Cysts of the Mastoid Bone

Temporal bone mucocele with extension to mastoid in a 60-year-old male: a case report and literature review

“…Our patient developed profound hearing loss in the right ear, which can be explained due to a destructive lesion in the right temporal mastoid, severely narrowing of the external auditory canal and destruction of the middle ear ossicles, which is also similar to the study by Kavanagh et al . 8 , where the patient developed conductive hearing loss due to the collapse of the ear canal secondary to erosion of the anterior wall of the mastoid cavity.…”

Primary mucocele of the mastoid: An incidental finding

“…Only a few reports of primary mastoid mucocele have been published in the literature (Table ) . Most cases were asymptomatic and discovered due to a silent swelling that eroded the mastoid lateral or anterior wall .…”

“…Only a few reports of primary mastoid mucocele have been published in the literature (Table 1). 3,4,6,8,9,11 Most cases were asymptomatic and discovered due to a silent swelling that eroded the mastoid lateral or anterior wall. 3,6,8 Symptoms correlated with an inflammatory process were sometimes reported, 4,8,9 whereas only once was the mucocele an incidental finding as in our patient.…”

“…3,4,6,8,9,11 Most cases were asymptomatic and discovered due to a silent swelling that eroded the mastoid lateral or anterior wall. 3,6,8 Symptoms correlated with an inflammatory process were sometimes reported, 4,8,9 whereas only once was the mucocele an incidental finding as in our patient. 11 The only patient where the cyst caused hearing loss was due to ear canal collapse secondary to erosion of the anterior wall of the mastoid cavity.…”

Petrous Apex Cholesterol Granuloma: Importance of Pedicled Nasoseptal Flap in Addition to Silicone T-tube for Prevention of Occlusion of Drainage Route in Transsphenoidal Approach—A Technical Note

“…4) In 1947, Waltner and Karatay described a large CG involving the mastoid cavity and petrous apex. 5) Subsequently, various authors reported cholesterol cysts of the petrous apex as a distinct clinical entity. 6 , 7) CGs of the petrous apex are uncommon because a minority of temporal bones (30%) show pneumatization of the petrous apex.…”