Metastatic carcinoma in axillary nodes without evidence of a primary mammary lesion.
D000230:Adenocarcinoma; D001365:Axilla; D001943:Breast Neoplasms; D005260:Female; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology; D008207:Lymphatic Metastasis; D008408:Mastectomy; D008875:Middle Aged