sebaceous hyperplasia
Introduction
Introduction to sebaceous gland hyperplasia Sebaceous gland hyperplasia, also known as senile hyperplasia of sebaceous glands (senilehyperplasiaofsebaceousglands) is a benign tumor caused by the increase of normal sebaceous glands in the elderly skin, also known as senile sebaceous gland or adenoma-like sebaceous gland hyperplasia, more common in the elderly over 50 years old. The main facial expression of the concave yellow pimples on the frontal surface, when affecting the appearance, feasible surgery or non-surgical treatment. basic knowledge The proportion of illness: 0.025% Susceptible people: more common in middle-aged and older people over 50 years old Mode of infection: non-infectious Complications: papillary sweat gland adenoma
Cause
The cause of sebaceous gland hyperplasia
Increased sebaceous glands (30%)
Increased normal sebaceous glands of the skin. Microscopically, the skin lesions are mainly composed of one or several hypertrophic sebaceous glands. The central duct of the sebaceous gland is short and thick, and the epidermis is opened in the central depression of the lesion. The sebaceous glands of the lobe are visible, and the sebaceous glands are clustered. The sebaceous gland cells are mature or close. mature.
Trauma (30%)
The skin around the skin is damaged by skin, muscle, and tissue caused by the impact of external objects, collision or chemical attack, and the sebaceous glands are proliferated by repeated random stimulation.
Inflammatory stimuli (30%)
Local chronic inflammatory stimuli may be associated with skin lesion formation. Can also cause sebaceous gland hyperplasia.
Prevention
Sebaceous gland hyperplasia prevention
The cause of the disease is not clear, so it is impossible to prevent the cause of the disease. At present, it is believed that this disease has a certain relationship with excessive eating of greasy food. Therefore, it is necessary to reduce the intake of high-fat foods, eat more vitamins and vegetables such as vegetables and fruits, appropriately increase exercise, control body weight to reduce BMI, and also help to reduce The attack rate of this disease. Patients with infections on the skin should be treated aggressively to reduce the occurrence of serious complications.
Complication
Sebaceous gland hyperplasia complications Complications papillary sweat gland adenoma
Papillary sweat duct cystadenoma and tubular papillary apocrine adenoma.
Symptom
Symptoms of sebaceous gland hyperplasia common symptoms nodular papules hypertrophy scar
1. Good hair parts: forehead and cheeks.
2. Clinical symptoms: There are scattered, bulging, round papules in the lesions. Sometimes there are often shallow umbilical fossa in the center, which can be filled with keratin, with or without bristles, and the diameter is 2~3mm, which is yellow or yellowish. No symptoms. A small yellow nodule with a slightly concave central portion appeared on the face; the patient had no symptoms.
Examine
Examination of sebaceous gland hyperplasia
Clinical skin examination: There are scattered, bulging, round papules in the lesions. Sometimes there are often shallow umbilical fossa in the center. They can be filled with keratin, with or without bristles, and the diameter is 2~3mm, which is yellow or yellowish. No symptoms. Clinical features The face has a small yellow nodule with a slightly concave central portion.
Histopathological examination: Histological examination showed a group of enlarged sebaceous glands around the hair follicle, a large sebaceous gland duct in the center, surrounded by many mature sebaceous gland leaflets, and the leaflets commonly open to the epidermis.
Diagnosis
Diagnosis and differentiation of sebaceous gland hyperplasia
diagnosis
Clinical features
A small yellow nodule with a slightly depressed central part of the face; no symptoms.
2. Pathological diagnosis
It has the characteristics of sebaceous gland hyperplasia.
Differential diagnosis
Sebaceous gland
Lesions occur at birth or shortly after birth. They are pale yellow or yellowish brown or papillary hyperplasia plaques. There is no umbilical fossa in the center. Histopathological examination is a large number of mature or nearly mature sebaceous glands in the dermis. The catheter is directly connected to the hair follicle funnel, and the epidermis is papillary-like hyperplasia.
2. Booger
The boundary of the lesion is unclear, and the histopathology is characterized by large sebaceous glands and ducts. The unsuppressed sebaceous gland leaves surround the central cystic dilatation catheter, which is unclear with the surrounding tissue, and common foreign body granuloma.
3. In addition, there is still a need for rosacea
Epidermoid cysts, yellow tumors, etc. were identified.
