ArticleFrontiers in neurology2022
The "hot cross bun sign" in patients with autoimmune cerebellar ataxia: A case report and literature review.
Article in Frontiers in neurology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
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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
6 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Clinical features of paraneoplastic neurologic syndromes with anti-Ri antibodies: PRISMA systematic review.Journal of neurology · 2026Pooled it
- Movement Disorders Associated With Breast Cancer: A Systematic Review.Annals of Indian Academy of Neurology · 2026Article
- Revisiting 'hot cross bun' sign: a multicentre MRI study of 97 patients with autopsy-confirmed multiple system atrophy.Journal of neurology, neurosurgery, and psychiatry · 2026Article
- A Review on Radiologic Hot Cross Bun Sign and Related Clinical Conditions.Cerebellum (London, England) · 2025Review
- Asymmetry in Atypical Parkinsonian Syndromes-A Review.Journal of clinical medicine · 2024Review
- "Hot Cross Bun" Sign in a Patient with Glutamic Acid Decarboxylase 65-KDa Isoform Associated Cerebellar Ataxia: Case Report and Review of the Literature.Cerebellum (London, England) · 2024Review
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objectives: The "hot cross bun sign" (HCBs) on magnetic resonance imaging (MRI) has been initially considered specific for multiple system atrophy with cerebellar features. However, a number of other conditions have since been described, which may be associated with this imaging sign. We herein describe a patient with anti-Ri and paraneoplastic cerebellar ataxia, and review the association of the HCBs on imaging with various neurological autoimmune conditions. Methods: We report a 40-year-old woman with anti-Ri-associated paraneoplastic neurological syndrome and breast carcinoma, in whom brain MRI revealed the HCBs late in the disease course. We also reviewed similar cases reported in the literature. Results: The patient presented with cerebellar ataxia, polyneuropathy, and pyramidal signs. Although brain MRI was initially unremarkable, the HCBs and T2-weighted hyperintensity of the bilateral middle cerebellar peduncles were observed at later follow-up. Anti-Ri was detected in the serum and cerebrospinal fluid. Breast adenocarcinoma was confirmed Discussion: The HCBs can be associated with paraneoplastic and non-paraneoplastic cerebellar ataxia, which may reflect neurodegeneration secondary to autoimmune injury. Thus, the HCBs should not be considered a contraindication for autoimmune cerebellar syndrome.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.