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Solitary Osteochondroma from C1 Lateral Mass causing infranuclear facial palsy

Posted Wed, 12/30/2009 - 13:05 by mailpkd
Images

SAGITTAL RECONSTRUCTION CT

CORONAL CT - Scalloping of Mandibular Ramus

Origin of the mass from Left Lateral mass of C1


Clinical History:

36 year old male with neck pain and left infranuclear facial palsy.


Findings:

Multiplanar reconstructions of the CT revealed a sessile mass arising from the left lateral mass of the C1. It encroached on the stylomastoid foramen at the exit of the facial nerve. There is scalloping of the ramus of the left mandible.


Diagnosis:

Osteochondroma of lateral mass of C1.


Discussion:

Osteochondromas are commonest benign tumors of the skeletal system. Involvement of spine is rare in sporadic solitary cases (1.3-4.1%). Most common segment to be involved is cervical spine. Solitary osteochondromas of the cervical spine may have varied clinical presentations. They may present as palpable mass, signs of spinal cord compression, dyspnoea, sleep apnoea, sudden death etc. In the present case the patient presented with infranuclear facial palsy.
Plain films followed by CT and MRI depicts these lesions well and elucidates the relation of important surrounding structures.


References / Suggested Reading:

1. Cagatay OZTURK, Mehmet TEZER, Azmi HAMZAOGLU. Solitary osteochondroma of the cervical spine causing spinal cord compression. Acta Orthop. Belg., 2007, 73, 133-136
2. Olivier Gille,Vincent Pointillart,Jean-Marc Vital. Course of Spinal Solitary Osteochondromas. SPINE 2004.30:1,E13–E19.


Author

Paresh Desai

Staff Radiologist

Goa University, Goa Medical College

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Wed, 12/30/2009 - 19:23
#1
Vikram Dogra
jdogra's picture
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Joined: 05/23/2007
Excellent case

Paresh
Thank you for submitting such an interesting case.

Dr. Vikram Singh Dogra

Professor of Radiology, Urology & BME
Associate Chair for Education and Research.
Department of Imaging Sciences
University of Rochester School of Medicine

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