<prompt> Select the false statement about P. jiroveciIt is seen only in immunocompromised individualsAmpicillin is the D.O.CMay be associated with pneumatoceleDiagnosed with sputum microscopy  <response>: 1. P. jiroveci previously known as Pneumocystis carinii causes PCP Pneumocystis pneumonia in - HIV patients with CD4 cells count below 200uL Patients on long-term immunosuppressive regimens Patients with hematologic and non -hematologic malignancies. 2. Laboratory Diagnosis: - Chest radiographs - Diffuse bilateral infiltrates extending from the perihilar region , patchy asymmetric infiltrates and pneumatoceles - Sputum induced by inhalation of a hypeonic saline solution is a useful specimen for microscopic demonstration of the organism. - Gomoris methenamine silver GMS staining is the method of choice to demonstrate the cysts of P. jirovecii. The cysts resemble black colored crushed ping-pong balls, against the green back ground. 3. Cotrimoxazole is the DOC for Pneumocystis pneumonia. 4. Image: The spore cases cysts of pneumocystis stained with the Gomori methenamine silver GMS stain. 