Leiomyosarcoma of the stomach treated by endoscopic submucosal dissection
- Resource Type
- Authors
- Masaru Kubokawa; Yuka Hiraki; Kazuya Akahoshi; Kentaro Yodoe; Naru Tomoeda; Hidetaka Yamamoto; Masafumi Oya; Eikichi Ihara; Norikatsu Kinoshita; Takao Sato
- Source
- Clinical journal of gastroenterology. 11(4)
- Subject
- Leiomyosarcoma
Endoscopic ultrasound
medicine.medical_specialty
Muscularis mucosae
Endoscopic Mucosal Resection
Metastasis
03 medical and health sciences
0302 clinical medicine
Stomach Neoplasms
medicine
Humans
Endoscopy, Digestive System
Endoscopic Ultrasound-Guided Fine Needle Aspiration
Aged
medicine.diagnostic_test
business.industry
Esophagogastroduodenoscopy
Stomach
Gastroenterology
General Medicine
medicine.disease
medicine.anatomical_structure
Gastric Leiomyosarcoma
030220 oncology & carcinogenesis
Primary Leiomyosarcoma
030211 gastroenterology & hepatology
Female
Radiology
business
- Language
- ISSN
- 1865-7265
There have been no reports of primary leiomyosarcoma of the stomach treated by endoscopic submucosal dissection (ESD). We report an extremely rare case of gastric leiomyosarcoma that was successfully treated by ESD. An asymptomatic 74-year-old female underwent esophagogastroduodenoscopy for screening in December 2013. A centrally depressed submucosal tumor 10 mm in diameter was detected at the posterior wall of the upper gastric body. Follow-up esophagogastroduodenoscopy conducted 5 months later showed that the tumor diameter had increased to 15 mm. Endoscopic ultrasound revealed a hypoechoic mass located in the second to the middle of the third layer. Endoscopic ultrasound-guided fine-needle aspiration demonstrated a myogenic tumor. The tumor was completely resected by ESD without complications. Immunohistopathological diagnosis of the resected specimen was gastric leiomyosarcoma derived from the muscularis mucosae, with negative lateral and vertical margins. No local recurrence or metastasis has been detected at 36 months after ESD. This is the first report of gastric leiomyosarcoma treated by ESD in the English language literature.