Palmoplantar keratoderma of Sybert (PPK of Sybert) or Sybert’s keratoderma was first documented by Virginia Sybert in 1988. Due to the high degree of similarity, it was previously considered to be Greither’s keratoderma, an established entity at that time. Currently, clinical and ultrastructural studies distinguish between the two disorders. Sybert’s keratoderma is an extremely rare type of ker...

the inheritance of olmsted syndrome that is a very rare congenital with transgredient palmoplantar keratoderma is distinguished by the presence of massive hyperkeratosis with fissured skin and periorificial chaps. it usually appears during the early life and mostly in male pateints. herein we report a case of olmsted syndrome which is associated with ichthyosis and somatic type of delusion duri...

Palmoplantar keratoderma is a heterogeneous group of hereditary and acquired disorders characterized by abnormal thickening of palms and soles. Hypothyroidism is an unusual cause of palmoplantar keratoderma, rarely reported in the literature. We report a case of a 43-year-old woman presented with a 3-month history of a diffuse palmoplantar hyperkeratosis unresponsive to topical keratolytics and...

Brunauer-Fuhs-Siemens palmoplantar keratoderma, commonly known as striate palmoplantar keratoderma, is a rare, autosomally inherited disease of linear hyperkeratosis in which patient usually presents with conspicuous longitudinal hyperkeratosis on volar surface of hands and feet. Mutations in 3 genes namely desmoglein 1, desmoplakin and keratin 1, have been identified and held responsible for t...

BACKGROUND Mutations in genes coding for 2 desmosomal proteins, desmoglein 1 and desmoplakin, have been shown to cause autosomal dominant keratoderma palmoplantaris striata. OBSERVATIONS We describe a family affected with a diffuse nonstriated form of palmoplantar keratoderma. Histopathologic examination of skin biopsy specimens disclosed cell-cell disadhesion in the suprabasal layers of the ...

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...

Autosomal dominant inheritance of a syndrome comprising palmoplantar keratoderma, nail dystrophy, and hereditary motor and sensory neuropathy (HMSN) was observed in three generations of one family. Nail dystrophy affected the toe and fingernails; it was present at birth or developed during early childhood. Palmoplantar keratoderma became apparent in later childhood. Each subject with nail dystr...

The inheritance of Olmsted syndrome that is a very rare congenital with transgredient palmoplantar keratoderma is distinguished by the presence of massive hyperkeratosis with fissured skin and periorificial chaps. It usually appears during the early life and mostly in male pateints. Herein we report a case of Olmsted syndrome which is associated with ichthyosis and somatic type of delusion duri...

BACKGROUND An autosomal dominant form of diffuse non-epidermolytic palmoplantar keratoderma, palmoplantar keratoderma of Bothnian type, is caused by mutations in the AQP5 gene encoding the cell-membrane water channel protein aquaporin 5 leading to defective epidermal-water-barrier function in the epidermis of the palms and soles. CASE PRESENTATION We report the first Danish family diagnosed w...

Christ-Siemens-Touraine syndrome is a form of anhidrotic ectodermal dysplasia (ED) characterized by triad of hypodontia, hypotrichosis, and hypohidrosis. Palmoplantar keratoderma is a characteristic feature of hidrotic forms of ED. Till date, only two cases have been reported of Christ-Siemens-Touraine syndrome with palmoplantar keratoderma; here we report a similar case emphasizing this rare a...