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BACKGROUNDBloody nipple discharge is a significant clue in the detection of ductal carcinoma of the breast. In the past, pathologic diagnoses were obtained exclusively via excision, but recently developed mammoscopic techniques have been found to yield valuable information relating to the diagnosis of intraductal lesions.METHODSMammary duct endoscopy (i.e., mammoscopy) was performed a combined total of 407 times for 295 patients who experienced nipple discharge. Intraductal breast biopsy (IDBB) under mammoscopic observation was performed in 193 intraductal papillomas (from a total of 107 patients) and 30 ductal carcinomas (from a total of 27 patients); IDBB was performed a combined total of 36 times in the 27 patients who had breast carcinoma and yielded 21 diagnostic specimens (58.3%). In addition, the therapeutic value of IDBB was assessed in 70 patients with intraductal papilloma who had undergone more than 3 years of follow‐up; these 70 patients harbored a combined total of 75 intraductal papillomas.RESULTSIDBB correctly identified the presence of carcinoma in 9 of 27 patients (33.3%); 7 other lesions (25.9%) were placed in the suspected carcinoma (i.e., atypical papillary lesion) category, and 5 (18.5%) were identified as intraductal papillomas. Using IDBB, it was difficult to collect diagnostic specimens from patients with breast carcinoma, because of the location and weak tissue cohesiveness of these lesions compared with intraductal papillomas. The 193 intraductal biopsies performed on intraductal papillomas yielded only 20 specimens that were insufficient for diagnosis. IDBB exhibited therapeutic efficacy in 54 of 70 patients with intraductal papilloma (77.6%) who had more than 3 years of clinical follow‐up. Therapeutic results tended to be less favorable for patients who had intraductal lesions in multiple duct lobular units.CONCLUSIONSMammoscopy can contribute not only to the diagnosis of cases of nipple discharge but also to the treatment of intraductal papilloma. Cancer 2004. © 2004 American Cancer Society.
BACKGROUNDBloody nipple discharge is a significant clue in the detection of ductal carcinoma of the breast. In the past, pathologic diagnoses were obtained exclusively via excision, but recently developed mammoscopic techniques have been found to yield valuable information relating to the diagnosis of intraductal lesions.METHODSMammary duct endoscopy (i.e., mammoscopy) was performed a combined total of 407 times for 295 patients who experienced nipple discharge. Intraductal breast biopsy (IDBB) under mammoscopic observation was performed in 193 intraductal papillomas (from a total of 107 patients) and 30 ductal carcinomas (from a total of 27 patients); IDBB was performed a combined total of 36 times in the 27 patients who had breast carcinoma and yielded 21 diagnostic specimens (58.3%). In addition, the therapeutic value of IDBB was assessed in 70 patients with intraductal papilloma who had undergone more than 3 years of follow‐up; these 70 patients harbored a combined total of 75 intraductal papillomas.RESULTSIDBB correctly identified the presence of carcinoma in 9 of 27 patients (33.3%); 7 other lesions (25.9%) were placed in the suspected carcinoma (i.e., atypical papillary lesion) category, and 5 (18.5%) were identified as intraductal papillomas. Using IDBB, it was difficult to collect diagnostic specimens from patients with breast carcinoma, because of the location and weak tissue cohesiveness of these lesions compared with intraductal papillomas. The 193 intraductal biopsies performed on intraductal papillomas yielded only 20 specimens that were insufficient for diagnosis. IDBB exhibited therapeutic efficacy in 54 of 70 patients with intraductal papilloma (77.6%) who had more than 3 years of clinical follow‐up. Therapeutic results tended to be less favorable for patients who had intraductal lesions in multiple duct lobular units.CONCLUSIONSMammoscopy can contribute not only to the diagnosis of cases of nipple discharge but also to the treatment of intraductal papilloma. Cancer 2004. © 2004 American Cancer Society.
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