Splenic infarction
Introduction
Introduction to splenic infarction Spleen infarction refers to a hemorrhagic zone around the anemia infarct lesion when the spleen is congested. Infarct lesions are often multiple, showing a wedge-shaped distribution of the tip toward the spleen. Sometimes spleen infarction can also be associated with intrasplenic hemorrhage. The diseases causing spleen infarction are often diseases such as mitral valve disease, myeloproliferative diseases, arteritis, splenic aneurysms, and arteriosclerosis. When there is splenomegaly caused by portal hypertension, etc., spleen infarction is more likely to occur. basic knowledge The proportion of illness: 0.005%-0.008% Susceptible people: no specific population Mode of infection: non-infectious Complications: congestive splenomegaly
Cause
Cause of spleen infarction
Disease factor
The diseases causing spleen infarction are often diseases such as mitral valve disease, myeloproliferative diseases, arteritis, splenic aneurysms, and arteriosclerosis. When there is splenomegaly caused by portal hypertension, etc., spleen infarction is more likely to occur.
Prevention
Spleen infarction prevention
1. Actively treat infectious diseases and strengthen antibiotic treatment;
2, for abdominal trauma, especially the spleen is blunt or penetrating injury, should be debrided as soon as possible, anti-infection.
Complication
Splenic infarction complications Complications Congestive splenomegaly
In the case of spleen congestion, there is a bleeding zone around the anemia infarct. Infarct lesions are often multiple, showing a wedge-shaped distribution of the tip toward the spleen. Sometimes spleen infarction can also be associated with intrasplenic hemorrhage.
Symptom
Symptoms of spleen infarction common symptoms splenomegaly upper left abdominal pain
Some patients have no clinical symptoms and can also cause left upper abdominal pain.
Examine
Spleen infarction
Laboratory tests include ultrasonography and CT examination of the spleen.
Diagnosis
Diagnosis of spleen infarction
1, ultrasound performance
The spleen may be enlarged or deformed. The lesions are often close to the leading edge, varying in size, wedge-shaped or not shaped, and the internal echo is uneven, which may be a low echo or no echo zone, or a scattered strong echo.
2, CT performance
1 Infarcts occur mostly in the direction of the spleen at the anterior edge of the spleen and low-density areas during the plain scan.
2 The infarct is triangular or wedge-shaped, with the outer edge of the spleen at the bottom. The tip faces the spleen.
3 enhanced scan display is more clear. The spleen density is increased and the infarct is not enhanced, the contrast is better.
4The spleen infarction showed a low-density area in the acute phase (8 days ago) and did not strengthen; in the chronic phase (15-28 days), the density gradually returned to normal. Because of scar tissue, scar contraction can cause contraction and deformation of the spleen. .
5 If the entire spleen is infarcted, the whole spleen is not enhanced when the scan is enhanced, and only the spleen envelope is enhanced.
Characteristics: The spleen infarction has a high degree of incurable tendency to be characterized.
Differential diagnosis
Need to identify with spleen lymphoma, spleen tuberculosis.
