What s the deal with the accessory spleen, is the accessory spleen good or bad? Why does it happen?

There is no good or bad side of the paraspleen, there is no good or bad to the human body, and it has no effect on the body in general. Accessory spleen is a malformation formed by the human body during the development of the placenta, which is caused by congenital development.

Accessory spleen is a manifestation of congenital abnormal spleen development. It is the growth of spleen-like tissue in addition to the spleen. Surgical excision is required. This is not a good sign.

Accessory spleen refers to a congenital ectopic spleen tissue that exists outside the normal spleen and is structurally similar and functionally identical to the spleen.

Accessory spleen is less rare, occurring in about 10% to 30% of cases. Most accessory spleens are present near the hilum of the spleen, and in some cases also occur near the splenic pedicle or splenic vessels, or the tail of the pancreas. The accessory spleen is an important tissue structure because in some cases, such as when the patient has a traumatic splenic rupture and needs to have the spleen removed, the preservation of the accessory spleen is important for the patient.

Causes and diagnosis of accessory spleen1. The accessory spleen is caused by congenital dysplasia.

2. Failure of primitive splenic-bud fusion during embryonic development.

3. Ectopic splenic bud formation during embryonic development.

4. During embryonic development, part of the spleen bud is separated from the main spleen.

The main tests to confirm the diagnosis of accessory spleen are abdominal ultrasound, abdominal CT and other imaging examinations. The interior is a uniform fine punctate echo, and the echo intensity is similar to that of the main spleen, and the boundary with the main spleen is clear. The accessory spleen appeared round or quasi-circular in the thin-slice CT of the abdomen, with clear boundaries and uniform density, and was significantly uniformly enhanced after enhancement, and the density of the main spleen was similar to that of the main spleen on noncontrast and contrast-enhanced scans.

Accessory spleen refers to spleen tissue that exists outside the normal spleen, is similar to the main spleen in structure, and has a certain function, with an incidence of more than 10% to 30%.

A congenital dysplasia of the spleen, which is located outside the normal spleen but has the same functional imaging as the normal spleen, or incidental finding of the accessory spleen during abdominal surgery, confirms the diagnosis. Generally, there is no need for **, and the lesion can be surgically removed.

Accessory spleen refers to the presence of a normal spleen that is structurally similar to a normal spleen and functions normally. The cause may be due to the failure of the splenic primordium fusion of the dorsal mesangium of the dry stomach at the 5th week of embryonic position.

Accessory spleen is more than a dry spleen phylum, spleen pedicle or pancreatic tail, and a few are dry spleen and stomach, spleen colon, spleen sauce ligament, and omentum. Most of them are spherical and can be single or multiple. It has separate arteries and veins, ranging in diameter from a few millimeters to several centimeters.

The meaning of paraspleen is as follows:

Accessory spleen is a physiological change formed by abnormal development of the spleen, which is more likely to occur at a younger age, and generally does not need to be special. Usually from the occurrence mechanism, location, symptoms of the accessory spleen, etc., if the body due to the accessory spleen abnormal manifestations, should be timely medical examination, and the corresponding **.

1. Mechanism of occurrence: Accessory spleen refers to the formation of organs similar to the normal spleen structure and function when one or several mesenchymal cell masses cannot be fused with the spleen, and the blood supply of the accessory spleen mainly comes from the splenic artery, and no abnormal changes occur in most cases.

2. Location: It is more common in the position of the hilum of the spleen, but it can also appear in the spleen pedicle, omentum and other parts, or distal metastases to the mesentery, ovary and other parts.

3. Symptoms: Most of them have no symptoms. There is also the possibility of abnormal lesions such as rupture, hemorrhage, hyperplasia, infarction, etc., which are manifested as hemolytic anemia symptoms such as headache, fatigue, jaundice, splenomegaly, and fever.

Episplenic hyperplasia, rupture, or bleeding may cause symptoms of hypovolemia such as vague epigastric pain, rapid pulse, and dizziness. When the parasplenic is embolized or infarcted, it is manifested as severe epigastric pain that may radiate to the left shoulder, or accompanied by symptoms such as nausea and vomiting.

4. Examination: The accessory spleen is generally found incidentally during ultrasound examination or surgery of other abdominal organ diseases. CT shows round or oval nodules, resembling lymph nodes. MRI can help distinguish the accessory spleen from other abdominal masses.

5. **: Asymptomatic accessory spleen usually does not need to be a**, such as intestinal obstruction, splenic rupture and bleeding and other complications, surgical resection should be taken**. In addition, because the blood supply of the accessory spleen is to the splenic artery, if the blood system disease causes hypersplenism, the accessory spleen and spleen need to be removed together, and in other cases, the accessory spleen can usually be retained to replace the spleen to exert spleen function.