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Kobayashi K, Furukawa K, Ishikawa E, Mitsuma A, Funasaka K, Kakushima N, Furune S, Ito N, Wada H, Hirose T, Muroi K, Suzuki T, Suzuki T, Hida E, Hirai K, Shibata H, Koya T, Nakamura M, Kawashima H, Miyahara R, Fujishiro M. Collision Tumors of Gastric Adenocarcinoma and Mucosa-associated Lymphoid Tissue Lymphoma. Intern Med 2021; 60:2419-2424. [PMID: 34334591 PMCID: PMC8381179 DOI: 10.2169/internalmedicine.6124-20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
A 65-year-old woman with a history of treatment for splenic marginal zone B-cell lymphoma and gastric mucosa-associated lymphoid tissue (MALT) lymphoma underwent esophagogastroduodenoscopy. A reddish elevated lesion was found in the fundus of the stomach. On image-enhanced endoscopy, several findings, such as glandular structures of varying sizes suggesting well-differentiated adenocarcinoma, pruned blood vessels, and dilated blood vessels in deeper mucosa suggesting MALT lymphoma, were observed. The final pathological diagnosis after surgical resection was collision tumors of well-differentiated adenocarcinoma and MALT lymphoma. The features of both tumors could be observed simultaneously with image-enhanced endoscopy.
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Affiliation(s)
| | - Kazuhiro Furukawa
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
| | - Eri Ishikawa
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
| | - Ayako Mitsuma
- Department of Clinical Oncology and Chemotherapy, Nagoya University Hospital, Japan
| | - Kohei Funasaka
- Department of Gastroenterology, Fujita Health University School of Medicine, Japan
| | - Naomi Kakushima
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
| | - Satoshi Furune
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
- Department of Clinical Oncology and Chemotherapy, Nagoya University Hospital, Japan
| | - Nobuhito Ito
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
| | - Hirotaka Wada
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
| | - Takashi Hirose
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
| | - Koichi Muroi
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
| | - Tomohiko Suzuki
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
| | - Takahiro Suzuki
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
| | - Emiko Hida
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
| | - Keiko Hirai
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
| | - Hiroyuki Shibata
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
| | - Toshinari Koya
- Department of Gastroenterology, Tokai Central Hospital, Japan
| | - Masanao Nakamura
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
| | | | - Ryoji Miyahara
- Department of Gastroenterology and Gastroenterological Oncology, Fujita Health University School of Medicine, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
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