title: Neoplasm to neoplasm metastasis. Pheochromocytoma harboring a metastasis of breast cancer.
abstract: Breast cancer commonly metastasizes to the adrenal glands. Metastases to an already existing adrenal gland tumor, however, are a rare finding. To our knowledge, this report represents the first case of a breast carcinoma metastasizing to a pheochromocytoma. Metastases of a cancer to another coexisting tumor in the same individual is an unusual event.
mesh_terms: D000310:Adrenal Gland Neoplasms / Q000473:pathology / Q000556:secondary*; D000368:Aged; D001943:Breast Neoplasms; D005260:Female; D006801:Humans; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D010673:Pheochromocytoma / Q000473:pathology*