The authors report a case of chondrosarcoma in a 14-year-old female patient with multiple osteochondromatosis who has sought medical assistance complaining of a tumor on the left coxa. CT images of the affected limb have demonstrated osteodestructive lesion on the superior third of the left femur. The diagnosis has been made through a review of the biopsy slide from the service of origin of the patient, confirming the finding of a grade I chondrosarcoma in a chondromatous lesion. Disarticulation of the femoral neck was made because of the large extent of the lesion in muscular groups, subcutaneous cellular tissue and skin. The literature shows a wide variation in rates of malignant transformation of exostosis in patients with this disease, and this is a significant complication in patients affected by this disease.

Keywords: Chondrosarcoma, Multiple osteochondromatosis, Computed tomography, Femur

The authors describe two cases of utilization of intraoperative ultrasound as an auxiliary method for surgical resection of pancreatic insulinomas. We emphasize the importance of this procedure, particularly in patients whose tumors could not be well delimited using other preoperative methods, thus avoiding unnecessary ample resections and reducing postoperative complications.

Keywords: Ultrasound, Insulinoma, Pancreas