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Inguinal dermoid cyst of the round ligament. A case report and review of the literature.

INTRODUCTION
Dermoid cysts are rarely located in extraovarian sites, representing an extremely uncommon lesion of the round ligament. The differential diagnosis of an inguinal lesion that proved to be a dermoid cyst deriving from the round ligament is presented with a review of the literature.


CASE REPORT
A case of a 27-year-old female with a dermoid cyst arising from the round ligament and lying inside the inguinal canal, which was tender and palpable, is reported.


DISCUSSION
Underlining their origin, clinical manifestation, gross appearance and pathology, we differentiate dermoid cysts mainly from epidermoid cysts and mature cystic teratomas, analyzing the importance of such a distinction to the possibility of malignant degeneration and recurrence of a dermoid cyst in the round ligament.