J Korean Soc Radiol.  2013 Oct;69(4):295-299. 10.3348/jksr.2013.69.4.295.

Sarcomatoid Carcinoma of the Small Intestine: A Case Report and Review of the Literature

• Kang KA
• Yoon JH
• Kang G

• KMID: 2041950
• DOI: http://doi.org/10.3348/jksr.2013.69.4.295

Abstract

Sarcomatoid carcinomas are rare biphasic tumors composed of mixed malignant epithelial and mesenchymal cells. A few cases for small intestinal sarcomatoid carcinoma were reported. Moreover, most of the cases are focused on the pathologic review. We experienced a case of monophasic sarcomatoid carcinoma arising in the jejunum in a 78-year-old man. In this case, CT showed fungating mass with central necrosis in the jejunum. We also reviewed literatures on sarcomatoid carcinoma that arises in the small intestine.

MeSH Terms

Aged
Humans
Intestine, Small
Jejunum
Necrosis

Figure

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  Fig. 1 CT images in a 70-year-old man with abdominal pain. Axial pre-contrast (A) and delayed phase (B) images show a well-defined, round shaped fungating mass (solid arrow) with central necrosis. Coronal reconstruction images on delayed phase CT scan (C, D) show focal wall thickening suggesting tumor seeding (open arrow in C) and beaking appearance (curved arrow in D) with proximal bowel dilatation.

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  Fig. 2 Photograph of the surgical specimen. The gross specimen shows a fungating necrotic mass in the jejunum.

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  Fig. 3 Pathologic findings of the mass [A. H&E (× 100). B. H&E (× 400). C. Cytokeratin (× 200). D. Vimentin (× 200)]. Microscopically, the tumor consisted mostly of discohesive polygonal giant cells with a few spindle cells (A, B). Tumor cells showed focal strong staining for cytokeratin (C) and diffuse strong staining for vimentin (D).

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