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. 2001 Dec 31;2(4):222–230. doi: 10.3348/kjr.2001.2.4.222

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Copyright © 2001 The Korean Radiological Society

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 8 — Langerhans cell histiocytosis in a 15-year-old boy.

A. Sagittal T1-weighted MR image (600/15) demonstrates a uniformly thickened pituitary stalk (arrow). The posterior lobe no longer shows high signal intensity.

B. Contrast-enhanced sagittal T1-weighted MR image (600/15) shows strong enhancement of the lesion (arrow). The high signal intensity in the sphenoid sinus presumably represents fat marrow associated with poor pneumatization. Langerhans cell histiocytosis was pathologically proven.