Objective: The incidence of gastric neuroendocrine neoplasms is less than 1%. They are seen as combined tumors with non-neuroendocrine neoplasms at a rate of approximately 7%. This study aims to share the case of mixed neuroendocrine and non-neuroendocrine cancer with the literature. Case: Endoscopic biopsies were taken from the tumoral mass detected in the gastric cardia region at endoscopy in a 60-year-old male patient that has complaints of weight loss and epigastric pain. Histopathological examination revealed malignant tumor infiltration that consisting of neuroendocrine cells with large nuclei and narrow cytoplasm in some areas and adenoid structures composed of atypical cells with pleomorphic large nuclei in some areas. Strong staining was observed in neuroendocrine areas with neuroendocrine markers such as synaptophysin and Chromogranin. Ki-67 proliferative index and mitotic activity were high in neuroendocrine neoplasm areas. The case was reported as a high-grade neuroendocrine-non neuroendocrine mixed neoplasm. Conclusion: Gastric Mixed Neuroendocrine-Nonneuroendocrine neoplasms are rare cases and correct diagnosis and grading are important in the treatment and patient follow-up protocol.
Alan : Sağlık Bilimleri
Dergi Türü : Uluslararası
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