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Cardiac metastasis from primary cervical squamous cell carcinoma: three case reports and a review of the literature.

Clinically evident cardiac metastases from malignant neoplasms are uncommon, occurring most commonly in association with lung and breast carcinoma, lymphoma, leukemia and melanoma. The vast majority, over 90%, present with pericardial involvement. Squamous cell carcinomas of the cervix rarely produce cardiac metastases, with endomyocardia metastases being particularly rare. Three patients are reported who presented with primary squamous cell carcinoma of the cervix and developed this pattern of metastasis, one of whom was diagnosed at endomyocardial biopsy and the other two at autopsy. The paucity of such cases in the literature emphasizes the uniqueness of this phenomenon.