Hyperkeratosis of the nipple and areola (HNA) is an uncommon condition characterized by verrucose thickening and café-au-lait pigmentation of the nipple and areola.1 It was first described by Tauber in 1923 and approximately 70 cases have been published to date in the medical literature. Several therapeutic approaches have been used to treat this condition, although no gold standard has yet bee...

Two siblings had hyperpigmented indurations over the inner aspects of both thighs extending to the lower abdomen. Skin biopsy showed plasma cell panniculitis favoring a diagnosis of morphea profundus. Family history of consanguinity was present, but both parents were unaffected. To our knowledge this is the first report of autosomal recessive plasma cell panniculitis with the clinical manifesta...

Dowling Degos disease is characterised by hyperpigmented macules arranged in a reticulate pattern in the flexures. The rare hypopigmented variant shows characteristic acanthosis with antler like rete ridges but with pigment only at the tips of the rete ridges. We describe here a rare variant with coexistence of characteristic reticulate hyperpigmentation and hypopigmented macules, which has bee...

Bloch-Sulzberger syndrome (incontinentia pigmenti) is a rare genodermatosis that affects predominantly females, since it is generally lethal to male fetuses in utero. It is characterized principally by skin lesions, but may also involve dental, ophthalmological and neurological abnormalities. The skin lesions are present in four different phases: vesicular, verrucous, hyperpigmented and atrophi...