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Geographic Skull
A 5 Y/O Female with Langerhans cell histiocytosis
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Result of abnormal prolifration of langerhans histiocytes
Most frequently in childrens
Has extremely variable presentation:
• Letterer-Siwe (acute disseminated form): 10%
• Hand-Schuller-Christian (chronic disseminated form):20%
• Eosinophilic granuloma (isolated bone or lung involvement): 70%
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Best diagnostic clue:
o Skull :sharply marginated lytic skull defect with beveled margins
o Mastoid :geographic destruction, soft tissue mass
o Brain :thick enhancing infundibulum
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Views: 2377
Comment
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Comment by Hertzanu Yancu on July 31, 2011 at 3:19am
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Like lateral skull view
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Comment by wesam a shamma on June 6, 2011 at 1:01pm
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Good case
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lateral skull x.ray showed:-
- large radiolucent macrolobulated area at the tempro-occipital region,involved sphenoid bone and the clvarial tablets.
- widening the diploic area in clvarium of skull,with lucent part, and sclerotic part.
-all these consistant with bengin condition of bony lesion likely bone marrow tumer.
- sclerotic sphenoid bone.with thichening cortical bone no erosion.
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Comment by M.T Niknejad on April 28, 2011 at 6:02am
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Thanks ...
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Comment by radRounds Radiology Network on April 21, 2011 at 11:13pm
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Nice case! Congratulations - this case was featured!
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Comment by Dr ritu lokhande on April 21, 2011 at 2:26am
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Great description .thanx.
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