Solitary eosinophilic granuloma of mandibular condyle: literature review and report of a rare case.

Solitary eosinophilic granuloma (EG) is traditionally included as 1 of the 3 clinical manifestations of the histiocytosis-X group of diseases, which also encompasses Hand-Schuller-Christian disease and Letterer-Siwe disease. EG is the most common lesion in the spectrum of disorders under the classification of Langerhans cell histiocytosis. EG represents the monostotic form of the disease with the head and neck region representing the most common site of initial presentation. We report a rare case of solitary EG involving mandibular condyle in a 49-year-old male patient, which is the first reported case in Indian literature.