The difference between uterine fibroids and uterine sarcomas

Uterine fibroids and uterine sarcomas are two types of uterine tumors with completely different properties. The former are mostly benign, while the latter are malignant tumors. Uterine fibroids are mainly formed by the proliferation of smooth muscle cells, grow slowly and rarely become malignant ； Uterine sarcoma originates from uterine mesenchymal tissue and is aggressive and has the risk of metastasis.

1. Pathological properties

Uterine fibroids are benign tumors with pathological manifestations of orderly proliferation of smooth muscle cells, surrounding pseudocapsule formation, and small cell atypia. Uterine sarcoma is a malignant tumor. Pathology shows disorderly proliferation of sarcoma cells derived from mesenchymal tissue, active mitotic figures, and often accompanied by necrosis and infiltrative growth.

2. Growth characteristics

Uterine fibroids grow slowly, with most diameters ranging from 1 to 10 centimeters and rarely exceeding 15 centimeters. They may temporarily increase in size during pregnancy. Uterine sarcoma grows rapidly, significantly increases in size in a short period of time, and easily breaks through the uterine serosa layer and infiltrates into surrounding tissues.

3. Clinical manifestations

Uterine fibroids commonly cause compression symptoms such as increased menstrual flow, prolonged menstruation, and frequent urination. Some patients are asymptomatic. Uterine sarcoma may be asymptomatic in the early stage, but may present systemic symptoms such as abnormal vaginal bleeding, rapid increase in lower abdominal mass, weight loss, and anemia in the advanced stage.

4. Imaging characteristics

In ultrasound examination, uterine fibroids have clear borders, uniform echoes, and less blood flow signals. Uterine sarcomas often show ill-defined mixed echogenic masses with rich blood flow signals, and color Doppler shows high resistance blood flow spectrum.

5. Treatment methods

Asymptomatic uterine fibroids can be observed and followed up, and those with obvious symptoms can undergo myomectomy or hysterectomy. Uterine sarcoma requires radical hysterectomy combined with pelvic lymph node dissection, followed by radiotherapy and chemotherapy according to pathological staging. Commonly used chemotherapy drugs include doxorubicin hydrochloride for injection and ifosfamide for injection.

Regular gynecological examinations can help detect uterine tumors early. If symptoms such as abnormal vaginal bleeding and pelvic mass occur, you should seek medical treatment promptly and avoid blindly taking hormone drugs. Maintain a regular schedule and a balanced diet, control your weight within a normal range, and reduce the intake of high-estrogen foods.