NCIt definition : A steroid cell tumor that arises from the ovary and is defined by morphologic features
that do not fit into the categories of Leydig cell tumor and stromal luteoma. These
features include solid proliferations of polygonal neoplastic cells with eosinophilic
and granular cytoplasm. Grossly, these tumors usually present as large and well circumscribed
masses and are usually associated with androgenic manifestations. Approximately one
third of the cases have a malignant clinical course.;