Orbital sinus histiocytosis: MR appearance.
This case report describes the appearance of orbital sinus histiocytosis by magnetic resonance (MR) imaging. Four years after the remission of unilateral cervical adenopathy due to sinus histiocytosis, a 6-year-old girl developed orbital sinus histiocytosis with extension into the middle cranial fossa. Computed tomography demonstrated a homogeneously enhancing lesion; on MR, this tumor was isointense to gray matter on T1-weighted, proton density, and T2-weighted images. Vascular embarrassment was clearly shown by MR.
Burton
E M
EM
Department of Radiology, LeBonheur Children's Medical Center, Memphis, TN 38103.
Hickman
M
M
Boulden
T F
TF
Joyner
R E
RE
Tierney
M B
MB
D002648:Child; D005260:Female; D006801:Humans; D008206:Lymphatic Diseases / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D009918:Orbital Neoplasms / Q000175:diagnosis*