Malignant transformation of glomus tumor is exceedingly rare and most common reported in lower extremity and abdominal viscera. We could find only 6 previous case report of malignant glomus tumor in the hand. Although large and deeply located glomus tumors are considered to be malignant, evidence has shown that most of these cases were clinically benign. These lesions are better considered as g...

Nomenclature Various names have been applied to this entity. These include “ovarian tumors of low malignant potential,” “borderline ovarian tumors,” “atypical proliferating ovarian tumors,” and even “borderline ovarian carcinomas.” Each of these terms has its drawbacks. “Low malignant potential” suggests that these tumors have a certain propensity to become malignant. In fact, as Kurman and Tri...