Original ArticlesThoracolumbar Intradural Intramedullary Bronchogenic Cyst: A Very Rare AbnormalityErkutlu, Ibrahim MD*; Alptekin, Mehmet MD*; Mizrak, Ayse MD†; Geyik, Murat MD*; Tutar, Ediz MD‡; Gök, Abdulvahap MD*Author Information Departments of *Neurosurgery †Anesthesiology ‡Pathology, Gaziantep University, Medical Faculty, Gaziantep, Turkey The authors declare no conflict of interest.Reprints: Ibrahim Erkutlu, MD, Kolejtepe mah. Mehmet Dai sk, Dr Bulent Aksoy apt. 48/3, Gaziantep, Turkey (e-mail: firstname.lastname@example.org). Neurosurgery Quarterly: August 2011 - Volume 21 - Issue 3 - p 199-202 doi: 10.1097/WNQ.0b013e31821375d9 Buy Metrics Abstract An intradural spinal cyst with both intramedullary and extramedullary components at the level of Th12 is described in a 33-year-old man who presented with a history of pain of the legs and back for 1 month. After surgery, histopathologic examination revealed the diagnosis of bronchogenic cyst. These intradural and extramedullary, poorly defined cystic lesions in the spinal canal are extremely rare. It was not possible to find any other case with both intramedullary and extramedullary component in the literature. In this case, the cyst was a bronchogenic cyst; this is an extremely rare form of such cysts. They are thought to be a malformation resulting from a split notochordal syndrome. Thus, the first thoracolumbar intraspinal bronchogenic cyst with intramedullary and extramedullary component is reported in this study. © 2011 Lippincott Williams & Wilkins, Inc.