Multiple gastric neuroendocrine tumors in a patient with parietal cell dysfunction and adenosine triphosphatase H
Carcinoid
H+/K+ ATPase
Parietal cell protrusion
Rindi’s classification
Journal
Clinical journal of gastroenterology
ISSN: 1865-7265
Titre abrégé: Clin J Gastroenterol
Pays: Japan
ID NLM: 101477246
Informations de publication
Date de publication:
18 Apr 2024
18 Apr 2024
Historique:
received:
05
01
2024
accepted:
01
04
2024
medline:
18
4
2024
pubmed:
18
4
2024
entrez:
18
4
2024
Statut:
aheadofprint
Résumé
A 47-year-old woman presented with multiple gastric tumors, each up to 10 mm in diameter, in the gastric body and fundus without mucosal atrophy. White spots and numerous transparent, light-brownish, small, and rounded spots were observed in the background gastric mucosa. Biopsy specimens obtained from the tumors revealed gastric neuroendocrine tumors. The patient exhibited hypergastrinemia and achlorhydria and tested negative for serum parietal cell antibody, intrinsic factor antibody, and Helicobacter pylori infection. Moreover, no additional lesions were detected on imaging. These findings were inconsistent with Rindi's classification. The tumor was resected via endoscopic submucosal resection. Histopathological examination revealed gastric neuroendocrine tumors G2 infiltrating the submucosa with no atrophy of the gastric mucosa, dilated fundic glands, parietal cell protrusions, and hyperplasia of enterochromaffin-like cells. Immunohistochemically, the parietal cells were negative for both α- and β-subunits of H
Identifiants
pubmed: 38635098
doi: 10.1007/s12328-024-01969-0
pii: 10.1007/s12328-024-01969-0
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2024. Japanese Society of Gastroenterology.
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