Mesothelial cyst of uterine corpus misdiagnosed as leiomyoma

• Published in: Chinese medical journal Vol. 132; no. 12; pp. 1502 - 1503
• Main Authors: Mo, Shi-Ping, Wang, Meng-Yao, Li, Jin-Ke
• Format: Journal Article
• Language: English
• Published: China Lippincott Williams & Wilkins Ovid Technologies 20.06.2019; Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, Sichuan 610041, China%Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu, Sichuan 610041, China; Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu, Sichuan 610041, China; Wolters Kluwer
• Subjects: Abdomen; Cysts; Cytokeratin; Fibroids; Hemoglobin; Hysterectomy; Laparoscopy; Ligaments; Mesothelioma; Pathology; Surgery; Ultrasonic imaging; Uterus; Women; China; @@
• ISSN: 0366-6999; 2542-5641
• DOI: 10.1097/CM9.0000000000000291

On that previous occasion, B-ultrasonography revealed a cystic mass with a compartmentalized structure (10.3 × 5.4 × 8.8 cm) on the left side of the pelvic cavity, and laparoscopic exploration found a cystic mass on the posterior uterine wall, which was diagnosed as “leiomyoma with cystic degeneration” based on pathology analysis of flash-frozen surgical tissues. Analysis of paraffin-embedded sections from this repeat surgery showed a single-layer cystic structure, lined with flat mesothelial cells, on the myometrial wall [Figure 1B and 1C]. The typical microscopic appearance of a single layer of cuboidal cells lining the cyst wall and positive staining for specific markers such as calretinin may help diagnose mesothelial cysts in the pelvic cavity.