A series of two cases of rare tumors: Solitary fibrous tumor of the pleura.

Solitary fibrous tumors of the pleura (SFTPs) are rare neoplasms of mesenchymal origin most commonly arising in the pleura and have a benign biological behavior in the majority of cases. Most patients with SFTPs are asymptomatic; however, symptoms are mostly related to the mass effect within the thoracic cavity. Chest computed tomography (CT) scanning is the radiographic test of choice, but findings lack specificity. Surgical resection is the treatment of choice for most patients. Long-term survival after resection of benign SFTPs is excellent. In this case series, we present two females, one presented with shortness of breath (SOB) and nonproductive cough and the other one was referred because of abnormal x-ray findings. The histological as well as the immunohistochemical examination revealed the mass to be a solitary fibrous tumor of the pleura.

Pneumocystis Jirovecii (carinii) pneumonia causing lung cystic lesions and pneumomediastinum in non-HIV infected patient.

Pneumomediastinum is a rare, potentially life-threatening complication of PCP that occurs in HIV-positive and HIV-negative patients. We are presenting a rare case pneumomediastinum caused by pneumocystis Jirovecii pneumonia in a HIV-negative patient with history of diffuse B-cell lymphoma on R CHOP chemotherapy. What is unique about our case is that the patient developed pneumomediastinum while in the hospital, on atovaquone that improved when switched to clindamycin and primaquine with improvement in her respiratory status. Another interesting point is that diagnosis was entertained due to the characteristic CT scan finding of ground glass opacities with cystic lung lesions and pneumomediastinum in an immunocompromised patient who was started on empirical treatment for PCP. The diagnosis was eventually confirmed with PCP PCR.