Pneumocystis pneumonia in a treatment-naive rheumatoid arthritis patient.

A HIV-negative, newly diagnosed patient with rheumatoid arthritis (RA) was found to have pneumonia. The infection was treated with three weeks of atovaquone and corticosteroids. Clinicians should be aware of pneumocystis pneumonia as an infection in RA patients not receiving treatment.

The pattern of secondary cancers in patients with Kaposi sarcoma in the United States.

Purpose: In the U.S., Kaposi sarcoma (KS) occurs mostly in HIV-infected patients, who are also at increased risk of developing secondary cancers.

Dramatic Response of a Metastatic Primary Small-Cell Carcinoma of the Pancreas to a Trial of Immunotherapy with Nivolumab: A Case Report.

Extrapulmonary small-cell neuroendocrine cancers are rare in clinical practice. They are frequently metastatic at the time of diagnosis with survival in months even with the most intensive treatment. So far, treatment recommendations for this group rely on data from the similar but more common small-cell carcinoma of the lungs.