Langerhans cell histiocytosis (LCH) is a rare histiocytic tumour in adult. We report a case of LCH involving skull bones in a 35year old lady who presented with fever. headache and diabetes insipidus since two years. Radiological examination revealed osteolytic lesions in the parietal and occipital bones along with a solid. https://www.markbroyard.com/great-pick-ego-sebitar-solution-500ml-supply-limited-choice/