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Pneumocystis pneumonia (PCP), also known as Pneumocystis jirovecii pneumonia (PJP), is a form of pneumonia that is caused by the yeast-like fungus Pneumocystis jirovecii. [ 3 ] [ 4 ] Pneumocystis specimens are commonly found in the lungs of healthy people although it is usually not a cause for disease. [ 5 ]
X-ray and CT of ground glass opacities and pneumothorax in pneumocystis pneumonia. Diagnosis of Pneumocystis pneumonia is by identifying the organism from a sample of sputum, fluid from affected lungs or a biopsy. [4] [3] A chest X-ray of affected lungs show widespread shadowing in both lungs, with a "bat-wing" pattern and ground glass appearance.
Specific lung disorders that can cause such patterns are: pneumocystis pneumonia, mucinous bronchioloalveolar carcinoma, pulmonary alveolar proteinosis, sarcoidosis, nonspecific interstitial pneumonia, organizing pneumonia, exogenous lipoid pneumonia, adult respiratory distress syndrome, and pulmonary hemorrhage syndromes. [4]
Pneumocystis pneumonia, an infection typically seen in immunocompromised (e.g. patients with AIDS) or immunosuppressed individuals, is a classic cause of diffuse GGOs. Many viral pneumonias and idiopathic interstitial pneumonias can also lead to a diffuse GGO pattern.
Pneumocystis jirovecii (previously P. carinii) is a yeast-like fungus of the genus Pneumocystis. The causative organism of Pneumocystis pneumonia , it is an important human pathogen , particularly among immunocompromised hosts .
PCP: Pneumocystis carinii pneumonia (now called Pneumocystis pneumonia) primary care physician (also called primary care provider) PCR: patient care report polymerase chain reaction: PCS: post-concussion syndrome: PCT: progesterone challenge test Patient care technician: PCV: packed cell volume (see hematocrit) polycythemia vera: PCWP ...
It can be used to identify the yeast-like fungus Pneumocystis jiroveci, [1] which causes a form of pneumonia called Pneumocystis pneumonia (PCP) or pneumocystosis. The cell walls of these organisms are outlined by the brown to black stain. The principle of GMS is the reduction of silver ions, which renders the fungal cell wall black.
The presence of a pleural effusion argues against pneumocystis pneumonia. Reticular (linear) pattern (sometimes called "reticulonodular" because of the appearance of nodules at the intersection of the lines, even though there are no true nodules present) idiopathic pulmonary fibrosis; connective tissue disease; sarcoidosis; radiation fibrosis ...