ArticleJournal of medical case reports2023
Progressive encephalomyelitis with rigidity and myoclonus (PERM) associated with anti-glycine receptor antibodies and urothelial carcinoma: a case report.
Article in Journal of medical case reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.
- Progressive Encephalomyelitis With Rigidity and Myoclonus With Glycine Receptor Antibodies: Clinical Features and Outcomes.Neurology(R) neuroimmunology & neuroinflammation · 2025Pooled it
- Acute onset of progressive encephalomyelitis with rigidity and myoclonus complicated by paroxysmal respiratory failure: a case report.BMC neurology · 2026Article
- Paraneoplastic progressive encephalomyelitis with rigidity and myoclonus associated with monoclonal B-cell lymphocytosis in the setting of longstanding methotrexate use: case report.Frontiers in immunology · 2024Article
- Clinical features in antiglycine receptor antibody-related disease: a case report and update literature review.Frontiers in immunology · 2024Review
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundProgressive encephalomyelitis with rigidity and myoclonus (PERM) is a rare neurological condition with paraneoplastic etiology in about 20% of cases, usually presenting before or shortly after the oncological diagnosis is established. PERM associated with anti-glycine receptor antibodies is not previously reported in a patient with bladder cancer. CASE PRESENTATION: A 72-years-old Caucasian male was admitted with acute onset of dysarthria, dysphagia and trismus three years after initial surgical treatment for bladder cancer. The condition was initially diagnosed as tetanus and treated accordingly, but the diagnosis was reconsidered because of progression despite adequate treatment. Diagnostic workup on readmission revealed lung and paraaortal metastases from bladder cancer and anti-glycine receptor (anti-GlyR) antibodies both in the cerebrospinal fluid and in serum, which supplemented with the clinical presentation led to the diagnosis of PERM, presumably related to bladder cancer. The patient showed improvement and stabilization after treatment with intravenous immunoglobulin and chemotherapy against metastatic bladder cancer.
conclusionTo the best of our knowledge, this is the first reported case of anti-GlyR antibody positive PERM related to urothelial carcinoma. The symptoms mimicked tetanus, and responded to chemotherapy and immunotherapy.
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Registered trials
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