Nevus cell aggregates associated with lymph nodes. Immunohistochemical observations.
Nevus cell aggregates occurring in association with axillary lymph nodes can be difficult to recognize and differentiate from a metastatic breast carcinoma. We believe S100-protein immunoreactivity, along with negative staining for keratin and epithelial membrane antigen, and typical geographic distribution of nevus cell aggregates in lymph nodes are helpful in providing an accurate diagnosis.
D000230:Adenocarcinoma / Q000378:metabolism / Q000473:pathology*; D000368:Aged; D001365:Axilla; D001943:Breast Neoplasms / Q000378:metabolism / Q000473:pathology*; D002277:Carcinoma / Q000378:metabolism / Q000473:pathology*; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis / Q000378:metabolism / Q000473:pathology*; D009363:Neoplasm Proteins / Q000378:metabolism; D009418:S100 Proteins / Q000032:analysis
D009363:Neoplasm Proteins; D009418:S100 Proteins