Gastric Plexiform Fibromyxoma Resected Using Nonexposed Endoscopic Wall-Inversion Surgery: A Case Report

Gastric plexiform fibromyxoma is extremely rare. In our case, upper gastrointestinal endoscopy of a 41-year-old woman patient revealed a 1-cm submucosal tumor (SMT) in the greater curvature of the lower body of the stomach. On contrast-enhanced computed tomography, the tumor was hypervascular in the arterial phase with continuous enhancement in the post-venous phase. On endoscopic ultrasonography, it had a low echo pattern. The preoperative diagnosis was a gastric SMT with a rich vasculature; however because the biosy specimen did not contain tumor tissue, a malignant tumor could not be excluded. The patient underwent nonexposed endoscopic wall-inversion surgery (NEWS), and the tumor was completely resected. Immunohistochemical examination revealed that the tumor was positive for D2-40 and α-smooth muscle actin, but negative for c-kit, discovered on gastrointestinal stromal tumor-1, desmin, S100, Melan-A, signal transducer and activator of transcription 6, insulinoma-associated protein 1, CXCL13, ETS transcription factor, follicular dendritic cell, anaplastic lymphoma kinase, human melanoma black, h-caldesmon, and CD1a, 10, 21, 23, 31, 34, 68, and 163. Approximately, 1–2% of the tumor cell nuclei were Ki-67-positive. Finally, we diagnosed the tumor as a plexiform fibromyxoma. In conclusion, NEWS is an effective method for the treatment of SMTs with a diameter of <3 cm.

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Gastric Plexiform Fibromyxoma Resected Using Nonexposed Endoscopic Wall-Inversion Surgery: A Case Report ; volume:16 ; number:1 ; year:2022 ; pages:159-164 ; extent:6 ; Case reports in gastroenterology ; 16, Heft 1 (2022), 159-164 (gesamt 6)

Beteiligte, Orts- und Zeitangaben

• Urheber: Ebi, Masahide ; Nagao, Kazuhiro ; Sugiyama, Tomoya ; Yamamoto, Kazuhiro ; Saito, Takuya ; Kurahashi, Shintaro ; Yamaguchi, Yoshiharu ; Adachi, Kazunori ; Tamura, Yasuhiro ; Izawa, Shinya ; Funaki, Yasushi ; Ogasawara, Naotaka ; Sasaki, Makoto ; Tsuzuki, Toyonori ; Kasugai, Kunio

Weitere Informationen

• DOI: 10.1159/000522411
• URN: urn:nbn:de:101:1-2022051200531095796416
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 15.08.2025, 07:25 MESZ