Squamous cell carcinoma of lung metastasizinig in breast.

Metastasis in breast from extra-mammary malignancy is rare and lung is the third most common primary site when such a metastasis occurs. Small cell carcinoma and adenocarcinoma are two histological varieties of lung carcinoma that may metastasize to breast and squamous cell type is very rare. Here we report a case of squamous cell carcinoma of lung that metastasized in the breast and mimicked primary breast carcinoma. [ABSTRACT FROM AUTHOR]