title: Cystic benign phyllodes tumor in the inguinal region.
abstract: The present lesion was the first reported case of a benign intracystic phyllodes tumor in the inguinal region. We report the case of a 51-year-old female patient who presented with an inguinal mass. A clinical diagnosis of malignant lymphoma was considered in this case. The resected tumor was well-circumscribed and showed numerous papillary nodular protrusions into a central cystic cavity (3.5×2.5 cm). The microscopic findings showed hyperplastic epithelium-lined cysts with leaf-like intraluminal epithelium-lined bland stromal projections. The epithelial cell linings were strongly positive for estrogen and progesterone receptors.
authors.affiliation: Department of Pathology, Dankook University College of Medicine, Cheonan, Korea.
authors.forename: Jai Hyang
authors.initials: JH
authors.lastname: Go
keywords: Cysts; Ectopic breast; Groin; Phyllodes tumor