Intestinal pseudo-obstruction, myasthenia gravis, and thymoma
Abstract
Two patients presented with abdominal pain, recurrent vomiting, weight loss, and constipation secondary to intestinal pseudo-obstruction. Both patients had symptoms and signs of myasthenia gravis, acetylcholine receptor antibodies, and thymoma. In one patient inflammatory cell infiltrates and occasional degenerate neurons were found in the myenteric plexus. The gastrointestinal symptoms resolved during treatment with pyridostigmine. The close temporal relationship between the onset of the gastrointestinal symptoms and the detection of myasthenia gravis and thymoma suggests that intestinal pseudo-obstruction can be a paraneoplastic syndrome associated with thymoma.
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Thymoma-associated immune dysregulation has been linked to severe GI syndromes such as intestinal pseudo-obstruction and chronic diarrhea.
“MG can also co-occur with autoimmune autonomic neuropathy (Vernino et al., 2001), and thymoma-associated immune dysregulation has been linked to severe GI syndromes such as intestinal pseudo-obstruction and chronic diarrhea (Anderson et al., 1996; Gupta et al., 1985).”
From Autonomic nervous system and gastrointestinal manifestations with an emphasis on gastric dysfunction (2026) · cites this paper as Anderson et al., 1996
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References 14 · Cited by 45
- Authors
- Anderson, N. E., Hutchinson, D. O., Nicholson, G. I., Aitcheson, F., & Nixon, J. M.
- Affiliations
- Auckland City Hospital (NZ)
- ORCID
- Anderson, N. E.
- Venue
- Neurology
- Published
- 1996-10
- Volume
- 47
- Issue
- 4
- Pages
- 985-987
- ISSN
- 0028-3878 (ISSN-L)
- 1526-632X
- OpenAlex
- W2021682230
- Cited by
- 45
- References
- 14
- Citations by year
- 2026: 2 · 2025: 3 · 2024: 1 · 2022: 2 · 2021: 3 · 2019: 1 · 2016: 1 · 2014: 1 · 2013: 1 · 2012: 3
- FWCI
- 1.14
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Neurology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Neurology › Myasthenia Gravis and Thymoma
- Health Sciences › Medicine › Neurology › Autoimmune Neurological Disorders and Treatments
- Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
- Keywords
- intestinal pseudo-obstruction, myasthenia gravis, thymoma, paraneoplastic syndrome, acetylcholine receptor antibodies, myenteric plexus, pyridostigmine, constipation, vomiting, weight loss
- MeSH terms
- Aged, Female, Humans, Intestinal Pseudo-Obstruction, Male, Middle Aged, Myasthenia Gravis, Thymoma
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