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MR imaging of the pituitary gland in central precocious puberty

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Abstract

Cranial magnetic resonance imaging was performed in 17 children with central precocious puberty (CPP) and 19 aged-matched controls to compare the appearance of the pituitary gland. Gland size was measured on T1-weighted sagittal and coronal images. The gland was graded according to the concavity or convexity of the upper surface, and the signal intensity of the gland was assessed visually. The mean pituitary volume in 13 CPP children without hypothalamic tumor (292.6 mm3) was significantly greater than that in normal controls (181.35 mm3). The mean volume for the four CPP children with hypothalamic tumor was smaller (145.0 mm3). Compared to controls, the upper pituitary surface in CPP patients appeared convex in a higher proportion. The anterior pituitary was isointense to pons in all patients and controls. Although the posterior pituitary bright spot was present in 14 controls and 11 CPP patients, none with hypothalamic tumor showed it.

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Authors and Affiliations

  1. Department of Radiology, The University of Iowa College of Medicine, 52242, Iowa City, Iowa, USA

    S. C. S. Kao & T. M. Simonson

  2. Department of Pediatrics, The University of Iowa College of Medicine, Iowa City, Iowa, USA

    J. S. Cook & J. R. Hansen

Authors
  1. S. C. S. Kao
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  2. J. S. Cook
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  3. J. R. Hansen
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  4. T. M. Simonson
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Kao, S.C.S., Cook, J.S., Hansen, J.R. et al. MR imaging of the pituitary gland in central precocious puberty. Pediatr Radiol 22, 481–484 (1992). https://doi.org/10.1007/BF02012988

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  • DOI: https://doi.org/10.1007/BF02012988

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