TY - JOUR T1 - Giant juvenile papillomatosis of the breast in a Nigerian girl JF - BMJ Case Reports JO - BMJ Case Reports DO - 10.1136/bcr-2018-225993 VL - 11 IS - 1 SP - e225993 AU - Sefiya Adebanke Olarinoye-Akorede AU - Bilkisu Farouk AU - Almustapha Aliyu Liman AU - Gbenga Abimbola Kajogbola Y1 - 2018/11/01 UR - http://casereports.bmj.com/content/11/1/e225993.abstract N2 - Juvenile papillomatosis is a benign epithelial proliferative tumour of young women. It was recognised as a distinct clinicopathological entity with defining criteria by Rosen et al since 1980. However, giant juvenile papillomatosis is rare. We report a case of a 14-year-old girl who presented to our institution’s breast clinic with a huge right breast mass measuring 20 cm × 15 cm. She had no personal history of previous breast disease and there was no family history of breast cancer. Our initial preoperative diagnosis was of a phylloides tumour. The patient had a total excision of her breast mass which revealed florid juvenile papillomatosis at histology. This presentation highlights the clinical presentation and imaging features of juvenile papillomatosis. The classical histopathological characteristics, unusual microscopic findings and management of a huge-sized tumour in an adolescent Nigerian patient are also presented. ER -