en Descriptive & Survey <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span style="font-size:9.0pt"><span style="background:white"><span cambria="" style="font-family:">Aims:</span></span></span></b><span style="font-size:9.0pt"><span style="background:white"><span cambria="" style="font-family:"> Given the above and the increasing prevalence of pharyngeal tumors in recent years and the high mortality of patients with these tumors, the need for epidemiological studies to determine the causes and pathophysiology of these tumors are necessary; Therefore, the present study was performed to investigate the epidemiology of uncommon pharyngeal tumors.</span></span></span></span></span></span><br> <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span style="font-size:9.0pt"><span style="background:white"><span cambria="" style="font-family:">Instrument & Methods:</span></span></span></b><span style="font-size:9.0pt"><span style="background:white"><span cambria="" style="font-family:"> This study is a retrospective cohort that was performed during the period of 2017-19 in the hospitals of Tabriz University of Medical Sciences with the participation of 60 patients with confirmation of uncommon throat cancers by available sampling method. Patients&#39; records were reviewed based on tumor location and demographic characteristics, and based on the information obtained, the epidemiology of uncommon pharyngeal cancers was reviewed in this study.</span></span></span><span style="font-size:9.0pt"><span style="background:white"><span style="font-family:"Cambria",serif"></span></span></span></span></span></span><br> <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span style="font-size:9.0pt"><span style="background:white"><span cambria="" style="font-family:">Findings:</span></span></span></b><span style="font-size:9.0pt"><span style="background:white"><span cambria="" style="font-family:"> The lowest type of cancer in the studied cases was C14.0 and the highest type of cancer was D37.0 The mean age in group C14.0 was significantly higher than other groups and in group D37.0. male gender had the most conflict. In all cancers, female gender was the most common; The highest smoking rate was in the D37.0 group.</span></span></span><span style="font-size:9.0pt"><span style="background:white"><span style="font-family:"Cambria",serif"></span></span></span></span></span></span><br> <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span style="font-size:9.0pt"><span style="background:white"><span cambria="" style="font-family:">Conclusion:</span></span></span></b><span style="font-size:9.0pt"><span style="background:white"><span cambria="" style="font-family:"> Pharyngeal tumors are as rare in northwestern Iran as in other parts of the world. Smoking, old age, previous history of cancer are rare risk factors for this disease.</span></span></span></span></span></span><br> &nbsp; Epidemiology, Pharyngeal, Cancer, Demographic Characteristics 39 42 http://gmedicine.de/browse.php?a_code=A-10-1-9&slc_lang=en&sid=2 Sh. Noei Alamdary 10031947532846001382 10031947532846001382 No Department of Otorhinolaryngology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran Sh. Ghasembaglou 10031947532846001383 10031947532846001383 Yes Department of Otorhinolaryngology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran