Preoperative biopsy of pararectal lymph nodes in rectal cancer using endoluminal ultrasonography
| Autor: | Victor W. Fazio, Tracy L. Hull, Christina Czyrko, Scott A. Strong, Jeffrey W. Milsom |
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| Rok vydání: | 1994 |
| Předmět: |
Adult
Male medicine.medical_specialty Colorectal cancer Lymph node biopsy Rectum Pararectal lymph nodes Adenocarcinoma Sensitivity and Specificity Predictive Value of Tests Biopsy Preoperative Care medicine Humans False Positive Reactions Lymph node False Negative Reactions Aged Neoplasm Staging Ultrasonography Aged 80 and over medicine.diagnostic_test business.industry Rectal Neoplasms Biopsy Needle Gastroenterology Reproducibility of Results General Medicine Middle Aged medicine.disease medicine.anatomical_structure Lymphatic Metastasis Female Lymph Radiology Lymph Nodes business |
| Zdroj: | Diseases of the colon and rectum. 37(4) |
| ISSN: | 0012-3706 |
| Popis: | PURPOSE: Because definitive information regarding lymph node status in rectal cancer would be valuable preoperatively, we evaluated the safety, feasibility, and accuracy of performing endoluminal ultrasound-guided biopsies of pararectal lymph nodes in 26 rectal cancer patients. Biopsies were compared with the pararectal tissues removed at surgery. METHODS: Using a longitudinally oriented 7.0-MHz ultrasound probe and an 18-gauge spring-loaded core biopsy needle, patients underwent biopsies of lymph nodes detected ultrasonographically without complications. RESULTS: A biopsy of adenocarcinoma was obtained in 13 patients, lymphoid material in 5 patients, and irrelevant material in 8 patients. Accuracy rate (true positives divided by number of procedures) was 77 percent, with a sensitivity of 71 percent, a specificity of 89 percent, a positive predictive value of 92 percent, and a negative predictive value of 62 percent. When adenocarcinoma or lymphoid material was obtained, there was only one false positive and one false negative. CONCLUSION: Endoluminal ultrasonographyguided lymph node biopsy is simple and safe, and when adenocarcinoma or lymphoid material is obtained on biopsy, clinical decision making can be based on this information. |
| Databáze: | OpenAIRE |
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