Table 1. Specification of our patients and the two subgroups of Vohwinkel syndrome

 

Mode of inheritance

Gene locus

PPK

Pseudoainhum

Onset

Extensor starfish keratosis

Erythematous border

Extra cutaneous feature

Histopathology

Vohwinkel syndrome (classic form)

AD

13q11,
q12
(connexin 26)

Diffuse
(transgredient)

+

Infancy

+

+

Deafness

Hyperkeratosis, Parakeratosis, Acanthosis and  hypergranulosis

Vohwinkel syndrome (variant form)

AD

1q21
(loricrin)

Diffuse
(transgredient)

+

Infancy

+

+

Icthyosis

Hyperkeratosis, Parakeratosis, Acanthosis and hypergranulosis

Our patients

AR

?

Focal(striata) (transgredient)

+

Infancy

_

+

Hypotrichosis

Hyperkeratosis, Parakeratosis, Acanthosis and hypergranulosis