ABSTRACT
A 40-year-old male patient presented with enlarging mass over left leg region. Incisional biopsy report revealed an undifferentiated malignant round cell sarcoma, for which above-knee amputation was done. One year later, the same patient presented with left testicular swelling which appeared to be malignant. A left high orchiedectomy was done. Biopsy report showed metastatic round cell tumor, which was confirmed by immunohistochemistry as primitive neuroectodermal tumor. Metastasis to testis is very uncommon.
Subject(s)
Adult , Humans , Leg , Male , Neuroectodermal Tumors, Primitive, Peripheral/pathology , Soft Tissue Neoplasms/pathology , Testicular Neoplasms/pathologyABSTRACT
Aneurysmal bone cyst is a relatively rare tumour accounting 1 to 6% of all primary bone tumours. The involvement of clavicle is even rare with incidence of only 3% of all cases of aneurysmal bone cyst. Aneurysmal bone cyst is an expanding osteolytic lesion occurring mostly at metaphyseal ends of the long bones. Although excisional biopsy is diagnostic for aneurysmal bone cyst and FNAC (fine needle aspiration cytology) is mostly inconclusive. Still FNAC can be helpful in pre-operative diagnosis of aneurysmal bone cyst.