Interobserver variation in the identification of breast carcinoma in intramammary lymphatics. 1982

K W Gilchrist, and V E Gould, and S Hirschl, and J E Imbriglia, and A S Patchefsky, and D W Penner, and J Pickren, and I S Schwartz, and J E Wheeler, and J M Barnes, and E G Mansour

Nine surgical pathologists participated in a microscopic review of 35 cases of pT1-2 N0 M0 breast carcinoma. The pathologists outlined strict criteria for the identification of intramammary lymphatics and blood vessels and for the identification of cancerous emboli in these vascular channels. Each mastectomy case was studied by three different pathologists. All three concurred on the presence or absence of intralymphatic cancer in 12 of the 35 cases. Observers agreed on the absence of blood vessel invasion in 30 of the 35 cases. There was no consistent bias on the part of a single reviewer, either alone or with another pathologist, in identifying the emboli. We conclude that the identification of intralymphatic cancerous emboli in mastectomy specimens is not a reliably reproducible prognostic finding on which recommendation of systemic chemotherapy in stage I breast carcinoma patients can be based.

UI MeSH Term Description Entries
D008208 Lymphatic System A system of organs and tissues that process and transport immune cells and LYMPH. Lymphatic Systems
D010340 Pathology, Surgical A field of anatomical pathology in which living tissue is surgically removed for the purpose of diagnosis and treatment. Surgical Pathology
D001943 Breast Neoplasms Tumors or cancer of the human BREAST. Breast Cancer,Breast Tumors,Cancer of Breast,Breast Carcinoma,Cancer of the Breast,Human Mammary Carcinoma,Malignant Neoplasm of Breast,Malignant Tumor of Breast,Mammary Cancer,Mammary Carcinoma, Human,Mammary Neoplasm, Human,Mammary Neoplasms, Human,Neoplasms, Breast,Tumors, Breast,Breast Carcinomas,Breast Malignant Neoplasm,Breast Malignant Neoplasms,Breast Malignant Tumor,Breast Malignant Tumors,Breast Neoplasm,Breast Tumor,Cancer, Breast,Cancer, Mammary,Cancers, Mammary,Carcinoma, Breast,Carcinoma, Human Mammary,Carcinomas, Breast,Carcinomas, Human Mammary,Human Mammary Carcinomas,Human Mammary Neoplasm,Human Mammary Neoplasms,Mammary Cancers,Mammary Carcinomas, Human,Neoplasm, Breast,Neoplasm, Human Mammary,Neoplasms, Human Mammary,Tumor, Breast
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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