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Harlequin ichthyosis in a HanWoo calf
Jong-Ki Cho1, Jung-Min Son, Doo-Soo Lee
1College of Veterinary Medicine, Chungnam National University, Daejeon, Korea.
The Journal of Veterinary Medical Science
|June 7, 2007
Summary
Harlequin ichthyosis, a severe congenital skin disorder, was diagnosed in a HanWoo calf. This rare condition caused extensive scaling and malformations, marking the first documented case in this cattle breed.
Area of Science:
- Veterinary Dermatology
- Animal Genetics
- Congenital Disorders
Background:
- Ichthyosis is a rare genetic disorder causing excessive skin scaling.
- Harlequin ichthyosis is a severe, often fatal, form of congenital ichthyosis.
Observation:
- A male HanWoo calf presented with generalized, thickened, scaly skin plates covering over 90% of its body.
- The calf exhibited distinct facial abnormalities including small malformed ears, ectropion, eclabium, and an abnormal nose.
Findings:
- Histopathological examination revealed marked compact orthokeratotic hyperkeratosis of the epidermis and follicular epithelia.
- Gross and microscopic findings were consistent with a diagnosis of harlequin ichthyosis.
Implications:
- This case represents the first documented instance of harlequin ichthyosis in HanWoo cattle.
- Understanding the genetic basis and presentation of this condition in HanWoo cattle is crucial for future diagnosis and management.
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