Abstract
Background: Gastric adenomyoma (GA) is a rare benign lesion comprising of ducts and glands embedded in smooth muscle stroma. Thirty-seven (37) cases of GA were identified until 1993, however, only 15 cases are said to have been reported from 1993 to 2016. Esophagogastroscopy has been widely used in evaluating GA. However, the diagnosis of GA remains exclusively histological.
 Case: We report a 26-year-old Nigerian woman who presented with recurrent dyspepsia with her endoscopic findings suggestive of GA. GA was confirmed by histology, and she was managed conservatively.
 Conclusion: This report will contribute to creating awareness of this uncommon condition and also reminding physicians in considering GA as a possible differential of dyspepsia.
 Keywords: gastric, adenomyoma, dyspepsia, endoscopy, Nigerian, woman
Highlights
Gastric adenomyoma (GA) is a rare benign lesion comprising of ducts and glands embedded in smooth muscle stroma [1]
We report a case of a young woman with GA who presented with dyspepsia
A 26-year-old Nigerian woman presented to the gastroenterology clinic with a sixmonth history of recurrent epigastric pain
Summary
Gastric adenomyoma (GA) is a rare benign lesion comprising of ducts and glands embedded in smooth muscle stroma [1]. GA was first described in 1903 by Magnus-Alsleben [2] It has been characterized as a hamartomatous lesion, and even as heterotopic pancreas without an exocrine or endocrine function in some studies [3]. Thirty-seven (37) cases were identified until 1993, only 15 cases are said to have been reported from 1993 to 2016 [4, 5] It is commonly located in the gastrointestinal tract such as in the stomach (25–38%), duodenum (17–36%), and jejunum (15–21%) [6]. The most common location reported is in the antrum (85%) and the pylorus (15%) It is rarely found in the body [7, 8]. We report a case of a young woman with GA who presented with dyspepsia
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