Diffuse neonatal hemangiomatosis: an evidence-based review of case reports in the literature.

Background: The term "diffuse neonatal hemangiomatosis" has been used historically to describe multifocal vascular lesions affecting the skin and viscera in infants.

Objective: We hypothesized that many cases reported as diffuse neonatal hemangiomatosis did not have infantile hemangiomas (IH), but represented more recently described neonatal vascular diseases.

Methods: A literature search was performed using PubMed database (1950-2009) with the terms "neonatal hemangiomatosis," "benign hemangiomatosis," and "diffuse hemangiomatosis.

Nevus simplex: a reconsideration of nomenclature, sites of involvement, and disease associations.

Background: Nevus simplex (NS) is a common birthmark on the forehead, glabella, upper eyelids, and nape. More widespread involvement can be confused with port-wine stains (nevus flammeus) and other vascular birthmarks.

Objectives: To further categorize the anatomic locations in infants with extensive NS and evaluate for any possible disease associations.

Allergic contact dermatitis from cigarettes.

Cigarettes are widely known to contain potent carcinogens, and their smoke contributes to many chronic and potentially fatal diseases. Cigarettes may also represent an underreported and underrecognized cause of allergic contact dermatitis (ACD). Potential allergens from cigarettes can be found in the filters, paper, and tobacco.