Renal oncocytoma: a review of the literature and report of a case associated with rectal carcinoma

A case of twin tumor in a 70-year old female is reported. The patient presented with rectal bleeding for which investigations revealed adenocarcinoma of the rectum. The other tumor was incidentally disclosed and proved to be renal oncocytoma. It is the first time that renal oncocytoma has been reported in Jordan and has never so far been reported in association with rectal adenocarcinoma in the world literature. Review of the literature on oncocytoma is presented. Oncocytoma of the kidney is a rare tumor of tubular origin with a predominantly benign behavior and good prognosis after surgical removal. Contrary to the classical renal cell carcinoma, oncocytoma is characterised by its tan color, central fibrous scarring, large esinophilic granular cells and ultrastructural abundant mitochondria. The tumor is least rare in males past middle age; yet several cases have been reported at a wider age range and in both sexes. The overwhelming majority of renal oncocytomas are solitary tumors, a small minority, however, present as multicentric masses

Peripheral nerve tumor involving maxillary sinuses: a case report and review of the literature

Nerve sheath tumors of the paranasal sinuses are uncommon. Those confined to the maxillary antrum are rare, four only being on world record. We present an additional case with review of the literature. First described by Verocay[1] in 1910 under the term neurinoma, schwannoma [neurolemmoma] has frequently been reported in many anatomical locations wherever Schwann cell wrapping of a nerve occurs. Among other sites the tumor was reported to occur in the thorax[2-3], oral cavity, middle ear and orbit[4], breast[5] and bone of which the most common sites of involvement have been the mandible, scapula and ribs[6-7] though rare sites such as the femur have also been reported. However, up to 45% of schwannomas develop about the head and neck[9]; comprising the highest proportion in an anatomical body location. Yet, the tumor rarely involves paranasal sinuses. In this report we describe a case of solitary schwannoma developed in the left maxillary sinus, an extremely rare site of occurrence according to the English literature. The present case is the first to be reported in Jordan

Cytological diagnosis of breast lesions from needle aspirates

Breast cancer is the commonest malignant tumor among Jordanian women accounting for 22% of total female malignancy[1]. The relatively high percentage of breast cancer seen in Jordanian women younger than 35 years of age [23%] contrasts with similar data reported in other countries[2,3]. This calls on the need for the application of a quick and reliable method of screening and so early detection of breast cancer