theca lutein cysts

Full Definition

Theca lutein cysts are large, bilateral ovarian cysts that result from excessive stimulation of theca cells by elevated levels of human chorionic gonadotropin (hCG) or luteinizing hormone. These cysts are commonly seen in cases of ovarian hyperstimulation syndrome, molar pregnancies, or multiple gestations. They typically resolve spontaneously once hCG levels normalize but can cause significant ovarian enlargement and abdominal discomfort during the acute phase.

Usage

Usage note: Always bilateral when associated with hCG elevation, distinguishing them from simple corpus luteum cysts.

In Context

• "Ultrasound revealed bilateral theca lutein cysts consistent with severe ovarian hyperstimulation syndrome." — Radiology report
• "The patient's theca lutein cysts resolved completely six weeks after delivery." — Follow-up note