Gastric glomus tumor with a preoperative diagnosis by endoscopic ultrasonography-guided fine needle aspiration: a case r
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CASE REPORT
Gastric glomus tumor with a preoperative diagnosis by endoscopic ultrasonography‑guided fine needle aspiration: a case report Hirofumi Hasuda1 · Qingjiang Hu1 · Yu Miyashita1 · Yoko Zaitsu1 · Yasuo Tsuda1 · Yuichi Hisamatsu1 · Yuichiro Nakashima1 · Koji Ando1 · Yasue Kimura1 · Yuichi Yamada2 · Eiji Oki1 · Yoshinao Oda2 · Masaki Mori1 Received: 14 May 2020 / Accepted: 27 August 2020 © The Japan Society of Clinical Oncology 2020
Abstract A gastric glomus tumor (GGT) is a rare gastric submucosal tumor that can become malignant. A preoperative diagnosis would allow for a more informed decision regarding the treatment strategy. We present the case of an asymptomatic man with a GGT that was diagnosed during a preoperative examination. Upper gastrointestinal endoscopy was performed in a 64-yearold man and revealed a submucosal tumor at the lesser curvature of the antrum of the stomach. Endoscopic ultrasonography showed a 12-mm-sized hypoechoic tumor in the second and third layers of the stomach wall. A histologic diagnosis of GGT was made using endoscopic ultrasonography-guided fine needle aspiration (EUS-FNA). Abdominal contrast-enhanced computed tomography was performed, but the identification of the tumor was difficult owing to poor enhancement. The gradual growth of the tumor made it necessary to perform an operation. Laparoscopy and endoscopy cooperative surgery was performed without any complications. The tumor cells were immunohistochemically positive for alpha-smooth muscle actin, h-caldesmon, and collagen type IV but were negative for desmin, discovered on GIST-1, S-100 protein, cluster of differentiation 34, epithelial membrane antigen, and cytokeratin AE1/AE3. The final diagnosis was identical to the preoperative diagnosis made using EUS-FNA. EUS-FNA is a useful method for the preoperative diagnosis of small submucosal tumors, including GGTs. Keywords Gastric glomus tumor · Submucosal tumor · Endoscopic ultrasonography-guided fine needle aspiration · Laparoscopy and endoscopy cooperative surgery
Introduction A glomus tumor is a rare mesenchymal tumor that usually occurs in peripheral soft tissue but in rare instances, it can occur in the stomach as a submucosal tumor (SMT). Statistics show that only 1% of glomus tumors are classified as gastric SMTs [1]. Gastrointestinal bleeding accompanied by hematemesis and epigastric pain is the most common Electronic supplementary material The online version of this article (https://doi.org/10.1007/s13691-020-00444-0) contains supplementary material, which is available to authorized users. * Qingjiang Hu h‑[email protected]‑u.ac.jp 1
Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, 3‑1‑1 Maidashi, Higashi‑ku, Fukuoka 812‑8582, Japan
Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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initial symptom of a gastric glomus tumor (GGT) [2]. Symptoms are likely to occur in cases of GGT when the tumors are large. However, similar symptoms can occu
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