Christmas Tree Pattern Skin Lesion

Pityriasis rosea commonly affects the skin on your trunk, arms or legs. A variant called inverse pityriasis rosea can affect the skin on your neck, face, armpits (axillae) and groin, though it isn't common. Your skin may develop discolored patches (lesions) that look like scales or dry, crinkly paper.

The patches may itch. Pityriasis rosea patches and plaques usually follow the relaxed skin tension lines or cleavage lines (Langer lines) on both sides of the upper trunk. The rash has been described as looking like a Christmas tree in distribution.

Worsening of the rash or a second wave of lesions is not uncommon before eventual spontaneous resolution of the eruption. Christmas tree rash, or pityriasis rosea, is an oval-shaped skin patch that can appear on different parts of your body. Here's how to identify it and what to do if you have it.

Pattern analysis of skin lesions is an art and a key competence of every dermatologist. Three major line patterns cover the human body-the dermatomes or Head zones, the nevoid lines of Blaschko, and the relaxed skin tension lines, or Langer lines. Head zones represent skin areas innervated from the same sensory neuronal segment or spinal nerve.

The individual lesions form a symmetrical "Christmas tree" pattern on the back with the long axis of the ovals oriented in the "Lines of Blaschko" (invisible skin lines of embryonic origin). This pityriasis rosea rash is usually limited to the trunk, arms, and legs. Pityriasis rosea usually spares the face, hands, and feet.

Pityriasis rose: A benign rash is a common skin disorder evolving rapidly. Learn its symptoms, causes & treatment options. Pattern analysis of skin lesions is an art and a key competence of every dermatologist.

Three major line patterns cover the human body-the dermatomes or Head zones, the nevoid lines of Blaschko, and the relaxed skin tension lines, or Langer lines. Head zones represent skin areas innervated from the same sensory neuronal segment or spinal nerve zone. Blaschko lines are borderlines of.

Pityriasis rosea is often recognized by a distinctive "herald patch"-a single, round or oval lesion that appears on the chest, back, or neck. A few days to two weeks later, more smaller lesions appear, creating a characteristic "Christmas tree" pattern along the skin. What Causes Pityriasis Rosea?

Get an overview of Christmas tree rash. The rash can form diagonal stripes down your back like the branches of a Christmas tree. The patches may itch, especially if your skin gets warmer during exercise or a hot shower.

You may also feel tired and achy. Some of these symptoms can be caused by other health conditions. Make sure to see your healthcare provider for a diagnosis.