Ectopic duodenal mucosa with
adenomatous hyperplasia in the stomach: a case report
Xiaowei Cai1, Lin Li1, Yanxia
Yang2, Kang Lu1, Peng
Wang1*
1The
985th Hospital of the Joint Logistics Support Force;
2The 986th Hospital of the Joint Logistics Support
Force;
*Corresponding Author: Peng Wang, Master Degree of Pathology, Department
of Pathology, the 985th Hospital of the Joint Logistics Support Force,
Qiaodong Road No.30, Taiyuan 030001, China.
Email:459236789@qq.com.
[Abstract] Introduction: Space-occupying lesions in the
stomach are common diseases in gastroenterology. The diagnosis often
needs the support of pathological results, and the prognosis of
different masses is very different. Patient concerns: A
49-year-old man presented with abdominal distension and loss of appetite
for one month as the main symptoms. Gastroscopy revealed a space
occupying lesion in the pylorus of the antrum. Interventions:The mass was removed by gastroscopy resection with high-frequency
electrocautery. Diagnosis: After electroresection, pathological
and immunohistochemical examination showed that it was “ectopic
duodenal mucosa with adenomatous hyperplasia in the stomach”. This
disease has not been reported. Outcomes: After short-term
follow-up and endoscopic review of this patient, we concluded that this
disease is an extremely rare gastric tumor with benign growth and good
prognosis. Conclusion: This case helps us to recognize the
pathology and treatment of this disease, which is helpful for the
differential diagnosis of other gastric space-occupying diseases.
Keywords: ectopic duodenal
mucosa, adenomatous hyperplasia,stomach,tumor