TY - JOUR T1 - Editorial: MMP-2 and MMP-9 in lymph-node-positive bladder cancer JF - Journal of Clinical Pathology JO - J Clin Pathol SP - 470 LP - 471 DO - 10.1136/jclinpath-2011-200360 VL - 65 IS - 5 AU - Paul K Hegarty Y1 - 2012/05/01 UR - http://jcp.bmj.com/content/65/5/470.2.abstract N2 - The paper by Seiler et al1 describes tissue microarrays on tissue taken from 150 patients with invasive bladder cancer. These patients were clinically node negative on preoperative staging, but were found to have nodal metastases on subsequent histopathological examination. Patients had not received neoadjuvant chemotherapy. The median lymph node yield of 27 is a surrogate for thorough lymphadenectomy and careful histopathological processing. The authors set out to study variation … ER -