Proposed novel nomenclature of vulvar smooth muscle tumors; a case of Smooth Muscle Tumor of Uncertain Malignant Potential (STUMP) of the vulva.
•Clinical experience with smooth muscle tumors of the vulva is limited.•Some tumors present ambiguous histological features concerning for malignancy.•These include infiltration, mitotic activity, size, atypia and tumor cell necrosis.•A case of smooth muscle tumor of the vulva with cellular atypia is presented.•"Smooth Muscle Tumor of Uncertain Malignant Potential" of the vulva is advocated.
Department of Obstetrics and Gynecology, Centre Hospitalier Universitaire de Québec, Laval University, Québec City, Québec, Canada.
Mathieu
M
Viau
Gynecologic Oncology Division, Centre Hospitalier Universitaire de Québec, L'Hôtel-Dieu de Québec, Laval University, Québec City, Québec, Canada.
Marie
M
Plante
Gynecologic Oncology Division, Centre Hospitalier Universitaire de Québec, L'Hôtel-Dieu de Québec, Laval University, Québec City, Québec, Canada.
Marie-Claude
MC
Renaud
Pathology Department, Centre Hospitalier Universitaire de Québec, L'Hôtel-Dieu de Québec, Laval University, Québec City, Québec, Canada.
Katherine
K
Grondin
Pathology Department, Centre Hospitalier Universitaire de Québec, L'Hôtel-Dieu de Québec, Laval University, Québec City, Québec, Canada.
Chantale
C
Morin
Cytologic atypia; Leiomyoma; Leiomyosarcoma; Smooth Muscle Tumor of Uncertain Malignant Potential; Smooth muscle tumor; Vulva