RT Journal Article SR Electronic T1 Fluid-fluid level in Langerhans cell histiocytosis of the skull JF Neurosciences Journal JO Neurosciences (Riyadh) FD Prince Sultan Military Medical City SP 47 OP 49 VO 11 IS 1 A1 Albadr, Fahad B. A1 Elgamal, Essam A. A1 Alorainy, Ibrahim A. A1 Hassan, Hamdy H. YR 2006 UL http://nsj.org.sa/content/11/1/47.abstract AB We present a case of solitary eosinophilic granuloma in the skull of a 6-year-old Saudi boy. This osteolytic lesion has fluid-fluid level on CT and MRI. We are presenting a rare radiological finding of eosinophilic granuloma.