Preoperatively diagnosed gastric collision tumor with mixed adenocarcinoma and gastrointestinal stromal tumor: a case report and literature review

Reports of gastric collision tumors, comprising adenocarcinoma and gastrointestinal stromal tumor, are extremely rare. Here, we report the case of a 68-year-old male who was diagnosed with a lower-body, moderately differentiated, tubular-type adenocarcinoma and submucosal tumor and underwent an elec...

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Detalles Bibliográficos
Autores principales: Matsuno, Kunihiko, Kanazawa, Yoshikazu, Kakinuma, Daisuke, Hagiwara, Nobutoshi, Ando, Fumihiko, Masuda, Yuka, Fujita, Itsuo, Arai, Hiroki, Nomura, Tsutomu, Kato, Shunji, Yoshiyuki, Toshiro, Peng, Wei-Xia, Yoshida, Hiroshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Singapore 2021
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8016778/
https://www.ncbi.nlm.nih.gov/pubmed/33512639
http://dx.doi.org/10.1007/s12328-021-01343-4
Descripción
Sumario:Reports of gastric collision tumors, comprising adenocarcinoma and gastrointestinal stromal tumor, are extremely rare. Here, we report the case of a 68-year-old male who was diagnosed with a lower-body, moderately differentiated, tubular-type adenocarcinoma and submucosal tumor and underwent an elective D2 distal gastrectomy. The tumor cells of the gastrointestinal stromal tumor were positive for H-caldesmon and CD117, weakly positive for smooth muscle actin and DOG-1, and negative for desmin, S-100 protein, CD31, and AE1/AE3. The tumor had grown into a mixed form of adenocarcinoma and gastrointestinal stromal tumor. Thus, we report the first case of a preoperatively diagnosed collision tumor in the stomach consisting of adenocarcinoma and gastrointestinal stromal tumor.

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