GAMUT D-81-S4
ROUND CELL LESIONS OF BONE


1. Langerhans cell histiocytosis[G] (esp. eosinophilic granuloma)
2. Ewing sarcoma     
3. Leukemia; lymphoma G; Burkitt's lymphoma
4. Multiple myeloma; plasmacytoma
5. Neuroblastoma
6. Osteomyelitis
*7. Primitive neuroectodermal tumor (PNET)


* Small blue round cell tumor that is identical radiologically with Ewing sarcoma but can often be distinguished histologically, particularly with immunohistochemical studies.