Delayed, transient, postsolar truncal pruritus: a report of two cases.

We present two cases of a rare clinical condition presenting as a delayed and transient pruritus of the trunk following sun exposure. These cases differ from previously reported conditions such as brachioradial pruritus because of the transient nature and anatomical location of the itching. These two cases extend the clinical spectrum of sun-induced pruritus. The patients' initial response to rigorous sun protection is good, but the specific treatment and natural history of the condition have yet to be determined.