Microglandular Adenosis.
- Author:
Dong Ju KIM
1
;
Woo Young SUN
;
Dong Hee RYU
;
Jin Woo PARK
;
Hyo Young YUN
;
Jae Woon CHOI
;
Young Jin SONG
Author Information
- Publication Type:Case Report
- Keywords: Breast; Cancer; Microglandular adenosis
- MeSH: Biopsy, Large-Core Needle; Breast; Breast Neoplasms; Female; Fibrocystic Breast Disease; Humans; Mammography; Muscles; Physical Examination
- From:Journal of Breast Cancer 2011;14(1):72-75
- CountryRepublic of Korea
- Language:English
- Abstract: Microglandular adenosis (MGA) of the breast is a very rare and benign proliferative lesion. Most patients complain of a palpable breast mass that may arouse a clinical suspicion of breast cancer. Histopathologically, it is hard to distinguish MGA from breast cancer because of the lack of a myoepithelial layer and infiltrative proliferation. Several studies have reported a strong relationship between MGA and carcinoma arising in MGA, so the mass should be excised completely in cases of MGA determined from a core needle biopsy rather than observation. A 72-years-old woman presented with a palpable breast mass. On physical examination, a mass was palpable in the right upper outer quadrant area and somewhat fixed to the surrounding tissues and pectoralis major muscle. We could not detect any mass or dense lesion on mammography because of a grade 4 dense breast. Ultrasonographic findings revealed a low echoic lesion with indistinct margins. The result of a core needle biopsy was MGA, which was confirmed by excision. We report one case of MGA, which was believed to breast cancer clinically.
