a 25-year-old woman with a history of five years of bilateral verrucous hyperkeratosis and darkening of both nipples and areolae is reported herein. the histopathology was suggestive of hyperkeratosis of areola and nipple. hyperkeratosis of areola and nipple is a rare condition which is seen unilaterally or bilaterally in both sexes. three types of hyperkeratosis of areola and nipple are descri...

BACKGROUND Histologic examination of nail clippings with periodic acid-Schiff staining is the most sensitive diagnostic test for onychomycosis; however, difficulties in processing nail plates limit its use. In onychomycosis, fungi are most concentrated in the subungual hyperkeratosis rather than in the nail plate. We hypothesized that the diagnosis of onychomycosis could be effectively made fro...

Keratosis follicularis spinulosa decalvans (KFSD) is a rare X linked disease which is characterised by follicular hyperkeratosis of the skin and corneal dystrophy. Seven male patients and six female carriers are described. Special attention has been paid to the dermatological and ophthalmic markers of KFSD in patients and carriers. The most prominent features present in the male patients were f...

Flegel's disease, also known as hyperkeratosis lenticularis perstans, is a rare skin disease characterized by small reddish-brown asymptomatic hyperkeratotic papules usually located on the lower extremities. The histopathological features are hyperorthokeratosis, epidermal atrophy and band-like inflammatory infiltrate in the superficial dermis. Treatment is generally ineffective. We report a ca...