BIOPHOTO ASSOCIATES / SCIENCE PHOTO LIBRARY BIOPHOTO ASSOCIATES / SCIENCE PHOTO LIBRARY
Ovarian tumour. Light micrograph of a section through a mucinous cystic tumour in an ovary. Both benign (non-cancerous) and malignant (cancerous) forms of this tumour develop as large masses, virtually replacing the ovary. This tumour is of borderline malignancy and has a better prognosis than the overtly malignant form.
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