Primary site--Heme & Lymphoid Neoplasms: How is the primary site coded for a diagnosis of Langerhans cell histiocytosis with extensive bony metastatic disease and lymphadenopathy? See Discussion.
Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned when an excisional biopsy of a chest wall nodule shows diffuse large B-cell lymphoma (40%) and follicular lymphoma, grade 3A (60%)? See Discussion.
Primary site--Heme & Lymphoid Neoplasms: How is the primary site coded for a diffuse large B-cell lymphoma, immunoblastic variant involving the left maxillary vestibule and entire left maxilla? See Discussion.
Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned if a patient has a history of chronic myelomonocytic leukemia and a 12/08/2011 subsequent biopsy of the left leg that confirms leukemia cutis? See Discussion.