A case of gastric/duodenal diffuse large B cell lymphoma observed during the administration of tacrolimus/azathioprine for dermatomyositis.

IF 0.8 Q4 GASTROENTEROLOGY & HEPATOLOGY
Ayako Yamamoto, Ayumi Ito, Shinichi Nakamura, Tomoaki Higuchi, Masayoshi Harigai, Akihito Shinohara, Tomoko Yamamoto, Yoji Nagashima, Katsutoshi Tokushige
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引用次数: 0

Abstract

The patient was diagnosed with amyopathic dermatomyositis complicated with interstitial pneumonia (IP) at age 35. She had been treated with prednisolone and maintained on tacrolimus (TAC) + azathioprine (AZA). Eight years later, she experienced epigastric pain, and esophagogastroduodenoscopy (EGD) led to a diagnosis of duodenal ulcer. The pain did not improve, so she visited our hospital, where she presented with malaise, anemia, and weight loss. An EGD revealed submucosal tumor-like protrusions in the anterior and posterior walls of the gastric antrum and punched-out ulcers with auricle-like marginal swelling on the inside of the protrusions. Irregular-shaped punched-out ulcers were also observed in the duodenal bulb. Lymphoma was suspected, and biopsy was performed. Histopathology showed diffuse large, atypical lymphocytes with enlarged nuclei, and immunohistochemical staining revealed CD20-positive cells. Diffuse large B cell lymphoma (DLBCL) was diagnosed, which was considered as lymphomas arising in immune deficiency/dysregulation. After discontinuing TAC + AZA for three months, the gastrointestinal symptoms improved, and on EGD, the duodenal lesions had disappeared, with only a shallow depression covered with regenerated epithelium remaining in the posterior wall of the gastric antrum. Seven months later, the patient underwent follow-up EGD, and the disappearance of lymphoma cells was confirmed histopathologically by biopsy. Repeated and detailed endoscopic examination should be considered in an immunosuppressed patient with treatment-resistant gastric or duodenal ulcers.

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来源期刊
Clinical Journal of Gastroenterology
Clinical Journal of Gastroenterology GASTROENTEROLOGY & HEPATOLOGY-
CiteScore
2.00
自引率
0.00%
发文量
182
期刊介绍: The journal publishes Case Reports and Clinical Reviews on all aspects of the digestive tract, liver, biliary tract, and pancreas. Critical Case Reports that show originality or have educational implications for diagnosis and treatment are especially encouraged for submission. Personal reviews of clinical gastroenterology are also welcomed. The journal aims for quick publication of such critical Case Reports and Clinical Reviews.
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