en Pediatric Pediatric case report case report <p>  </p><p>  <strong>Abstract</strong> </p><p>  Urinary retention, a rare childhood problem which is most commonly caused by </p><p>  urinary tract infection. However, neurological neoplasm must also be considered in </p><p>  differential diagnosis. We report here a 3 year old girlthat was referred to the pediatrics </p><p>  department of Kashan University of Medical Sciences (KAUMS) with a history </p><p>  of urinary retention for 10 days. By insertion of a Foley catheter specimens obtained </p><p>  for urinalysis and culture, and also antibiotics were administered, but no clinical </p><p>  improvement encountered and the patient developed lower limbs weakness. </p><p>  Magnetic resonance imaging of the spine revealed an intramedullary mass lesion at </p><p>  located in T10 to T12. Gradual improvement appeared after surgical excision of an </p><p>  infected epidermoid cyst and completion of the course of antibiotics. </p> Epidermoid cyst, intramedullary mass lesion, spinal cord, urinary retention. 105 107 http://mjiri.iums.ac.ir/browse.php?a_code=A-10-1-68&slc_lang=en&sid=1 Ali Honarpisheh honar_md @yahoo.com 20031947532846001813 20031947532846001813 Yes Department of Pediatrics, Kashan University of Medical Sciences,Kashan, Iran Mohammad Reza Sharif 20031947532846001814 20031947532846001814 No Depatment of Pediatrics, Kashan University of Medical Sciences.Kashan, Iran. Ahmad Talebian 20031947532846001815 20031947532846001815 No Depatment of pediatrics, Kashan University of Medical Sciences. Kashan, Iran. Abbas Taghavi Ardakani 20031947532846001816 20031947532846001816 No Depatment of Pediatrics, Kashan University of Medical Sciences. Kashan, Iran. Homayoon Tabesh 20031947532846001817 20031947532846001817 No Depatment of Pediatrics, Kashan University of Medical Sciences. Kashan, Iran. Esmaeel Fakharian 20031947532846001818 20031947532846001818 No Trauma Research center, Kashan University of Medical Sciences. Kashan, Iran.