Background: Castleman disease (CD) is a rare lymphoproliferative disorder that might present as an adnexal mass. We report a case of pelvic CD in an adolescent girl who presented with abdominal pain. Case: A 13-year-old girl presented with severe abdominal pain, nausea, and vomiting, and was found to have a solid adnexal mass. Repeat imaging revealed the mass to be retroperitoneal and in the left pelvic side wall. She underwent surgical removal via an open retroperitoneal approach, and pathology revealed CD, hyaline vascular variant subtype. Summary and Conclusion: Pelvic CD should be considered in the differential diagnosis for an adnexal mass in a young woman. Surgical planning is critical because of the possibility of extension and mass effect. Most pelvic CD is unicentric, hyaline vascular variant subtype, and does not recur after surgical removal.
- Adnexal mass
- Castleman disease