Abstract
Bone marrow involvement in sarcoidosis is rare and poorly understood. This case highlights the hematologic complexity of sarcoidosis, including its association with aplastic anemia and T‐cell large granular lymphocytic leukemia (T‐LGLL). We report a 70‐year‐old male with longstanding sarcoidosis who developed multiple hematologic complications, including bone marrow granulomatous infiltration, aplastic anemia, and T‐LGLL.