Pelvic inflammatory disease is an infection of the upper female genital tract including the uterus, fallopian tubes, and ovaries, typically ascending from the cervix. Transvaginal ultrasound identifies tubo-ovarian abscess (TOA), pyosalpinx, and free pelvic fluid. The cogwheel sign on cross-section and incomplete septa in a fluid-filled tube are characteristic sonographic features of PID.
ICD-10 Code: N73.0 | MeSH ID: D000292 | Primary Anatomy: Uterus, Fallopian Tubes, Ovary
Key Reference: PubMed: PMID: 11917272