<unk>  tumors are part of the surface epithelial-stromal tumor group of Ovarian cancers, accounting for 6% of these neoplastic cases.<unk>  tumors are also associated with the pancreas and salivary glands.
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<unk> s with<unk>  cytoplasm (that contains glycogen) and hob nail<unk> s (from which the glycogen has been secreted).
The pattern may be glandular, papillary or solid.
Clear cell
Large cell
Red giant
Apocrine
Carbromal
Eosinophilic
Immunoblast
Dendrite