Abstract
Immature ovarian teratomas are rare tumours occurring most commonly in the first two decades of life. These tumours differ from their mature counterparts both histologically by the presence of immature tissue, and clinically by their more malignant behaviour. Microscopic examination reveals tissue from all three germ layers with at least one of the components having an immature appearance. The grade is based on the proportion of immature neuroepithelium and highly correlates with the tumour grade and hence prognosis. These tumours usually are confined to the ovary and are typically chemo- and radiosensitive. They may metastasise to peritoneum, liver or lung. We present a case of bilateral teratomas in a 25-year-old nulliparous woman who was found to have immature elements including neuroectodermal tissue, mesenchymal nodules, immature fat and cartilage within the left sided tumour. She is currently undergoing chemotherapy.
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