We report a case of primary T-cell non-Hodgkin's lymphoma of the lung.
A definite diagnosis was made histologically at open lung biopsy. Aty
pical cells in the biopsy specimen reacted with monoclonal T-cell mark
ers. Transbronchial lung biopsy and bronchoalveolar lavage fluid were
useful in the diagnosis. Primary T-cell lymphoma of the lung is rare a
nd is reviewed in this report.