The utility of PRAME staining in identifying malignant transformation of melanocytic nevi.

Background: PReferentially expressed Antigen in MElanoma (PRAME) immunohistochemical (IHC) staining is used to aid melanoma diagnosis. PRAME expression in nevus-associated melanoma (NAM) has not been evaluated.

Methods: PRAME IHC was applied to cases of NAM; staining for each population of melanocytes (benign and malignant) was graded based on the percentage of labeled cells.

Understanding the cost of dermatologic care: A survey study of dermatology providers, residents, and patients.

Background: The American Academy of Dermatology recommends dermatologists understand the costs of dermatologic care.

Objective: This study sought to measure dermatology providers' understanding of the cost of dermatologic care and how those costs are communicated to patients. We also aimed to understand the perspectives of patients and dermatological trainees on how cost information enters into the care they receive or provide.

Bullous Kaposiform Hemangioendothelioma Masquerading as Aplasia Cutis Congenita.

We present the case of a male infant with violaceous bullae on the scalp that were initially thought to be bullous aplasia cutis but at 3 months of age were diagnosed as a kaposiform hemangioendothelioma. This diagnosis should be considered when evaluating newborns with bullous plaques on the scalp that do not heal in the first 2-3 weeks of life. Kaposiform hemangioendothelioma (KHE) is a rare vascular tumor that typically presents as a violaceous to purpuric plaque at birth or early infancy.