lipoma

A benign tumor formed by hyperplastic mature adipose tissue. More common in adults aged 40 ~ 50. The tumor is soft; Round or lobulated; It is located under the skin and can be pushed. Tumors vary in size, as small as dates, and can only be touched by hand. Large tumors can make the skin surface bulge, but the surface skin is normal. Single or multiple tumors can be found anywhere on the body surface, especially on the shoulders, back and abdomen. There are many unconscious symptoms. Angiolipoma is a special type of lipoma, which is more common in young people. It mainly occurs in the lower limbs, and you can feel pain and tenderness when you touch it. Histopathological examination showed that most of the hyperplastic blood vessels were seen in the tumor except for a large piece of mature fat cells, and the boundary of the whole tumor was clear Lipomas rarely become cancerous and generally do not need treatment; If the tumor is large, it affects the activity, or it suddenly increases or ruptures in the near future, it should be surgically removed.

abstract

Lipoma is a benign tumor, which mostly occurs under the skin. There is a thin connective tissue cyst around the tumor, which contains normal fat cells divided into small Ye Qun by connective tissue bundles. Some lipomas contain not only a lot of adipose tissue, but also more connective tissue or blood vessels in structure, that is, complex lipomas are formed.

Lipoma is composed of mature adipose tissue, which is more common in children than fibroma and can occur anywhere in the body with fat. Lipoma has a thin fibrous intima and many fibrous cords, which form many gaps vertically and horizontally. Lipoma is most common in the subcutaneous tissue of neck, shoulders, back, buttocks, breast, limbs, face, scalp, scrotum and labia, followed by retroperitoneum and gastrointestinal wall. Very few can appear in tissues that are originally fat-free. If there is a large proportion of fibrous tissue in the tumor, it is called fibrolipoma.

Etiology of lipoma

There is a thin connective tissue cyst around the tumor, which contains normal fat cells divided into small Ye Qun by connective tissue bundles. Some lipomas contain not only a lot of adipose tissue, but also more connective tissue or blood vessels in structure, that is, complex lipomas are formed.

Lipoma symptoms

This tumor usually occurs in the shoulders, back, buttocks and inner thighs, and head diseases are also common. Lipomas located in subcutaneous tissue vary in size, most of which are oblate or lobulated with clear boundaries; People with unclear boundaries should beware of the possibility of malignant lipoma. Tumors are soft and elastic (note that they are different from larger cysts), and some may have the illusion of fluctuation. The tumor is not attached to the epidermis, the skin surface is completely normal and the base is extensive. When checking, press the base of lipoma tightly with your hand, and you can see lobulation. "Orange peel" may appear on the skin. Tumors develop slowly, most of them have no serious adverse effects on the body, and rarely become malignant.

In addition, there is another kind of multiple round or oval nodular lipoma, which is common under the skin of limbs and waist and abdomen. Tumors vary in size and number, are slightly harder than ordinary lipomas, and are painful when pressed, so they are called painful lipomas or multiple lipomas. Lipoma is a tumor of normal adipose-like tissue, which usually occurs in limbs and trunk, and generally has no pain and other discomfort. Lipoma grows slowly, and multiple lipomas are generally small in size and soft in texture, and may have a false cystic feeling. Lipoma often occurs in multiple sites and has a family history. If there are no obvious symptoms, you can leave it alone. Surgical resection is needed only when the following conditions occur and there is a possibility of malignant transformation: local pain and discomfort; The tumor seriously affects the appearance or the tumor affects the limb movement function; The growth of tumor is accelerated and enlarged, which is suspected to be malignant; Solitary lipoma grows at a deeper site.

Lipoma is not liposarcoma. Lipsarcoma is a kind of tumor with high malignant degree, which grows rapidly, has a large tumor body and hard texture, and is mostly single.

Supplement:

Principles of treatment

1. Small (diameter 1cm), multiple lipomas, generally do not need treatment. The big one should be removed by surgery.

accessory examination

1. The diagnosis of this disease is mainly based on symptoms and physical examination. Especially the surface features of tumors. 2. In order to distinguish it from other diseases, the examination items may include a check box "b".

Curative effect evaluation

Cure: The tumor was completely removed without recurrence.

Complications of lipoma surgery

1, anesthesia accident, leading to respiratory and cardiac arrest, life-threatening.

2. Injury to the surrounding blood vessels during the operation leads to massive bleeding and life-threatening.

3. "syndrome" after lipoma resection: a series of clinical symptoms, and the incidence of complications is about 20-30%. Specific symptoms include indigestion symptoms such as intractable diarrhea, abdominal distension, nausea, vomiting, and aversion to oil, as well as malnutrition symptoms such as general weakness, pale face, and listlessness. At present, there is no effective treatment for such complications.

4. Injury to adjacent organs during the operation leads to impairment of corresponding organ functions, which can lead to fatal consequences in severe cases.