Sarcoma de Ewing de la falange proximal del meñique. Reporte de caso

Ewing's sarcoma occurs in the second decade of life and has a predilection for the diaphysis of long bones and pelvis. There may be rare locations, such as in the metacarpals. A case is reported of Ewing's sarcoma located in the proximal phalanx of the 5th finger of the left hand in a male patient aged 44. Given the infrequency of presentation, it is important to consider the differential diagnosis of other neoplastic diseases of the hand and small cell osteosarcoma. The latter is a rare but aggressive form of osteosarcoma, which is difficult to diagnose and was our first suspicion diagnosed by radiological assessment. However Ewing's sarcoma was characterized with the help of the biopsy and histopathology. Local disease control was achieved by tumoral exeresis with wide margins.