Empered by the results of well-constructed phase iii studies. We need to improve staging, develop techniques to identify patients who are potential responders to adjuvant treatment, and continue to test strategies in a rigorous scientific manner. There are those who consider esophageal cancer a nonsurgical disease. Although open-minded to this concept, i would argue that surgery now plays a pivotal role in determining future treatment allocation to subsets of patients with esophageal cancer. viagra no prescription needed Much work remains to be done! â© alphamed press previous section â  references: ↵ american joint committee on cancer. viagra canada Ajcc cancer staging handbook. Philadelphia: lippincott-raven, 1998:67. ↵ rice tw, zuccaro g, adelstein dj et al. buy viagra online Esophageal carcinoma: depth of tumor invasion is predictive of lymph node status. Ann thorac surg 1998;65:787-792. Abstract / free full text ↵ sondenna k, skaane p, nygaard k et al. Value of computed tomography in preoperative evaluation of resectability and staging in esophageal carcinoma. Eur j surg 1992;168:537-540. ↵ consigliere d, chua cl, hui f et al. Computed tomography for esophageal carcinoma: its value to the surgeon. J r coll surg edinb 1992;37:113-117. Medline ↵ ziegler k, sanft c, zeitz m et al. Evaluation of endosonography in tn staging of oesophageal cancer. Gut 1991;32:16-20. Abstract / free full text botet jf, lightdale cj, zauber ag et al. Preoperative staging of esophageal cancer: comparison of endoscopic us and dynamic ct. generic viagra online forum Radiology 1991;181:419-425. viagra 20 year Abstract / free full text ↵ tio tl, coene pplo, schouwink mh et al. buy generic viagra Esophagogastric carcinoma: preoperative tnm classification with endosonography. Radiology 1989;173:411-417. viagra online benditas Abstract / free full text grimm h, soehendra n, hamper k et al. Endosonography versus computed tomography for determination of loco-regional spread in esophageal cancer: a prospective controlled study. In: ferguson mk, little ag, skinner db, eds. Diseases of the esophagus, vol 1: malignant diseases. buy viagra canada Mount kisco, ny: futura, 1990:125-134. ↵ vilgrain v, mompoint d, palazzo l et al. Staging of esophageal carcinoma: comparison of results with endoscopic sonography and ct. Am j roentgenol 1990;155:277-281. Abstract / free full text ↵ krasna mj, flowers jl, attar s et al. Combined thoracoscopic/laparoscopic staging of esophageal cancer. cheap viagra J thorac cardiovasc surg 1996;111:800-807. Abstract / free full text ↵ luketich jd, schauer p, landreneau r et al. Minimally invasive surgical staging is superior to endoscopic ultrasound in detecting lymph node metastases in esophageal cancer. cheap viagra J thorac cardiovasc surg 1997;114:817-823. Abstract / free full text ↵ block mi, patterson ga, sundaresen rs et al. generic viagra online forum Improvement in staging esophageal cancer with the addition of positron. genuine viagra for sale