Angiocentric T-cell lymphoma of the lung mimicking metastatic carcinoma. Case report.

Angiocentric T-cell lymphoma is a peripheral T-cell lymphoma (PTCL) which typically involves nose and upper respiratory system mostly presenting as a multisystemic disease. Intrathoracic involvement is common in NHL and the most common manifestation is mediastinal lymphadenopathy. However, malignant lymphomas presenting within the lung are rare and may be either primary or a manifestation of widely disseminated disease. We report a case with multiple pulmonary nodules mimicking metastatic carcinoma of the lung. This type of involvement is not common: when extensive, as in our case, differential diagnosis from metastatic carcinoma is essential.