Paraneoplastic acrokeratosis, or Bazex syndrome is a cutaneous condition characterized by psoriasiform changes of hands, feet, ears, and nose, with involvement of the nails and periungual tissues being characteristic and indistinguishable from psoriatic nails. The condition is associated with carcinomas of the upper aerodigestive tract.[2]: 665
a) Dark red, infiltrative, desquamative plaques on nose/cheeks b) dark red, infiltrative plaques with scales on auricle c) confluent erythema on knees d) infiltrative erythematous plaques with scales ; all fingernails were yellow-brown/thickened e) both plantar pedis were discolored/hyperkeratotic
a-b) After treatment with gefinitib
History
This was first reported by the French dermatologist, Andre Bazex (1911–1988), in 1945. Contrary to some publications, he did not die in 1944, as a victim of the Battle for France, but instead, was alive and well and continued his research on skin diseases up until his retirement in 1980.[3]