Curth's criteria link skin, internal malignancy: possibility of underlying malignancy.(Helen O. Curth)

NEW ORLEANS -- The true relationship between unusual dermatoses and underlying malignancy can be assessed by using a specific set of criteria, Dr. Jeffrey Callen said at a dermatologic update sponsored by Tulane University.

Curth's criteria, developed by Helen O. Curth, are particularly helpful, said Dr. Callen, professor of dermatology at the University of Louisville (Ky.).

These criteria require that:

* The dermatosis is relatively uncommon.

* It occurs with a specific neoplasm.

* The two conditions are frequently observed together.

* The onset is concurrent.

* The conditions take a parallel course.

* …