en Gastroenterology Gastroenterology case report case report <font size="2" face="TimesNewRoman"><font size="2" face="TimesNewRoman"><p align="left">Here, we present a case of a 78-year-old man that underwent gastrointestinal endoscopy because of one- month</p><p align="left">history of dysphagia to liquids and solid foods with accompanying weight loss. On endoscopy, there was distal</p><p align="left">esophageal stenosis. Multiple biopsies were obtained. Histologic examination of the samples revealed normal</p><p align="left">tissue. The stenosis was treated by dilatation and abdomino pelvic computed tomography scanning was performed</p><p align="left">to search for an underlying malignant lesion that showed a mass adjacent to distal esophagus. We did</p><p align="left">endosonography- guided fine needle aspiration of the mass. It was a squamous cell carcinoma (SCC). Malignancy</p><p align="left">is a challenging diagnosis in patients with dysphagia and near normal endoscopy. To our knowledge,</p><p>there are a few reports of SCC to cause it.</p></font></font> Achalasia, Dysphagia. 332 335 http://mjiri.iums.ac.ir/browse.php?a_code=A-10-1-684&slc_lang=en&sid=1 Nader Roushan nroshan@tums.ac.ir 200319475328460012790 200319475328460012790 Yes Department of Internal Medicine, Division of Gastroenterology, Imam Khomeini Hospital,Tehran University of Medical Sciences, Tehran, Iran. Abolfazl Zolfaghari abaszoalfaghari1354@yahoo.com 200319475328460012791 200319475328460012791 No Department of Internal Medicine, Division of Gastroenterology, Tehran University of Medical Sciences,Tehran, Iran. Mehrnaz Asadi mehrnazasadi@yahoo.com 200319475328460012792 200319475328460012792 No Department of Internal Medicine, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran. Reza Taslimi rtaslimi@tums.ac.ir 200319475328460012793 200319475328460012793 No Department of Internal Medicine, Division of Gastroenterology, Tehran University of Medical Sciences, Tehran, Iran.