학술논문
Helicobacter pylori-Negative Gastric Mucosa-Associated Lymphoid Tissue Lymphoma Presenting with Melena as the Initial Symptom / 下血を初発症状としたH.pylori陰性・胃MALTリンパ腫の1例
Document Type
Journal Article
Author
Source
Progress of Digestive Endoscopy. 2019, 95(1):43
Subject
Language
Japanese
ISSN
1348-9844
2187-4999
2187-4999
Abstract
Upper gastrointestinal endoscopy revealed multiple ulcers in the stomach. Pathological examination of biopsy specimens of an ulcer revealed infiltration of atypical lymphocytes and lymphoepithelial lesions. In addition, he was diagnosed with mucosa-associated lymphoid tissue (MALT) lymphoma by immunostaining. The patient was negative for Helicobacter pylori antibodies in sera and H. pylori antigens in stool specimens. Moreover, combined positron emission tomography and computed tomography (PET-CT) imaging showed no nodular lesions. Clinical remission has been maintained by radiotherapy (32 Gy in 20 fractions).