Mature (cystic) ovarian teratoma

Case contributed by Dr Bruno Di Muzio

Presentation

Right lower quadrant pain. Appendicitis?

Patient Data

Age: 13-year-old
Gender: Female
CT

CT Abdomen and pelvis

There is a large solid-cystic pelvic mass (~230ml) displacing the uterus posteriorly and compressing the bladder inferiorly, it is predominantly cystic (~20HU) and has a nodular fat tissue (-68HU) component with some gross peripheral calcifications. There is a mild amount of free fluid in the pelvis. The remainder exam is unremarkable. 

Case Discussion

This case demonstrates a large predominantly cystic mass in the pelvis of a young girl. Its fat tissue component and calcifications give the clue for the diagnosis of a mature cystic ovarian teratoma. It is really hard to consider another differential in this patient and with those radiologic features; a malignant degeneration is unlikely, however, it is impossible to exclude by imaging.

The diagnosis of this case is only based on images; no further clinical data were available. 

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Case information

rID: 41032
Case created: 12th Nov 2015
Last edited: 25th Oct 2016
System: Gynaecology
Inclusion in quiz mode: Included

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