A CASE OF MALE BREAST CANCER WITH CYSTIC FORMATION

Abstract

A case of male breast cancer with cystic formation is reported. A 84-year-old man complaining of left breast tumor visited to Numata National Hospital on December 23, 1982. Physical examination showed an elastic firm, relatively defined, measured 3.5 × 3.0cm tumor with nipple retraction. Mammogram revealed a relatively defined tumor shadow without calcification and spicula formation. Excisional biopsy was performed.
Gross finding showed various and multiple features, i.e., intracystic papillomatous, cystic and solid lesion. Histologically, invasive papillotubular carcinoma with cystic formation was proven. Cystic formation was thought to be a secondary product due to obstruction of the duct such as ductal spreading of carcinoma. And also the appearance of gynecomastia was seen in the surrounding noncancerous mammary gland ; proliferation of dilated duct with edematous stroma.
Diagnosed left breast cancer (T_2a, N_{1 a}, M₀ Stage II), standard radical mastectomy was performed. This patient has been disease-free since six years after operation.