What is the cause of fetal mesenteric cysts?

Many female friends often go to the hospital for B-ultrasound examinations when they are pregnant, and they often find that there may be cysts on their clothes. The cause of hydronephrosis in most fetuses and newborns is actually the same. They are all relatively benign processes, but there are also a few malignant results. You said that there is some water accumulation, so what should be done with fetal mesenteric cysts?

Mesenteric cysts and tumors are uncommon in clinical practice. Cysts may be congenital developmental abnormalities, such as enterogenic cysts, mesocolonic serous cysts, dermoid cysts, etc. In addition, there are parasitic cysts, traumatic cysts (hemorrhagic cysts, inflammatory cysts), etc. Most tumors are solid tumors, which can be benign or malignant. Malignant tumors account for about 60% of solid tumors. Serous cysts are covered with mesothelial cells and generally occur in the transverse colon mesentery and sigmoid colon mesentery. The cysts vary in size, from a few centimeters to 20 centimeters, and most are single-chamber cysts. Mesenteric cysts often have complete capsules. Isolated cysts can be removed by cystectomy. If the cyst is closely related to the intestine or tightly adhered to the mesenteric blood vessels, it can be removed together with part of the small intestine. When patients seek medical treatment for malignant tumors, they are often no longer in the early stages of the disease, have a low rate of radical resection, and have a very poor prognosis.

The diagnosis is mainly based on clinical manifestations. X-rays are helpful in confirming findings during physical examination but are primarily used to exclude other disorders that may require different treatment. Abdominal X-rays, gastrointestinal barium meals, barium enema, and intravenous pyelography can show intestinal ileus or normal structures that are squeezed and displaced by abdominal masses. Fever calcification foci can indicate the location of the lesion. If the intestinal wall is stiff and barium has difficulty passing through, there may be a malignant tumor. Lymphangiography may not demonstrate cysts because lymphangiomas usually have no connections with adjacent lymphatic vessels.

Fetoscopic surgery can help with diagnosis. In addition, fetoscopic surgery can also be used to drain urine and reduce the risk of urethral congestion after hysterectomy. Intrauterine surgery for hydronephrosis is an experimental technique that can greatly improve the survival rate and reduce the mortality rate of the fetus during surgery.