uterine smooth muscle tumors of uncertain malignant potential
The current World Health Organization classification indicates that a uterine smooth muscle tumor that cannot be histologically diagnosed as unequivocally benign or malignant should be termed "smooth muscle tumor of uncertain malignant potential" (STUMP). STUMPs represent a heterogeneous group of rare tumors.
Uterine tumors classified as STUMPs using criteria proposed by Stanford investigators are usually clinically benign but should be considered tumors of low malignant potential because they can occasionally recur, in some cases, years after hysterectomy. (#19417585#)
References
Uterine Smooth Muscle Tumors of Uncertain Malignant Potential (STUMP): A Clinicopathologic Analysis of 16 Cases. Ip PP, Cheung AN, Clement PB. Am J Surg Pathol. 2009 May 4. PMID: #19417585#