TY - JOUR T1 - Proton MR spectroscopic characteristics of a presumed giant subcortical heterotopia. JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 426 LP - 429 VL - 14 IS - 2 AU - M Castillo AU - L Kwock AU - J Scatliff AU - S Gudeman AU - R Greenwood Y1 - 1993/03/01 UR - http://www.ajnr.org/content/14/2/426.abstract N2 - A newborn presented with a mass replacing the left cerebral hemisphere. Although the internal signal characteristics of the lesion were suggestive of disorganized gray and white matter, a true neoplasia such as a ganglioglioma could not be totally excluded. Biopsy is not recommended in these cases since the results may be misleading. Proton MR spectroscopy was used; this technique also suggested the hamartomatous nature of the lesion. Based on the clinical course and the imaging features, conservative therapy and observation were undertaken instead of surgery. At 6 months of age, the patient is stable and the lesion is unchanged. ER -