Cholesterol granuloma of the sphenoid sinus: An unusual sphenoid sinus lesion

Radiologically Unusual Presentation of Cholesterol Granuloma in the Sphenoid Sinus

“…However, in some cases of mucocele including inspissated proteinaceous materials or internal hemorrhage may occasionally show high signal intensity on T1WI, misleading to the diagnosis of cholesterol granuloma, demanding pathologic confirm for differentiation. 5,16) In our cases, the content of the surgical field was filled with viscous fluid with necrotic debris and it was like a mucocele. Shirataki, et al 17) histopathologically classified cholesterol granuloma into three groups depending on the amount of cholesterol clefts, hemorrhagic foci, or various cells.…”

Sphenoid sinus aspergilloma clinically mimicking as malignancy—a case report

“…However, characteristic CT and MRI findings helped to reach the diagnosis of fungal mucocele. Since the sinus was expansile and had T1 hyper intensity, other differentials were also ruled out based on imaging findings which have been tabulated in Table 1 [7][8][9].…”

Cholesterol Granuloma as a Late Complication of Endoscopic Sinus Surgery

“…In all of them, cholesterol granuloma was diagnosed as a primary pathology, while investigating atypical symptoms such as headache and light-headedness. In three of them it has been associated with compressive optic neuropathy [4,6,7]. This is the first case where cholesterol granuloma is presented as a late complication of functional endoscopic sinus surgery for the removal of a mucocele of the sphenoid sinus, associated with convergence insufficiency.…”

“…Cholesterol granuloma of the sphenoid sinus is a rare entity. To date there are five relevant reports referring to the sphenoid sinus (Table 1) [3][4][5][6][7]. In all of them, cholesterol granuloma was diagnosed as a primary pathology, while investigating atypical symptoms such as headache and light-headedness.…”