The case of an alveolar soft tissue sarcoma located at the proximal left thigh of a 32-year-old woman is reported. The tumor had been growing for 5 years. After radiological and complementary studies with CT-scan and MRI, the needle-aspiration biopsy first and then the peroperative biopsy were found to be negative regarding malignancy. The histopathologic analysis of the resected tissue (5x7x 6 cm) revealed a low malignant neoplasia of alveolar pattern formed by cells with a wide vacuolated cytoplasm exhibiting PAS + inclusions. Immunohistochemical studies showed slight positive stain against actin, desmin and S-100 protein. After wide tumor resection, the patient was treated with sistemic chemotherapy and local radiation therapy. One year after surgery, no local recurrence has been detected. Based on this casereport, the diagnostic and therapeutic approach to soft tissue sarcomas is here reviewed.
Remartínez Rivares, José María ; Lázaro Pérez, J. ; Aznar Aznarez, J. Mª ; Lasierra Sanromán, José Manuel ; Seral Iñigo, Fernando. Sarcoma alveolar de partes blandas: aportación de un caso. En: Revista española de cirugía osteoarticular, , : 121-126
