Round ligament mesothelial cysts
Fluctuating groins lump for 2 years.
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Bilateral cystic lesions in inguinal canals. Medial to external iliac vessels and origins of inferior epigastric arteries. Round ligaments seen on cranial extent leading into them. Right cyst has internal coarse calcification, possibly from previous infection/inflammation. Right cyst is elliptical, while left cyst is more ovoid.
Differentials include: varicosities of the round ligament, inguinal herniation of the ovary,
cystic lymphangiomas, epidermal inclusion cysts, abscesses, and pseudoaneurysms.
This may be similar pathology as cyst of canal of Nuck, which is more commonly diagnosed in pediatric patients.
- Sonography of Various Cystic Masses of the Female Groin. Soon Nam Oh et. al. J Ultrasound Med 2007; 26:1735–1742.