Giant cystic adenomatoid tumour of the uterus

Abstract

Gynaecology Case Reports 407Histological examination demonstrated that the polyp consisted of loose fi brous tissue surrounded by a hyperplastic stratifi ed squamous epithelial layer ( Figure 1K). Th e core of the polyp contained numerous ectatic, irregular, thin-walled blood vessels surrounded by a low density of scattered fusiform and stelliform cells with a low grade of atypia and no mitotic fi gures ( Figure 1L). A small number of proliferating, desmin-positive myofi broblasts were evident ( Figure 1I). Interstitial oedema with some areas of collagenisation, containing ER-positive cells, was also apparent ( Figure 1J). Our immunohistochemistry results satisfy the diagnostic standards established by the WHO for fi broepithelial polyps. However, polyps of this size (6.0 ϫ 4.0 ϫ 1.0 cm) are extremely unusual.Vaginal ultrasound was done to determine whether residual tumour remained in the vagina, as well as to rule out invasive vascular myxoma. No abnormality was detected. Follow-up examinations at 3, 6, and 12 months showed that the cervix of the patient was normal and there was no relapse ( Figure 1B).