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Peer-reviewedCC BY-NC-NDACG case reports journal

Collagenous Gastritis Presenting as Chronic Nausea and Vomiting

  • Bita Shahrvini1
  • Alexandra C. Greb1
  • Hanlin L. Wang2
  • Priyam V. Tripathi3
  • Guy A. Weiss3
  • Anthony Myint3
  1. 1Department of Internal Medicine, University of California, Los Angeles, CA
  2. 2Department of Pathology and Laboratory Medicine, University of California, Los Angeles, CA
  3. 3Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California, Los Angeles, CA
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Abstract

Collagenous gastritis (CoG) is a rare disorder characterized by subepithelial collagen band deposition in the gastric mucosa. In this report, we describe a case of a 33-year-old woman presenting with chronic, episodic, postprandial nausea and vomiting later found to have biopsy proven CoG. She symptomatically improved following proton pump inhibitor and budesonide initiation and cessation of nonsteroidal anti-inflammatory drugs. This case underscores the insidious nature of CoG; it should be considered in functional or undifferentiated nausea and vomiting. Moreover, it demonstrates associations between CoG, nonsteroidal anti-inflammatory drug use, and isolated immunoglobulin A deficiency.

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Cite

BibTeXRIS
BibTeX
@article{shahrvini2026collagenous,
  title = {{Collagenous Gastritis Presenting as Chronic Nausea and Vomiting}},
  author = {Bita Shahrvini and Alexandra C. Greb and Hanlin L. Wang and Priyam V. Tripathi and Guy A. Weiss and Anthony Myint},
  journal = {ACG case reports journal},
  year = {2026},
  month = oct,
  doi = {10.14309/crj.0000000000002378},
  url = {https://europepmc.org/article/PMC/PMC13722502},
  note = {CC BY-NC-ND},
}
RIS
TY  - JOUR
TI  - Collagenous Gastritis Presenting as Chronic Nausea and Vomiting
AU  - Bita Shahrvini
AU  - Alexandra C. Greb
AU  - Hanlin L. Wang
AU  - Priyam V. Tripathi
AU  - Guy A. Weiss
AU  - Anthony Myint
PY  - 2026
DA  - 2026/10/30
JO  - ACG case reports journal
DO  - 10.14309/crj.0000000000002378
UR  - https://europepmc.org/article/PMC/PMC13722502
AB  - Collagenous gastritis (CoG) is a rare disorder characterized by subepithelial collagen band deposition in the gastric mucosa. In this report, we describe a case of a 33-year-old woman presenting with chronic, episodic, postprandial nausea and vomiting later found to have biopsy proven CoG. She symptomatically improved following proton pump inhibitor and budesonide initiation and cessation of nonsteroidal anti-inflammatory drugs. This case underscores the insidious nature of CoG; it should be considered in functional or undifferentiated nausea and vomiting. Moreover, it demonstrates associations between CoG, nonsteroidal anti-inflammatory drug use, and isolated immunoglobulin A deficiency.
SN  - 2326-3253
ER  -