striped moss
Introduction
Striped moss The lichenstriatus, also known as linear moss, is a self-limiting skin inflammation of unknown cause. It occurs mostly in children between the ages of 5 and 15 and can also be found in infants and adults, with slightly more women than men. The symptoms are not obvious, and a few patients have mild itching. If it occurs in the baby's diaper area, it is itchy. basic knowledge The proportion of illness: the incidence rate is about 0.002% - 0.004% Susceptible people: no specific population Mode of infection: non-infectious Complications: cleft lip
Cause
Striped moss cause
Causes:
The cause is not yet clear. It is thought to be related to spinal nerve dysfunction. Trauma or local compression may be the cause of the disease, and whether it is related to viral infection, it has not been confirmed.
Pathogenesis:
The pathogenesis is unclear and is thought to be related to spinal nerve dysfunction, local compression, and viral infection mechanisms.
Prevention
Striped moss prevention
Remove possible triggers and avoid local irritation.
Complication
Striped moss complications Complications
Currently there are no related content description.
Symptom
Streaky mossy symptoms Common symptoms Itchy scaly papules pigmentation loss
It occurs mostly in children aged 5 to 15 years old. It can also be seen in infants and adults. Females are slightly more than males. The rash occurs suddenly. It is normal skin color or grayish white at the beginning of hair. It is about a large needle to a large miliary, polygonal or round flat. Pimples, slightly shiny on the surface, covered with a small amount of scaly, increased papules during the course of the disease, dense, continuous or intermittent, stripy or linear arrangement of length and width, rash is mostly unilateral, bilateral is rare Sometimes, the skin lesions can be extended to the same length as the limbs, and more along the blood vessels, nerves are distributed, the skin lesions occur in the neck, the limbs, especially the upper limbs are more common, can also be seen in the abdomen, buttocks or torso, the symptoms are not Obviously, a small number of patients have mild itching. If it occurs in the diaper area of the baby, it is itchy and the course is chronic. Usually, after a few weeks or months of rash, it can resolve itself. After the skin returns to normal, or leave a temporary pigment. The spot is reduced, and a few delays are longer.
Examine
Striped moss inspection
Histopathology: The epidermis has keratosis with varying degrees of severity, no acanthosis, and some large keratinocytes with eosinophilic keratosis are visible, similar to round cells of follicular keratosis, but small in size, nipple There is dense chronic inflammatory cell infiltration around the lower blood vessels, which can extend to deep blood vessels.
Diagnosis
Diagnosis and identification of striped moss
Occurred in children aged 5 to 15 years old, the rash suddenly occurred, the initial color is normal skin color or grayish white, about the cap needle is large to miliary, polygonal or round flat papules, the surface is slightly shiny, covered with a small amount of scales, the course of disease The papules are dense, dense, continuous or intermittent, and have a stripe or line arrangement of different lengths and widths. The rash is mostly unilateral, and the bilateral sides are rare. Sometimes the lesions can be extended to be as long as the limbs. Along the blood vessels, nerve distribution, skin lesions occur in the neck, limbs, especially the upper limbs are more common, can also be seen in the abdomen, buttocks or torso, tissue pathological changes, can be diagnosed.
Differential diagnosis
1. Linear lichen planus is difficult to identify clinically. Lichen planus is common in adults. The skin lesions are purple-red, the surface is wickham, and there is a homomorphic reaction. The histopathology shows that the dermis has a band-like infiltration and basal cell layer. Liquefaction denaturation.
2. Although the linear psoriasis arrangement is banded or striped, there is a typical psoriatic lesion and the histopathology is easy to identify.
3. Epidermis often occurs after birth, the rash is hard and horny verrucous, histopathological features are hyperkeratosis, thickening of the spinous cell layer, papillary hyperplasia.
