Brain and Nerve No to Shinkei Volume 58, Issue 5 (May 2006)

Sacrococcygeal Dermal Sinus Presented Bacterial Meningitis : A Case Report Miiko Ito 1 , Kaori Sakurada 1 , Yasuaki Kokubo 1 , Shinya Sato 1 , Takamasa Kayama 1 1Department of Neurosurgery, Yamagata University Faculty of Medicine Keyword: coccygeal pit , dermal sinus , dermoid cyst , filum terminale , sacrococcygeal pp.443-447
Published Date 2006/5/1
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A rare case of sacrococcygeal dermal sinus suffering from relapsing meningitis is presented. In addition, deference of clinical figure and pathology between sacrococcygeal region and other regions are discussed. A 10-month-old boy was suffering from relapsing meningitis. Spinal MRI was performed to find occult spinal dysraphism because he had a pit on his hip. The MRI revealed sacrococcygeal dermal sinus. He received surgical resection of dermal sinus based on this findings. Interestingly, different from other dermal sinuses, the dermal sinus runs to caudal direction, and was fused filum terminale with dermoid cyst. This interesting pathological feature of sacrococcygeal dermal sinus seems to come from developmental difference between sacrococcygeal dermal sinus and the other dermal sinuses. Only sacrococcygeal dermal sinus is related with caudal cell mass on its pathogenesis. Because filum terminale is also developed from caudal cell mass, sacrococcygeal dermal sinus seems to be related with filum terminale. Most important differential diagnosis is coccygeal pit that is found in 1~4% of newborn baby. The clinical feature and pathology got from our case must be very helpful to distinguish sacrococcygeal dermal sinus from coccygeal pit.

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Brain and Nerve 脳と神経
58巻5号 (2006年5月)
電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院