Noto NT, Raudsepp T, Kolb E, Hague DW, Lara MM, Rosser MF. A rare finding of double Barr bodies and X-monosomy/X-trisomy mosaicism in a dog with presumed idiopathic epilepsy.
Vet Clin Pathol 2023;
52:583-587. [PMID:
37448119 DOI:
10.1111/vcp.13261]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/10/2023] [Accepted: 04/17/2023] [Indexed: 07/15/2023]
Abstract
A 4-year-old spayed female Border Collie dog presented to the Neurology and Neurosurgery service for an approximately five-month history of seizures. A complete neurodiagnostic workup was performed and did not reveal any significant abnormalities. The patient's seizures were well controlled with a combination of anticonvulsants. During a manual blood smear review at a follow-up appointment, double Barr bodies were identified in segmented neutrophils. Karyotyping revealed that the patient is mosaic for X-monosomy and X-trisomy, a finding that has never been reported in a dog and is rarely reported in people. This case demonstrates how the identification of abnormal neutrophil nuclear appendages may correlate with chromosomal abnormalities in dogs.
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