Temporal bone Cholesterol Granuloma

Manasse was first reported cholesterol granuloma of the middle ear in 1917. Shambaugh in 1929 described idiopathoc hemotympanum as a cause to the development of cholesterol granuloma of middle ear. Cholesterol granuloma have been seen in multiple area of the human body where cholesterol crystals may exist such as the lungs, breasts, peritoneum, mediastinum, liver, spleen, thyroid, kidneys, lymph nodes, testis, facial skeleton, skull, and the temporal bones. It has also been seen the skull, in the paranasal sinuses mostly in the frontal sinus. The most common site of Cholesterol granuloma is temporal bone. There is some literatures reported intracranial Cholesterol granuloma in temporal lobe, and CPA. Bilateral middle ear cholesterol granuloma was also reported, it is rare in children.