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Clear Cell Tumor
Clear cell tumours are part of the surface epithelial-stromal tumour group of ovarian neoplasms, accounting for 6% of all neoplastic cases. Benign and borderline variants of this neoplasm are rare, and most cases are malignant. Typically, they are cystic neoplasms with polypoid masses that protrude into the cyst.
On microscopic pathological examination, they are composed of cells with clear cytoplasm (that contains glycogen) and hob nail cells (from which the glycogen has been secreted). The pattern may be glandular, papillary or solid.
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