Sarcomatoid renal cell carcinoma in a young adult

Sarcomatoid renal cell carcinoma (SRCC) is an uncommon, aggressive renal cell carcinoma (RCC) accounting for 1.2% to 12.3% of renal cell carcinomas. SRCC may arise from any RCC subtype as it probably results from the de-differentiation of any renal epithelial malignancy. SRCC is characterised by a rapid progression and high metastatic rate. Currently there is no specific effective treatment for it. We report a new case of a 32-year-old man presented with two months backache. Ultrasound revealed a 7.5 cm heterogeneous mass at the inferior pole of the left kidney. A nephrectomy was performed. Histological study diagnosed a sarcomatoid renal cell carcinoma. The patient was doing well 6 months after initial surgery and then was lost to follow-up.

[Adenocarcinoma and gastro-intestinal stromal tumor: fortuitous association or a single carcinogenic agent? A report of 2 cases]

The synchronous development of epithelial and stromal tumors of the digestive tract was rarely reported in the literature. Two such cases are described in this article. One is of a 44-year-old man presenting a high grade gastric stromal tumor associated with an adenocarcinoma of the large bowel. The other is of a 68-year-old man presenting an adenocarcinoma of the head of the pancreas associated with a low grade gastric stromal tumor. The hypothesis that the association is due to a simple coincidence particularly in areas with high rates of digestive cancer is proposed. A possibility of a genetic mutation or a single carcinogenic agent interacting with two tissues in the digestive tract and inducing the development of tumors of different histotype cannot be discarded.

[Mesenchymatous chondrosarcoma of the superior maxillary bone. A case report]

The authors report a new case of mesenchymal chondrosarcoma (MCS), occurring in the upper jaw bone of a 19 year-old woman. Radiographic picture in the bone shows an aggressive osteolytic tumor suspect of malignancy. An incisional biopsy was practiced and the histologic examination has confirmed the diagnosis of MCS. Treatment have consisted of a large resection of maxilla with additional irradiation therapy. The postoperative course was marked by recurrence of the lesion one year later.