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So-called carcinosarcoma of the duodenum with a chondrosarcomatous component
Hiroki Tanaka1, Youichirou Baba2, Shimpei Matsusaki3
1Department of Gastroenterology, Suzuka General Hospital, 1275-53, Yamanohana, Yasuzuka, Suzuka-shi, Mie, Japan. hirokitanaka1983@yahoo.co.jp.
Clinical Journal of Gastroenterology
|August 8, 2015
Summary
This report details a rare duodenal carcinosarcoma, a rare biphasic tumor, in a 79-year-old male. The tumor exhibited both carcinomatous and chondrosarcomatous elements, presenting diagnostic and therapeutic challenges.
Area of Science:
- Gastroenterology
- Surgical Oncology
- Pathology
Background:
- Carcinosarcoma, a rare biphasic tumor, comprises both carcinomatous and sarcomatous elements.
- Duodenal carcinosarcomas are exceptionally rare, posing diagnostic and therapeutic challenges.
Observation:
- A 79-year-old male presented with anorexia, weight loss, and jaundice.
- Preoperative imaging revealed a hypovascular mass in the pancreatic head.
- Biopsy indicated anaplastic carcinoma (spindle cell type), leading to pancreatoduodenectomy.
Findings:
- Histological examination confirmed a duodenal carcinosarcoma with predominant sarcomatous components.
- The tumor exhibited carcinomatous and chondrosarcomatous elements with a transitional zone.
- Immunohistochemistry showed cytokeratin positivity and vimentin negativity in parts of the sarcomatous component.
Implications:
- This case highlights the diagnostic complexity of rare duodenal carcinosarcomas.
- Understanding the biphasic nature and immunohistochemical profile is crucial for accurate diagnosis.
- Further research into the pathogenesis and optimal management of these rare tumors is warranted.
