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Differential diagnosis of submucosal gastric tumors: gastric schwannomas misdiagnosed as GISTs.
J Surg Case Rep
December 2024
Department of Pathology, İzmir University of Economics, Fevzi Çakmak, Sakarya Cd. No. 156, 35330 Balçova/İzmir, Türkiye.
Schwannomas commonly occur in the head and neck region but are rarely seen in the gastrointestinal tract; the stomach and small intestine are the most commonly involved sites. These tumors are usually misdiagnosed as gastrointestinal stromal tumors (GISTs) before histopathological confirmation due to radiological similarity. GI schwannomas show positivity for S100 protein and vimentin but are negative for CD 117 and CD 34, which helps in differentiating the tumor from GISTs.
View Article and Find Full Text PDFMesocolic schwannoma mimicking gastrointestinal stromal tumor: A case report and review of literature.
Medicine (Baltimore)
November 2024
Gastrointestinal Surgery Medical Center, Weifang People's Hospital, Shandong Second Medical University, Weifang, Shandong, China.
Rationale: Schwannomas are common peripheral nerve tumors originating from Schwann cells, primarily occurring in the head and neck, limbs, and trunk. Schwannomas occurring in the mesocolon are rare and often have no specific manifestations. Abdominal schwannomas need to be differentiated from common abdominal tumors such as gastrointestinal stromal tumors.
View Article and Find Full Text PDFComprehensive analysis of diagnosis and treatment in 99 cases of abdominal Schwannoma.
Cancer Med
August 2024
Department of General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
Purpose: Schwannoma is a rare mesenchymal tumor. In this study, we analyzed clinicopathologically 99 schwannomas.This retrospective study delves into the clinical, pathological, and immunohistochemical dimensions of abdominal schwannomas.
View Article and Find Full Text PDFApplication of Computer-Assisted Endoscopic Ultrasonography Based on Texture Features in Differentiating Gastrointestinal Stromal Tumors from Benign Gastric Mesenchymal Tumors.
Turk J Gastroenterol
May 2024
Department of Gastroenterology and Hepatology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Background/aims: Gastrointestinal stromal tumors are common gastric mesenchymal tumors that are potentially malignant. However, endoscopic ultrasonography is poor in diagnosing gastrointestinal stromal tumors. The study investigated the efficacy of texture features extracted from endoscopic ultrasonography images to differentiate gastrointestinal stromal tumors from gastric mesenchymal tumors.
View Article and Find Full Text PDFArtificial Intelligence-Based Diagnosis of Gastric Mesenchymal Tumors Using Digital Endosonography Image Analysis.
J Clin Med
June 2024
Department of Computer Engineering, Silla University, Busan 46958, Republic of Korea.
Article Synopsis
- * Researchers analyzed data from 464 patients and developed classification models using both clinical and endoscopic factors along with digital image analysis.
- * Incorporating additional factors improved the performance of AI models, with notable increases in AUC values, especially for random forest and K-nearest neighbor models, indicating more accurate diagnoses.
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