RT Journal Article SR Electronic T1 Enlarging Vertebral Body Pneumatocysts in the Cervical Spine JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1707 OP 1710 VO 24 IS 8 A1 Kitagawa, Tomoaki A1 Fujiwara, Atsushi A1 Tamai, Kazuya A1 Kobayashi, Naoki A1 Saiki, Kazuhiko A1 Omata, Sadatoshi A1 Saotome, Koichi YR 2003 UL http://www.ajnr.org/content/24/8/1707.abstract AB Summary: An intravertebral pneumatocyst is a relatively rare condition, and its natural course and etiology are unclear. We report a case of intravertebral pneumatocysts in the C5 vertebra that gradually enlarged during a 16-month period as documented by follow-up CT. In addition, direct communication was observed between the gas in the intervertebral disk and another pneumatocyst in the C6 vertebral body, which suggests that the gas in the pneumatocyst had an association with the gas in the degenerated intervertebral disk.