Korean J Cytopathol.  2007 Mar;18(1):62-68.

Fine Needle Aspiration Cytology of Invasive Micropapillary Carcinoma of the Breast

• Choi HJ
• Jung JH
• Shin JH
• Min K
• Yoo J
• Kang SJ
• Lee KY

Abstract

Invasive micropapillary carcinoma (IMPC) of the breast is recently described rare variant of invasive ductal carcinoma. This variant has a distinctive histological features and aggressive biological behavior. We reviewed the cytologic features of eight cases of IMPC. The cytologic smears showed moderate to high cellularity and the tumor tissue was composed of atypical, angulated, cohesive clusters of neoplastic cells with a papillary to tubuloalveolar architecture, and a morular growth pattern without fibrovascular cores was seen on the histopathology. IMPC of the breast has distinctive cytologic features and it is important to make an early diagnosis via fine needle aspiration cytology due to this tumor's aggressive behavior.

Keyword

Breast; Invasive micropapillary carcinoma; Fine needle aspiration cytology

MeSH Terms

Biopsy, Fine-Needle*
Breast*
Carcinoma, Ductal
Early Diagnosis