Pneumocystosis

Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD medical weight loss NYC and sleep center NYC

Pneumocystosis
Pneumocystis jirovecii in lung tissue
Synonyms	Pneumocystis pneumonia, PCP
Pronounce	N/A
Specialty	Infectious disease, Pulmonology
Symptoms	Cough, fever, shortness of breath, fatigue
Complications	Respiratory failure, pneumothorax
Onset	Gradual
Duration	Weeks to months
Types	N/A
Causes	Pneumocystis jirovecii
Risks	HIV/AIDS, immunosuppression, organ transplantation
Diagnosis	Chest X-ray, CT scan, bronchoalveolar lavage, PCR
Differential diagnosis	Bacterial pneumonia, tuberculosis, fungal infections
Prevention	Prophylactic antibiotics (e.g., trimethoprim/sulfamethoxazole)
Treatment	Antibiotics (e.g., trimethoprim/sulfamethoxazole, pentamidine)
Medication	N/A
Prognosis	Variable, depends on underlying conditions
Frequency	Common in HIV/AIDS patients without prophylaxis
Deaths	N/A

X-ray and CT of ground glass opacities and pneumothorax in pneumocystis pneumonia

Pneumocystosis is a form of pneumonia that is caused by the yeast-like fungus Pneumocystis jirovecii. This condition is most commonly seen in individuals with weakened immune systems, such as those with HIV/AIDS, those undergoing chemotherapy, or organ transplant recipients.

Causes

Pneumocystosis is caused by the fungus Pneumocystis jirovecii. This fungus is common in the environment and does not cause illness in healthy individuals. However, in those with weakened immune systems, the fungus can cause a severe and potentially life-threatening pneumonia.

Symptoms

The symptoms of pneumocystosis can vary, but often include fever, cough, shortness of breath, and weight loss. In severe cases, the condition can lead to respiratory failure and death.

Diagnosis

Diagnosis of pneumocystosis typically involves a combination of clinical symptoms, imaging studies such as a chest X-ray or CT scan, and laboratory tests. The definitive diagnosis is made by identifying the fungus in a sample of lung tissue or respiratory secretions.

Treatment

Treatment for pneumocystosis typically involves antifungal medications, such as trimethoprim-sulfamethoxazole. In severe cases, additional treatments such as corticosteroids may be needed to reduce inflammation in the lungs.

Prevention

Prevention of pneumocystosis involves regular medical care for those with weakened immune systems, including the use of prophylactic antifungal medications in some cases.

See also

• Pneumonia
• Pneumocystis jirovecii
• HIV/AIDS
• Chemotherapy
• Organ transplantation

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