Eosinophilic Granuloma: A Rare and Often Benign Condition Presenting as a Lump on the Head, which was Easily Treated

Abstract

Eosinophilic granuloma is a localized, non-invasive form of Langerhans cell histiocytosis. It usually develops in the long bones and is more frequent in children under the age of 10 years. It is very rare in adults. We present the case of a young woman admitted to hospital for persistent refractory left parietal headache, later revealed to be caused by an eosinophilic granuloma.

Multifocal eosinophilic granuloma with femoral epiphyseal lesion mimicking an aneurysmal bone cyst

“…Eosinophilic granuloma is a type of benign bone tumor, and the mildest subtype of Langerhans cell histiocytosis. This condition has been described in many different anatomic locations within the human body [2 , 3 , [6] , [7] , [8] , 11 , 12] , and may present either in a single or multiple foci. This disease typically affects the axial skeleton, however, may also affect long bones with the majority of lesions occurring in the diaphysis [1] .…”

“…It involves the axial skeleton and diaphysis long bones as well as the soft tissues adjacent to the bone causing localized bone pain and tender soft tissue swelling [4] . It has a slight male predominance most commonly affecting the children and young adults; however, it can rarely be seen in adults [5] , [6] , [7] .…”