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55.4 MB (3.1 MB compressed)
5208 x 3720 pixels
44.2 x 31.5 cm ⏐ 17.4 x 12.4 in (300dpi)
DR. E. WALKER / SCIENCE PHOTO LIBRARY DR. E. WALKER / SCIENCE PHOTO LIBRARY
Thecoma. Cut surface of human ovary showing thecoma, a benign theca cell tumour. The yellowish tumour fills the entire ovary apart from a small area round part of the edge (top). Thecoma is an encapsulated benign cancer of older women, originating from follicle cells in the ovary. The tumour cells contain fine lipid droplets which are responsible for the yellow colour. This kind of tumour may secrete excessive amounts of oestrogen, and may be associated with endometrial hyperplasia (proliferation of the uterus lining), or even endometrial carcinoma. Treatment requires surgical removal of the tumour, usually by removing the whole ovary.
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