The so-called Hoffman's lymphangitis of the penis: is it a lymphangitis or a phlebitis?

Hoffman's plastic lymphangitis of the penis is a benign, uncommon entity whose aetiology is still unknown. Microscopically there is a fibrous thickening of the involved lymph vessels but the primary localization of the lesion--lymphatic or venous--is still debated. Anatomo-clinical and histological findings suggest a primary involvement of the lymphatic system of the penis, probably related to a prolonged period of sexual excitement.