Christmas Tree Pattern Derma

Pityriasis rosea is a self-limiting rash, which resolves in about 6-10 weeks. It is characterised by an initial large "herald patch" followed by smaller patches resembling a christmas tree. The skin diseases typically following a Christmas tree pattern are limited and essentially comprise pityriasis rosea and mycosis fungoides.

A number of chronic inflammatory or infectious skin diseases may follow a Christmas tree pattern in selected cases. Pityriasis rosea is a rash that can appear anywhere on your body, especially your trunk, arms and legs. Antihistamines and hydrocortisone creams can reduce itching.

November 28, 2023 Janine Mendes-Franco Pityriasis Rosea - or the "Christmas Tree Rash" as it is commonly called, thanks to its distinctive pattern that resembles fir tree branches - is a common, non. The "Christmas tree" orientation of scaling lesions along the skin tension (Langer) lines in pityriasis rosea is well known. This pattern is best appreciated on complete examination of the trunk, in which the eruption follows the long axis of the V-shaped lines of the upper chest and back, emanating around the axillae, and running transversely along the abdominal wall and lower back.

The first mention we could find of the Christmas tree pattern was in a 1956 article written by John T. Crissey (1924-2009) while at the University of Buffalo in New York. 2, 3 Crissey later became a professor of dermatology at the University of Southern California, Los Angeles.

We report the sporadic form of Dowling-Degos disease in an elderly man with multiple seborrheic keratosis in a "Christmas tree" pattern. Worthy of note in this case study is the lesions evolved for over than 30 years. The aim is to describe the association of these keratoses with Dowling.

Other skin diseases may follow a Christmas tree pattern when associated with an isotopic response to a primary skin disease that occurs in a Christmas tree pattern [4]. Here, we describe a case of multiple targetoid lesions following a Christmas tree pattern in a 64. Learn about pityriasis rosea, a harmless skin condition with a unique Christmas tree rash pattern and what to expect during healing.