Compliance with follow-up among patients with melanoma and non-melanoma skin cancers.

Background: A history of cutaneous malignancies puts patients at an increased risk of developing additional skin cancers, but there is little data available regarding compliance with any recommended follow-up regimens.

Purpose: To report on compliance with physician recommended follow-up regimens among patients diagnosed with melanoma and non-melanoma skin cancers.

Methods: 105 patients with cutaneous melanoma and 1151 patients with non-melanoma skin cancers diagnosed between December 1996 and December 2001 were identified through biopsy records.

Eccrine porocarcinoma.

Eccrine porocarcinoma (EPC) is a rare cutaneous neoplasm that grows slowly over a long period of time but often experiences an accelerated growth phase. This malignant tumor may arise denovo or evolve from a pre-existing benign eccrine poroma. Histologic evaluation demonstrates anaplastic cells involving the epidermis and infiltrating the dermis.

Case reports: type I hypersensitivity to lidocaine.

Lidocaine hydrochloride is the most commonly used anesthetic agent in dermatology. Despite its widespread and frequent use, adverse reactions to lidocaine are uncommon. The majority of side effects include vasovagal reactions and local side effects consisting of bruising and edema at the injection site.