PT  - JOURNAL ARTICLE
AU  - M. Warmuth-Metz
AU  - B. Bison
AU  - N.U. Gerber
AU  - T. Pietsch
AU  - M. Hasselblatt
AU  - M.C. Frühwald
TI  - Bone Involvement in Atypical Teratoid/Rhabdoid Tumors of the CNS
AID  - 10.3174/ajnr.A3554
DP  - 2013 May 16
TA  - American Journal of Neuroradiology
4099  - http://www.ajnr.org/content/early/2013/05/16/ajnr.A3554.short
4100  - http://www.ajnr.org/content/early/2013/05/16/ajnr.A3554.full
AB  - SUMMARY: Destruction of the bony structures of the skull is rare in primary tumors of the CNS. In low-grade gliomas, modeling of the skull is caused by slow growth and chronic pressure. Bony destruction is exceptional even in highly malignant gliomas. Atypical teratoid/rhabdoid tumors of the CNS are highly malignant neoplasms diagnosed with an increasing frequency, mainly in young children. On imaging, these tumors exhibit distinct though not specific morphologic features including peripheral cysts, bleeding residues, and a distinct bandlike, wavy pattern of enhancement. A combination of these single characteristics together with a predilection for young age is suggestive of an atypical teratoid/rhabdoid tumor. We present 5 children with an atypical teratoid/rhabdoid tumor affecting the adjacent bone. These 5 patients were collected in our imaging data base for childhood atypical teratoid/rhabdoid tumor consisting of 91 children at the time of this evaluation and thus representing 6.6%. The mean age of children with bone involvement (4.8 years) was above the average age (2 years) of all children in the data base. We add this rare feature to the list of typical features in MR imaging and CT morphology of atypical teratoid/rhabdoid tumor. Abbreviations AT/RTatypical teratoid/rhabdoid tumor