Abstract
A 15-year-old boy presented to us with a 4-month history of fever with worsening dyspnea since 1 month. His contrast-enhanced computed tomography scan of the thorax showed bilateral endobronchial lesions with complete collapse-consolidation of the left lung and partial collapse of the right lower lobe. His fiberoptic bronchoscopy guided biopsy had been reported in outside hospital as a neuroendocrine tumor. Due to worsening breathlessness, he had to be intubated. We repeated the endobronchial biopsy and combined with outside slides and blocks, was diagnosed to have an anaplastic lymphoma kinase-1 positive anaplastic large cell lymphoma (ALCL). We started the patient on chemotherapy to which he had a dramatic response radiologically and clinically. ALCL presenting as endobronchial mass is an extremely rare occurrence and it presenting with bilateral endobronchial masses has not been reported yet in literature. Pathologists and clinicians should be aware of this presentation as prompt diagnosis and treatment give promising results.