Diffuse Large B-Cell Lymphoma: A Rare Cause of Lung Consolidation.

Diffuse large B-cell lymphoma (DLBCL) is the commonest sub-type of non-Hodgkin lymphoma. However, lung consolidation is a rare presentation of DLBCL. Moreover, in view of poor general condition, it poses clinical dilemma of when to start chemotherapy and whether chemotherapy should be given at full dose or truncated doses till improvement in general condition. A 48-years-old lady was admitted with complaints of non-productive cough for 2 months duration. She was febrile and hypoxemic requiring oxygen supplementation. She had bilateral axillary lymphadenopathy, and bronchial breath sounds on chest auscultation. Chest X-ray showed non-homogenous opacities involving bilateral lower zones. A diagnosis of DLBCL was confirmed on lymph node biopsy and Immunohistochemistry. She received chemotherapy, following which a gradual, improvement in her breathlessness and cough was noted over ensuing week and she got discharged from the hospital and received rest of her chemotherapy on outpatient basis. In a case of DLBCL with lung consolidation, a high index of suspicion can clinch the diagnosis of secondary lymphomatous involvement. Presence of respiratory failure at presentation doesn't necessarily warrants truncation of chemotherapy doses.