title: Myoepithelial cells in needle aspirations of two cases of unusual breast lesions: an aid in differential diagnosis.
abstract: The observation of myoepithelial cells bordering abnormal epithelial cells in fine-needle aspiration smears of two unusual breast lesions helped to prevent misdiagnosis of these lesions as malignant. The presence of myoepithelial cells has been a well-established criterion for histologically benign lesions. Their presence or absence appears to be equally valuable in fine-needle aspiration smears of breast lesions.
mesh_terms: D000232:Adenofibroma / Q000175:diagnosis; D000328:Adult; D001707:Biopsy, Needle; D001943:Breast Neoplasms / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004848:Epithelium / Q000473:pathology; D005189:False Positive Reactions; D005260:Female; D005348:Fibrocystic Breast Disease / Q000175:diagnosis; D006801:Humans