Renal cell carcinoma with rhabdoid and sarcomatoid features presented as a metastatic thigh mass with an unusual immunohistochemical profile.

Renal cell carcinoma (RCC) may metastasize anywhere in the body and sometimes the primary tumor is missing and necessitates extensive investigations to detect. In this report, we describe a case of RCC metastasizing to the thigh in a 70 year old male with a highly pleomorphic morphology suggesting a high grade sarcoma that showed unequivocal positivity for desmin directing the diagnosis for pleomorphic rhabdomyosarcoma. After completion of 33 cycles of radiotherapy, the patient developed large intraabdominal mass that showed conventional areas of RCC with immunoreactivity for CD10, CK, EMA, carbonic anhydrase IX and vimentin.

Facial nerve preservation in total parotidectomy for parotid tumors: a review of 27 cases.

We conducted a study to evaluate the success of facial nerve preservation in 27 adults with a parotid tumor who underwent total parotidectomy. Of this group, 11 patients had a malignant tumor, 10 had a recurrent benign tumor, and 6 had a primary benign tumor. Preoperatively, 7 patients had facial nerve paresis.