Unilateral Intrathoracic Extramedullary Hematopoiesis: A Rare Case Report

Abstract

Abstract Intrathoracic extramedullary hematopoiesis (ITEMH) is an extremely rare condition characterized by the abnormal proliferation of hematopoietic tissue outside the bone marrow. Here, we present a case of unilateral ITEMH in a 56-year-old male without a history of hematological disorders, which to the best of our knowledge, represents the first reported occurrence of this rare tumor condition. The patient presented with respiratory symptoms and was initially misdiagnosed with a mediastinal mass. Subsequent imaging studies revealed a localized lesion in the left thoracic cavity, which was surgically excised. Histopathological examination confirmed the diagnosis of intrathoracic extramedullary hematopoiesis. This case highlights the importance of considering ITEMH in the differential diagnosis of intrathoracic masses, even in the absence of underlying haematological disorders. Categories: Family/General Practice, Internal Medicine, GEN SURGERY.