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The chest x-ray is distinctive with features that appear similar to an extensive pneumonia, with both lungs showing widespread white patches. The white patches may seem to migrate from one area of the lung to another as the disease persists or progresses. Computed tomography (CT) may be used to confirm the diagnosis.
Diffuse alveolar damage (DAD): an acute lung condition with the presence of hyaline membranes. [2] These hyaline membranes are made up of dead cells, surfactant , and proteins. [ 1 ] The hyaline membranes deposit along the walls of the alveoli, where gas exchange typically occurs, thereby making gas exchange difficult.
Immune responses initiated in iBALT are delayed relative to the immune response in the draining lymph nodes, owing to the time it takes to form iBALT. However, in chronic disease iBALT may be a component of the pathology. [4] BALT can be induced even in fetal lungs after chorioamnionitis or intrauterine pneumonia. [2]
Respiratory bronchiolitis is a lung disease associated with tobacco smoking. [1] In pathology, it is defined by the presence of "smoker's macrophages". [1] When manifesting significant clinical symptoms it is referred to as respiratory bronchiolitis interstitial lung disease (RB-ILD). [1]
Pulmonary pathology is the subspecialty of surgical pathology which deals with the diagnosis and characterization of neoplastic and non-neoplastic diseases of the lungs and thoracic pleura. It is the study of diseases affecting the lungs and respiratory system. [ 1 ]
Pulmonary alveolar proteinosis (PAP) is a rare lung disorder characterized by an abnormal accumulation of surfactant-derived lipoprotein compounds within the alveoli of the lung. The accumulated substances interfere with the normal gas exchange and expansion of the lungs, ultimately leading to difficulty breathing and a predisposition to ...
The (US) Armed Forces Institute of Pathology has reported a figure of 10%, [43] and in a study examining over 150,000 lung cancer cases, a figure of 11.8% was given. [5] However, in the latter report the 11.8% figure was based on data that included spindle cell carcinoma , a variant which is generally considered to have a less dismal prognosis ...
The pathophysiology of acute respiratory distress syndrome involves fluid accumulation in the lungs not explained by heart failure (noncardiogenic pulmonary edema). It is typically provoked by an acute injury to the lungs that results in flooding of the lungs' microscopic air sacs responsible for the exchange of gases such as oxygen and carbon dioxide with capillaries in the lungs. [1]