Cornelia Liu Trimble, MD

Clinical and laboratory reports suggest that ovarian tumors of lowmalignant potential (LMP) represent a “grab bag” of tumors, withdifferent etiologies, molecular biologies, and prognoses. As a result,data on incidence and prognosis may be quite unreliable. Diagnosis isbest made on permanent section. Half of women under age 40 undergoconservative, fertility-sparing surgery when diagnosed with anovarian tumor of LMP, but no adjuvant therapy has been shown toprolong survival in this population. In addition to the various controversiessurrounding LMP tumors, this review will address prognosticmarkers, risk of malignant transformation, treatment of progressivedisease, surveillance after conservative surgery, and future directionsfor research.

Ovarian tumors of low malignant potential (LMP) would benefit from a new name, not to mention a deeper understanding of their biology, effective treatment, and a framework within which they can be studied. Fortunately, for a pathologic entity that is poorly understood and also is unresponsive to current therapy, most LMP ovarian tumors carry a benign prognosis.