Tumeur à cellules granuleuses bénigne du sein : lésion rare simulant un cancer du sein

Granular cell tumor of the breast is an uncommon and usually benign disease that mimics carcinoma clinically as well as radiographically. Wide local excision is recommended for initial therapy, but local recurrence is frequent. Thus microscopic diagnosis is fundamental, especially on frozen sections. We report one case of mammary granular cell tumor in young women (25 years). The later was clinically and radiographycally suspect. Diagnosis was made on frozen sections and confirmed on paraffin embedded specimen with immunohistochemistry study.