| http://www.w3.org/ns/prov#value | - Paranasal sinus or mastoid lesions were found in 55% of patients versus 20% of controls, and accentuated Virchow-Robin spaces in 70% of patients versus 27% of controls.Biopsy: Lytic bone lesions, skin, and lymph nodes are the most frequent sites biopsied for diagnosis of LCH. A liver biopsy is indicated when a child with LCH presents with hypoalbuminemia not caused by gastrointestinal LCH or other
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