OMIA 002193-9940 : Ichthyosis, fetalis in Ovis aries

In other species: cattle

Possibly relevant human trait(s) and/or gene(s)s (MIM numbers): 242500 , 601277

Mendelian trait/disorder: unknown

Considered a defect: yes

Cross-species summary: Called Autosomal Recessive Congenital Ichthyosis (ARCI) in humans (see MIM number above)

Clinical features: Câmara et al. (2017) reported a case of a single crossbred lamb: "Physical examination revealed apathy, fever, ectropion and eclabium. Generalized thickening and scaling of the skin was noted; this was most severe on the face, ears, inner thighs, limbs and perineum. Deep fissures and wounds were present on the hind limbs and forelimbs." Lesions progressed over time and the animal was euthanised at 3 months of age.

Pathology: Câmara et al. (2017) reported postmortem findings included "severe epidermal thickening, multiple subcutaneous abscesses, ectropion and corneal scars. Histological findings revealed diffuse orthokeratotic hyperkeratosis, follicular keratosis, irregular epidermal hyperplasia and atrophy of the sebaceous glands. Serum vitamin A concentration was within the normal range for the species."

Reference


2017 Câmara, A.C.L., Borges, P.A.C., Paiva, S.A., Pierezan, F., Soto-Blanco, B. :
Ichthyosis fetalis in a cross-bred lamb. Vet Dermatol 28:516-e125, 2017. Pubmed reference: 28585294. DOI: 10.1111/vde.12459.

Edit History


  • Created by Frank Nicholas on 30 Apr 2019
  • Changed by Frank Nicholas on 30 Apr 2019