J Korean Surg Soc.
2003 Jan;64(1):72-76.
A Case of Malignant Fibrous Histiocytoma-like Sarcomatoid Metaplastic Carcinoma of the Breast
- Affiliations
-
- 1Department of Surgery, College of Medicine, Hanyang University, Seoul, Korea. pjjung@hanyang.ac.kr
- 2Department of Pathology, College of Medicine, Hanyang University, Seoul, Korea.
Abstract
- A metaplastic carcinoma of the breast (MpC) is a very rare malignant tumor accounting for fewer than 1% of all mammary tumors. MpCs are difficult to diagnose accurately and classify because of their rarity and varied histological patterns. A MpC is a histologically diverse type of malignancy in which an adenocarcinoma is found to co-exist with an admixture of spindle cells, squamous, chondroid, or bone-forming neoplastic cells. Cystic changes can be encountered in MpC, particularly in carcinoma with squamous metaplasia, but are rare in a sarcomatoid metaplastic carcinoma. We recently experienced an unusual case of a sarcomatoid metaplastic carcinoma mimicking a malignant fibrous histiocytoma of the soft tissue in a 34-year-old female, who had a breast tumor with an extensive cystic change, which was growing rapidly. Here, we report this unusual case of MpC with a review of the relevant literature.
