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Indolent Intracranial Mucormycosis: Case Report

Zoran Rumboldta and Mauricio Castilloa

a From the Department of Radiology, University of North Carolina School of Medicine, Chapel Hill, NC



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  		FIG 1. Images from the case of a 16-year-old male patient with acute lymphatic leukemia who was treated with unrelated bone marrow transplant and developed graft versus host disease.

A, Midsagittal spin-echo T1-weighted image (550/12 [TR/TE]; matrix, 256 x 218; field of view, 230; section thickness, 5 mm) shows subtle areas of decreased signal intensity in the bone marrow (arrow) of the clivus. For a 16-year-old patient, the signal may still be heterogenous; however, this is more prominent than is usually seen. The prepontine cistern is normal. The sphenoid sinus contains a fluid level. The lateral ventricles are prominent.

B, Corresponding T1-weighted image obtained 3 months after the image shown in A shows further decrease in signal intensity involving most of the clivus. There is mucosal thickening in the adjacent posterior aspect of the sphenoid sinus. A tract extending horizontally from this thickened mucosa through the clivus appears to be present. A small soft-tissue mass (arrowhead) in the superior aspect of the prepontine cistern adjacent to the basilar artery is seen.

C, Image obtained 9 months after the image shown in B shows that the mass has grown and fills most of the prepontine and interpeduncular cisterns. The pituitary stalk is also thick. The bone marrow throughout the clivus is markedly hypointense, and there is mucosal thickening and an irregular rim in the posterior aspect of the sphenoid sinus. The ventricular size is unchanged.

D, Axial view fast spin-echo T2-weighted image (5500/96; field of view, 200; matrix, 512 x 256; section thickness, 3 mm), obtained at the same time as the image shown in C, shows that the mass (m) is of low signal intensity and extends along the posterior cerebral arteries and posterior communicating arteries. The thick pituitary stalk is seen within the suprasellar cistern.

E, Axial view contrast-enhanced spin-echo T1-weighted image (850/14; field of view, 200; matrix, 512 x 256; section thickness, 3 mm) shows intense enhancement of the mass and its extension to the pituitary stalk. The enhancing mass spreads along the internal carotid artery on the right and into the left ambient cistern.





Copyright © 2009 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X