Adenoma of the nipple projecting out of the nipple: curative resection without excision of the nipple.
BACKGROUND
Adenoma of the nipple is a rare breast tumor that is often mistaken clinically for Paget's disease and misinterpreted pathologically as invasive ductal carcinoma.


METHODS
We report herein a distinctive case of adenoma of the nipple projecting out of the nipple. In the current case, we were able to perform curative resection through a periareolar incision similar to a microdochectomy without excision of the nipple. The diagnosis of adenoma of the nipple was confirmed histopathologically.


CONCLUSIONS
Although the tumor was found on top of the nipple, curative tumor resection without excision of the nipple was possible and the nipple was completely preserved. Adenoma of the nipple is a benign tumor, and thus the diagnosis of adenoma of the nipple must be confirmed so that unnecessary surgery can be avoided.
Department of General Surgical Science, Graduate School of Medicine, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan. ftakaaki@gunma-u.ac.jp.
Takaaki
T
Fujii
Reina
R
Yajima
Hiroki
H
Morita
Satoru
S
Yamaguchi
Soichi
S
Tsutsumi
Takayuki
T
Asao
Hiroyuki
H
Kuwano
D000236:Adenoma / Q000473:pathology / Q000601:surgery*; D000328:Adult; D001943:Breast Neoplasms / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D009558:Nipples / Q000473:pathology / Q000601:surgery*; D059351:Organ Sparing Treatments; D011379:Prognosis