[A man with a painful index finger].

A 52-year-old man presented with pain in his right index finger. No history of trauma was reported. His finger nails were dystrophic and the X-ray of the finger showed typical osteolysis of the distal phalanx of his right index finger.

Keratosis follicularis spinulosa decalvans: a family study of seven male cases and six female carriers.

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.

Xeroderma pigmentosum: squamous cell carcinoma of the tongue.

A case report is presented of a 9-year-old boy with xeroderma pigmentosum complementation group C, who died from a squamous cell carcinoma arising from the tip of the tongue. Treatment with etretinate and in a later phase with indomethacin and prednisolone was not effective, except for a limited initial response of the tumour to etretinate.