Primary pulmonary high grade non-Hodgkin's lymphoma in an elderly patient. A case report.

An 82-year-old non-smoker female was admitted with cough, fever and poor general health. Radiological examination revealed a right parahilar mass and a transbronchial biopsy confirmed the presence of a tumor. Immunohistochemical analysis established the diagnosis of high-grade primary pulmonary lymphoma. The rare nature of this disease, its non-specific clinical presentation and particular prognosis, also in elderly patients, are discussed in this article.