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The coexistence of split cord malformations (SCMs) and myelomeningoceles (MMCs) can be misdiagnosed or ignored and can cause spinal cord tethering. The authors investigated cases involving the coexistence of SCMs and MMCs in patients from the Children's Hospital Medical Center in Tehran.

Of the 330 patients with MMCs who underwent operations at the Children's Hospital Medical Center between January 2001 and June 2005, 33 (10%) had an associated SCM. These 33 cases were retrospectively reviewed.

Eighteen patients (55%) were female, and the mean age of the patients at presentation was 2.9 months. In 17 of the 33 patients, the SCM occurred at the level of the neural placode. A Type I SCM was found in 26 children. Two patients had hypertrichosis. Eight patients had unilateral leg paresis. The MMC sac …