Hard skin on the back of the neck and shoulders

Introduction Adult patients with scleredema often develop symmetrical symmetrical diffuse skin on the posterior neck and shoulders within a few days to 6 weeks after acute febrile illness. Adult scleredema is a rare disease characterized by the sudden onset of diffuse symmetrical skin stiffness. It occurs mostly after infectious diseases and can be relieved by itself after several years.

Cause

The cause is unknown. According to most patients, after infections (including pharyngitis, impetigo, cellulitis, measles, mumps, etc.), more than half of them are Streptococcus infections. Whether the disease is a manifestation of allergic reaction, or an autoimmune process, or a toxic disorder caused by microbial toxins in the matrix is still controversial, and the exact cause remains to be studied.

an examination

Related inspection

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According to the skin lesions, they are often applied to the back neck or shoulders, and rapidly develop to the face, chest, back, upper arm, etc., and the progressive symmetry diffuse skin becomes hard, without atrophy, inflammation, pigmentation and hair loss. The local feeling is normal and the diagnosis can be determined.

Differential diagnosis

The disease mainly needs to be differentiated from scleroderma. The initial scleroderma is more common in the face and distal extremities. The skin color is darkened or mixed with hypopigmentation, sweat glands, sebaceous gland dysfunction, mane detachment, Raynaud's phenomenon. common. Histopathology showed epidermal atrophy, collagen fiber irregular hyperplasia, swelling, homogenization, and hyaline degeneration. Eosin and Masson 3 color staining was extremely deep, inflammatory cells infiltrated more, and appendages were atrophied, progressively aggravated, difficult ease.

According to the skin lesions, they are often applied to the back neck or shoulders, and rapidly develop to the face, chest, back, upper arm, etc., and the progressive symmetry diffuse skin becomes hard, without atrophy, inflammation, pigmentation and hair loss. The local feeling is normal and the diagnosis can be determined.

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