Lamellar ichthyosis (LI) is a rare genetic disorder with autosomal recessive inheritance. It is equally seen in both sexes and usually manifests at birth. The child presents as a collodion baby. The erythema is minimal or absent; but when present, it is maximum on the face. The scaling is generalized, accentuated on lower extremities and flexural areas. Rickets is a condition in which there is ...

Keratinization disorders Epidermolytic hyperkeratosis KRT1, KRT10 12 Epidermolytic PPK KRT9 12 Non-epidermolytic PPK KRT16 12 Vohwinkel’s syndrome LOR 31 Ichthyosis bullosa Siemens KRT2e 64 Pachonychia congenita type 1/2 KRT6a, 16, 17 64 X-linked ichthyosis STS 7 Lamellar ichthyosis TGM1 31 Palmoplantar keratoderma GJB2 61 with deafness Erythrokeratodermia variabilis GJB3 60 Darier’s disease AT...

Nutritional rickets has occasionally been described in children with lamellar ichthyosis, but their vitamin D endocrine status has not been described. We report 3 cases of vitamin D-deficiency rickets associated with ichthyosis in African children. A 13-month-old Nigerian boy with lamellar ichthyosis had rib beading, elevated alkaline phosphatase, and rachitic changes on radiographs. His ricket...

Congenital ichthyosis is often associated with typical neonatal phenotypes, "Collodion baby" and "Harlequin foetus", later transforming into severe lamellar or erythrodermic ichthyosis. However, in a minority of cases the skin condition will improve spontaneously after birth, although slight scaling, xerosis, hypohidrosis and keratoderma usually persist. Some of these patients will eventually b...