Pneumocystis pneumonia

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Pneumocystis pneumonia
Micrograph of Pneumocystis jirovecii in lung tissue
Synonyms	PCP, Pneumocystosis
Pronounce	N/A
Specialty	N/A
Symptoms	Cough, fever, shortness of breath, chest pain
Complications	Respiratory failure, pneumothorax
Onset	Gradual
Duration	Weeks to months
Types	N/A
Causes	Pneumocystis jirovecii
Risks	HIV/AIDS, immunosuppressive therapy, organ transplantation
Diagnosis	Chest X-ray, CT scan, sputum culture, bronchoalveolar lavage
Differential diagnosis	Bacterial pneumonia, tuberculosis, fungal infections
Prevention	Prophylactic antibiotics (e.g., trimethoprim/sulfamethoxazole)
Treatment	Antibiotics (e.g., trimethoprim/sulfamethoxazole, pentamidine)
Medication	Corticosteroids for severe cases
Prognosis	Variable, depends on underlying conditions
Frequency	Common in HIV/AIDS patients
Deaths	Significant if untreated

Pneumocystis pneumonia (also known as PCP) is a form of pneumonia, an inflammatory condition of the lung affecting primarily the microscopic air sacs known as alveoli, that is caused by the yeast-like fungus Pneumocystis jirovecii. CT of bilateral pneumothoraces by pneumocystis pneumonia cysts

Signs and symptoms

The most common symptoms of PCP are cough, fever, and difficulty breathing. Other symptoms can include chills, night sweats, chest pain, and fatigue.

Cause

PCP is caused by the yeast-like fungus Pneumocystis jirovecii. It is not known exactly how this organism is spread, but it is believed to be airborne.

Diagnosis

Diagnosis of PCP can be challenging, as the symptoms are similar to those of other forms of pneumonia. The diagnosis is usually confirmed by identifying Pneumocystis jirovecii in a sample of lung tissue or fluid.

Treatment

Treatment for PCP typically involves a combination of antibiotics and corticosteroids. The specific medications used may vary depending on the severity of the infection and the patient's overall health.

Prognosis

With treatment, most people with PCP can recover. However, the condition can be life-threatening, particularly in those with weakened immune systems.

Prevention

Prevention of PCP involves taking steps to avoid exposure to Pneumocystis jirovecii and to strengthen the immune system.

See also

• Pneumonia
• Pneumocystis jirovecii
• Antibiotics
• Corticosteroids