Benign Phyllodes Tumor of the Vulva: A Case Report and Literature Review

Phyllodes tumour of the labia minora

A 33-year-old woman presented for a preoperative examination prior to an upcoming operative hysteroscopy. During the examination, a firm 1 cm mass in her right labia minora was noted. The mass was excised in the operating room without difficulty. Pathological examination revealed a benign phyllodes tumour of the vulva. Phyllodes tumours are uncommon fibroepithelial tumours primarily found in the breast although rarely may present as a vulvar lesion. Phyllodes tumours of the vulva are rarely reported in the literature, with only 17 previously reported cases. This case represents the first reported case of a phyllodes tumour occurring in the labia minora. While most of these tumours are benign, it is important to keep these and other rare tumours in the differential diagnosis of vulvar masses. Even with benign tumours, continued surveillance for recurrence should be performed.

Primary Benign Phyllodes Tumor of The Vulva: Case Report and Review of Literature

Phyllodes tumor (PT) of the vulva is very rarely seen and has been reported in only 17 cases in English literature. It is still uncertain that proliferative mammary gland lesions including PT in the anogenital region originate from ectopic breast tissue or from local adnexal structures. We report a case of primary benign PT of the vulva in a 41-year-old female patient. Microscopic examination revealed biphasic tumoral formation with typically extensive leaf-like papillary structures growing toward slit-like spaces under the skin. In immunohistochemical examination, more than 50% of epithelial cells showed a positive reaction with ER, PR, and panCK and a focal positive reaction with GCDFP-15. Myoepithelial cells showed a positive reaction with SMA, CD10, and WT-1. In this report, we underline the clinicopathologic features of PT localized to an unusual site, and also discuss its etiology, differential diagnosis in the light of the current literature.

[Fibroepithelial tumors of the anogenital mammary-like glands]

Mammary-like glands are a normal anatomical component of the anogenital region. The tumors occurring in them morphologically mimic the similar diseases of the breast. The paper presents a case of vulvar fibroadenoma with leaf-like outgrowths and apocrine metaplasia in a 38-year-old female patient. It describes the clinical and morphological characteristics of fibroadenomas and benign phyllodes tumors in the anogenital region.