Unusual association between acrokeratosis verruciformis of Hopf and multiple keratoacanthomas. Successful therapy with acitretin.

A 62-year-old man presented with the unusual association of acrokeratosis verruciformis of Hopf and multiple keratoacanthomas. Both conditions were treated successfully with acitretin.

Vascular structures in skin tumors: a dermoscopy study.

Objectives: To describe the different vascular structures seen by dermoscopy and to evaluate their association with various melanocytic and nonmelanocytic skin tumors in a large series of cases.

Design: Digital dermoscopic images of the lesions were evaluated for the presence of various morphologic types of vessels.

Setting: Specialized university clinic.

Three-point checklist of dermoscopy. A new screening method for early detection of melanoma.

Background: Dermoscopy used by experts has been demonstrated to improve the diagnostic accuracy for melanoma. However, little is known about the diagnostic validity of dermoscopy when used by nonexperts.

Objective: To evaluate the diagnostic performance of nonexperts using a new 3-point checklist based on a simplified dermoscopic pattern analysis.