ArticleJournal of veterinary internal medicine2021
Persistent fontanelles in Chihuahuas. Part I. Distribution and clinical relevance.
Article in Journal of veterinary internal medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 9 citations in OpenAlex.
- Incorporating Morphological Evaluations into Breeding Soundness Examinations for Female Dogs.Animals : an open access journal from MDPI · 2025Review
- Surgical management of primary and idiopathic internal hydrocephalus in dogs and cats.Frontiers in veterinary science · 2024Review
- Persistent fontanelles in Chihuahuas. Part I. Distribution and clinical relevance.Journal of veterinary internal medicine · 2021Article
- Persistent fontanelles in Chihuahuas. Part II: Association with craniocervical junction abnormalities, syringomyelia, and ventricular volume.Journal of veterinary internal medicine · 2021Article
- Exceptional Changes in Skeletal Anatomy under Domestication: The Case of Brachycephaly.Integrative organismal biology (Oxford, England) · 2021Article
- Association among raised intraventricular pressure, clinical signs, and magnetic resonance imaging findings in dogs with congenital internal hydrocephalus.Journal of veterinary internal medicineArticle
- Association of Extreme Brachycephaly With Persistent Fontanelles in Adult Chihuahuas.Journal of veterinary internal medicineArticle
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 4 countries.
Funding
Abstract
backgroundThe Chihuahua dog breed is known for frequent occurrence of a bregmatic fontanelle on the dorsal skull. A common conception is that this skull defect is a clinically irrelevant finding. No studies, however, describe its prevalence or whether it is accompanied by other persistent fontanelles (PFs). Although Chihuahuas are predisposed to Chiari-like malformation (CM) and syringomyelia (SM), it is unknown whether PFs occur more commonly in dogs with clinical signs that are caused by CM or SM. HYPOTHESIS/
objectivesTo describe the number and location of PFs at cranial sutures (CSs) and to compare the occurrence of these PFs in dogs with and without CM/SM-related clinical signs. We hypothesized that PFs also occur commonly at lateral and caudal cranial surfaces, affect a higher number of CSs, and are larger in dogs with CM/SM-related clinical signs. ANIMALS: Fifty client-owned Chihuahuas with or without CM/SM-related clinical signs.
resultsOf the 50 dogs evaluated, 46 (92%) had either 1 or several PFs. The mean ± SD number of PFs was 2.8 ± 3.0 (range, 0-13). A total of 138 PFs occupied 118 CSs with 57 (48%) located dorsally, 44 (37%) caudally, and 17 (14%) laterally. The number of CSs affected by PFs was significantly higher (P ≤ .001) and total PF area was significantly larger (P = .003) in dogs with CM/SM-related clinical signs. CONCLUSIONS AND CLINICAL IMPORTANCE: Persistent fontanelles are very common in this group of Chihuahuas and appear at dorsal, lateral, and caudal cranial surfaces. They are more numerous and larger in Chihuahuas with CM/SM-related clinical signs.
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