Endoscopic Transnasal Approach for Cholesterol Granuloma of the Petrous Apex.
Cholesterol granulomas are rare round or ovoid cysts. They contain cholesterol crystals surrounded by foreign bodies of giant cells and are characterized by chronic inflammation. Large cholesterol granuloma can compress surrounding tissue especially cranial nerves. There are several types of surgery for the resection of cholesterol granuloma. We describe 4 cases of cholesterol granuloma operated on via transnasal endoscopic approach. In this report, we describe radiologic and pathologic features of this lesion and explain the advantages and disadvantages of transsphenoidal endoscopic approach for these rare lesions.
Department of Neurosurgery, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Mohammad
M
Samadian
Department of Otolaryngology, Loghman Hakim Hospital, Shahid Beheshti Medical University, Tehran, Iran.
Nader
N
Akbari Dilmaghani
Department of Otolaryngology, Loghman Hakim Hospital, Shahid Beheshti Medical University, Tehran, Iran.
Navid
N
Ahmady Roozbahany
Department of Neurosurgery, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Navid
N
Farzin
Medical Student Research Committee and Social Determinant of Health Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Mohammad
M
Bahadoram