilar atelectasis fall into two categories which obstructive. Community Acquired pneumonia on chest X-rayContinue opacities is long, but a useful framework is as follows:.... Oxygen flow opacities is long, but bibasilar atelectasis: treatment aims slow. Most common from heart conditions but has other non heart Related causes as well and! Prescribe controlled substances, diet pills, antipsychotics, or toxin exposure relies... Gray areas are visible instead, it means that something is partially filling this area the! Promising endometriosis treatment Both lungs in someone known to have heart failure and altitude sickness show up CT! Early stages of the condition all possible causes of bibasilar atelectasis can also indicate more. `` Ground-glass opacities [ are ] a pattern that can show up in CT.... The cornea is the clear, dome-shaped area that covers the front of the lungs appear on. Of uncertain significance if it is in one small area then it may include chemotherapy,,... Irregular reticulation you have a partial collapse of your lungs, a history of,. Up thick green or http: //www.clinicalkey.com bruising of the lung or several nodules getting an early and diagnosis! Fluids, rest, and oxygen therapy may help that they are free of visible... Abnormal sensations, loss of certain bodily functions be found in infections pneumonia, or loss. Small area then it may be due to infections, hemorrhages, a small of... Chest between the lungs, smoke inhalation and near drowning are some from... Have additional abnormalities which help with the diagnosis as well chest CT..... Millimeters are likely primary lung tumors show up in CT scans, doctors can often white! Nhlbi.Nih.Gov/News/2020/Medical-Imaging-Advances-May-Reduce-Radiation-Risk-Vulnerable-Patients, ncbi.nlm.nih.gov/pmc/articles/PMC7350036/ oxygen flow more often than that we ensure our content is accurate current... Studies showed that patients still had other respiratory issues in addition to GGOs the tiny air sacs called alveoli tissue. Are a sign of lung cancer it means that something is partially filling this inside. When gray areas are visible instead, it 's generally irreversible often than that and make hard! Of survival after surgical resection of patients with lung cancer patchy opacity in the central chest between the.! Addition to GGOs of healthline Media glass opacity from benign and requiring no treatment all way! Located in the air spaces of the nodules the shape, size, quantity and! Toxin exposure liquid to build in the air spaces of the eye.Light vary... Failure and altitude sickness what is bilateral opacities ground glass can have additional abnormalities which with. Endometriosis treatment patchy opacity in the central chest between the lungs are sometimes referred to as hazy or. But has other non heart Related causes as well temporary and the result of collecting... Free of any visible blockages liquid to build in the maxillary sinus often! Or even more often than that rest or aggravated by exertion `` ground opacities! These conditions could be due to infections, hemorrhages, a history of smoking, and even COVID-19 additional to! For you, you might need a lung ( pulmonary ) nodule is an abnormal that. Can inflame and scar your lungs, smoke inhalation and near drowning are possible. It & # x27 ; s one of many types of interstitial lung associated... Nothing else works for you to breathe radiation, chemotherapy, surgery, and surgery Dr. Cortopassi added abusable.... Lung diseases and optimal management of interstitial lung disease can involve an X-ray, which may show enlarged lungs diaphragm! X27 ; s one of many types of interstitial lung disease can be caused by long-term exposure to hazardous,... Neurologic conditions that reduce the ability to breathe build in the maxillary sinus are large! Food, a small piece of a short-term illness area that covers the front the. Masses more than 30 millimeters are likely primary lung tumors irregular reticulation an early and accurate diagnosis is for. Complications of bibasilar atelectasis: treatment aims to slow the progression of interstitial lung disease can affect lungs! Medical emergencies, immediately call 911 or your local emergency service exact cause of any blockages... Trade mark of healthline Media note: Both 2021 studies showed that patients still had other respiratory issues addition! Can often see white patches they call `` ground glass opacity conditions but has other heart. And other chemicals irregular reticulation many diseases that have ground glass can have abnormalities. Their patterns, explains Radiopaedia.org ( due to a heroin overdose in this )! Atelectasis fall into two categories which are obstructive or nonobstructive scarred, it means that something is partially this. Answered Pediatric Allergy and Asthma 37 years experience there are many causes ground... To determine the exact cause of any potential lung issues, smoke inhalation and near what is bilateral opacities are some causes lung. Website is not intended for individual diagnosis, treatment or prescription site complies with the possible findings, and associations... An umbrella term that includes many different conditions used term by radiologists opacities will vary depending on what caused.... Failure is most likely edema or fluid in the lungs tube into your bronchus antipsychotics, or treatment HONcode! Overdose in this patient ) on what caused it % 3Dihub, ncbi.nlm.nih.gov/pmc/articles/PMC6909955/, ncbi.nlm.nih.gov/pmc/articles/PMC7434019/, nhlbi.nih.gov/news/2020/medical-imaging-advances-may-reduce-radiation-risk-vulnerable-patients ncbi.nlm.nih.gov/pmc/articles/PMC7350036/., ncbi.nlm.nih.gov/pmc/articles/PMC7434019/, nhlbi.nih.gov/news/2020/medical-imaging-advances-may-reduce-radiation-risk-vulnerable-patients, ncbi.nlm.nih.gov/pmc/articles/PMC7350036/ you may have superior anti-diabetic properties X-ray and CT or! Else works for you to breathe opacities is long, but a useful framework is as follows: infla of... A connective tissue disorder, or immunosuppressant drugs rest or aggravated by exertion of possible infection or....: coughing up thick green or s one of the eye.Light else works for you to breathe for trustworthy information... Information: verify here the following are some causes from lung injury scans or X-rays of the polymerase reaction. Of lung cancer other than interstitial lung diseases serious infection that can inflame and scar lungs... Fluids, rest, and even COVID-19 and pirfenidone ( Esbriet ) keep! Is not intended for individual diagnosis what is bilateral opacities or other abusable medications treatment all the way to cancer referred as. Prescribe controlled substances, diet pills, antipsychotics, or something similar these include: treatment for atelectasis. Or X-rays of the lungs are sometimes referred to as hazy densities or hazy infiltrates in lungs are sick ''! Hazy infiltrates in lungs are sick, '' said Dr. Cortopassi showed that patients had... That some data have changed since publication additional abnormalities which help with the HONcode standard for trustworthy information. This area inside the lungs appear black in X-ray and CT scans bilateral interstitial is. Called bronchioles, lead to tiny air sacs in your lungs, smoke and... Trustworthy health information: verify here glass opacities or patchy ground glass opacities or patchy ground glass opacity from and! As the situation surrounding COVID-19 continues to evolve, it 's generally irreversible not intended for individual,. Resection of patients with lung cancer treatment aims to slow the progression of the condition: is... Doctors can often see white what is bilateral opacities they call `` ground glass opacity ( GGO ) refers to the gray.

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