Pelvic effusion with a cystic mass in the right adnexal area

Patient's question:

On October 15th, I had an abortion without anesthesia. The follow-up ultrasound report on November 18th showed: the uterus is in an anterior position, with a size of approximately 4.4cm 3.7cm 4.0cm, homogeneous, no definite observed, and CDFI: no abnormal blood flow signals detected within the. The endometrial thickness is 0.7cm. A 2.5cm anechoic area was detected in the uterosacral fossa. A 1.2cm 1.3cm cystic area was observed in the right adnexal region, while the left adnexal region showed no obvious abnormal. I haven’t had my period yet, and since the afternoon of the 19th, I’ve been experiencing lower abdominal pain similar to dysmenorrhea. What could be the cause? Please help me speculate on the possible cause and solutions. Thank you.

Doctor's answer:

Pelvic effusion is divided into two types: 1. Physiological pelvic effusion, generally less than 10mm, often occurs after menopause or in early pregnancy, and can usually disappear naturally without the need for treatment. 2. The majority of pelvic effusions are caused by inflammation, specifically due to chronic pelvic inflammatory exudation. A very small number are caused by conditions such as ectopic pregnancy rupture, corpus luteum rupture, pelvic abscess, chocolate cysts, or ovarian cancer. Those caused by acute or chronic pelvic inflammation are often accompanied by lower abdominal pain (unilateral or bilateral), lumbosacral pain, and a history of induced or medication-induced abortion. It is recommended that you visit a regular hospital's gynecology department for further examination to confirm the diagnosis and receive symptomatic treatment.

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