title: [Hematogenous metastases of benign pleomorphic adenomas of the salivary glands (author's transl)].
abstract: Hematogenous metastases of benign pleomorphic adenomas are exceptionally rare. In three secure reports of the world literature metastases occurred in lung, liver or bone after operation of a benign pleomorphic adenoma with the greatest interval of twenty-two years between operation and metastases. This will be interpreted as implantation-metastases. All other observations represented secondary carcinomas in pre-existing pleomorphic adenomas. The morphological criterias of an accurate classification are explained. A number of reports of the literature about metastases of benign pleomorphic adenomas deals with misinterpretations of secondary adenomas in pre-existing pleomorphic adenomas.
mesh_terms: D000236:Adenoma / Q000473:pathology*; D000328:Adult; D000368:Aged; D001859:Bone Neoplasms / Q000473:pathology; D002277:Carcinoma / Q000473:pathology*; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D010307:Parotid Neoplasms / Q000473:pathology; D012468:Salivary Gland Neoplasms / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology; D013363:Submandibular Gland / Q000473:pathology
vernacular_title: Hämatogene Metastasen bei pleomorphen Speicheldrüsenadenomen