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Cystic changes

Introduction
Cause
Examine
Diagnosis

Introduction

Introduction Most of them are caused by abnormalities such as mucosal function and cause cystic changes in tissues. For example, cysts caused by infection stimuli (such as periodontal cysts that occur in the maxilla) are caused by cystic changes in the apical granulation tissue after infection or injury. Most of the cysts have a rounded shape and the surface of the skin is semi-circular. Generally located in the dermis and subcutaneous tissue. Because of the wall wrapping, the edges are smooth and tidy, and there is less adhesion to the surrounding tissues. Therefore, the touch is smooth and elastic, and the sac is sexy. The surface of the skin is mostly free of inflammation, and it has a normal skin color. General development of limited nature will not infinitely expand the symptoms of local compression.

Cause

Cause

Congenital hereditary

1. Hair root sheath cyst: In the past 114 degrees, the adenoid cyst was autosomal dominant.

2. Multiple lipocytoma: autosomal dominant inheritance.

3. Dermoid cysts: for congenital birth.

4. Bronchial origin and thyroid gland tube cysts are caused by congenital dysplasia.

5. The penile midline cyst is caused by congenital dysplasia.

6. The cause of rash carbon hair cysts is unclear and some reports are considered autosomal dominant inheritance.

Two reasons for uncertainty

1. New liquid cysts.

2. Mildew rash: primary causes of unexplained secondary are more common in epidermal sputum stagnation, congenital ectodermal defects, delayed skin dermatosis after skin grinding.

3. Epidermal cyst: The cause is unknown.

Examine

an examination

Related inspection

CT examination CT plain CT scan otolaryngography CT examination

1, proteinuria: the general amount is not much, 24 hours of urine will not exceed 2g. More than no kidney disease syndrome.

2, high blood pressure: solid cysts oppress the kidneys, causing renal ischemia, increased renin secretion, causing high blood pressure. When kidney function is normal, more than 50% of patients have hypertension, and the incidence of hypertension is higher when renal dysfunction occurs.

3, renal dysfunction: due to cyst occupying, oppression, the normal kidney tissue decreased significantly, renal function progressive decline.

4, the case of excessive kidney deficiency and renal function decline, light individual cysts redness and inflammation, heavy systemic cyst itching and inflammation. Should pay attention to rest and fitness, and sexual intercourse should not be too frequent.

Diagnosis

Differential diagnosis

Most of the cysts have a rounded shape and the surface of the skin is semi-circular. Generally located in the dermis and subcutaneous tissue. Because of the wall wrapping, the edges are smooth and tidy, and there is less adhesion to the surrounding tissues. Therefore, the touch is smooth and elastic, and the sac is sexy. The surface of the skin is mostly free of inflammation, and it has a normal skin color. General development of limited nature will not infinitely expand the symptoms of local compression.

First, located in the dermis

1. Department of liquid-like cysts: more than 40-50 years old female skin lesions occur in the distal side of the distal knuckles, more than a single. The size is about 3-15m, translucent, smooth: soft, the skin color cyst cavity is my fluid, which is scattered with stellate fibroblasts.

2. Mildew rash : more common in women of any age, the cause is unknown; secondary occurs in the large hernia epidermolysis, congenital ectodermal defect, delayed skin skin grinding Rear. Primary skin lesions occur in the eyelids and ankles; secondary lesions occur in the auricles of the hands and forearms. The size of the miliary is hard and hard, and the white sebum is seen.

3. Hair root sheath cyst: In the past, it was more common in middle-aged women called sebaceous gland cysts, which occurred in the head and was not easily distinguished from epidermal cysts. The latter was common in the face and neck. The wall of the disease is composed of squamous epithelium, similar to the isthmus cells of the hair follicle. The content of the cavity is eosinophilic.

4. Multiple lipoma: can occur in men and women of all ages. Skin lesions occur in the middle and lower part of the chest, and the scrotum can be single or multiple, showing a normal skin color or yellow, ranging from a few millimeters to 1-2 cm in diameter, and the small one is slightly hard. The contents of the cavity are oily or cheese-like.

5. Epidermal cyst: more common occurs in young people, children, old age is rare in diameter 0.5-5cm, normal skin color, round elastic, slightly hard. The wall of the capsule is filled with keratin in the normal skin cavity. It can be single or multiple, often occurring on the scalp face, neck and trunk.

6. Bronchial origin and thyroid gland tube cysts are congenital dysplasia more common in the anterior or anterior neck of the sternum. Shortly after birth, more single lesions are less common, often accompanied by thin tubes. The performance of the two is similar to the composition of the pseudo-stratified columnar epithelium. It can be seen that the epithelial cells are ciliated in the human cyst.

7. Penile midline cyst: It is more common in young people and children. The lesion is located on the ventral side of the penis, especially the midline of the glans is about a few millimeters in diameter. The wall of the capsule is a pseudo-stratified epithelium, and some of the epithelial cytoplasm is transparent.

8. Eruptive hairy cysts: more common in children and young people are small follicular cysts, the size is 1-2mm. The surface may have ecstasy and umbilical fossa common in the chest, and also visible in the limbs, the squamous epithelium of the posterior capsule wall, and the lamellar keratin and hair. The wall of the capsule forms a hair follicle-like structure.

Second, located in the subcutaneous tissue

Dermoid cysts: there are more singles after birth. Skin lesions are often located in the midline of the eye and the back of the face, which can occur everywhere on the body surface. The wall of the capsule not exceeding 2 cm in diameter consists of stratified squamous epithelium, but is different from epidermal cyst. The cyst cavity contains various epidermal appendages such as hair, and the hair follicles protrude into the human cavity.