This rash appeared 9 hours after a scuba dive. What is the diagnosis?
Answer A. Decompression sicknessCutis marmorata is a dermal manifestation of decompression sickness. Initially, there is erythema accompanied by pruritus, and then the rash spreads irregularly and deepens in color. It develops a mottled appearance, with areas of pallor surrounded by cyanotic patches. During recompression, the rash resolves.
Decompression sickness
Jellyfish envenomation
Mycobacterium marinum infection
Phylum Porifera contact dermatitis
Infection