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. 2015:2015:482342.
doi: 10.1155/2015/482342. Epub 2015 Jun 21.

A Rare Case of a Primary Squamous Cell Carcinoma of the Stomach Presenting as a Submucosal Mass

Affiliations

A Rare Case of a Primary Squamous Cell Carcinoma of the Stomach Presenting as a Submucosal Mass

Wolf von Waagner et al. Case Rep Surg. 2015.

Abstract

We report a case of a 70-year-old man, with a status after aortic valve replacement, who presented with melena and hypotension. On physical examination, he was hypotensive, but he responded to resuscitation. Esophagogastroduodenoscopy revealed a submucosal mass in the gastric fundus. Imaging of the chest, abdomen, and pelvis showed no evidence of local or distant metastasis. He underwent a partial diaphragmatic resection, gastrectomy, lymphadenectomy, and Roux-en-Y esophagojejunostomy. Pathology showed a gastric squamous cell carcinoma (SCC) invading the diaphragm, with negative margins of resection, and one positive perigastric lymph node. He received chemoradiation, but the patient expired 27 months after surgery.

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Figures

Figure 1
Figure 1
Esophagogastroduodenoscopy (EGD) showing an ulcerated submucosal mass in the fundus of the stomach (white arrow).
Figure 2
Figure 2
Computerized axial tomography scan with IV and PO contrast showing a mass in the gastric fundus (red arrow).
Figure 3
Figure 3
(a) Histopathological examination showing a moderately differentiated squamous cell carcinoma with keratinization (×100). Keratin pearl (black arrow). Mosaic cell arrangement with sharp border (red arrow). (b) Tumor invasion of the diaphragm (×100) (red arrow). (c) Lymphovascular invasion is present (×40) (black arrow). (d) Tumor with nerve invasion (×40) (black arrow).
Figure 4
Figure 4
Tumor cells showing strong coexpression of p63 (nuclear stain, brown) and cytokeratin 5/6 (membrane stain, red) (a) and negative expression of p16 (b), CD117 (c), and CK7 (d).

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