Primary cysts of the mastoid process

Abstract

Two patients with primary mastoid cysts are presented. These examples stress the importance of regular follow-up of patients with chronic serous otitis media so that the complications or associated abnormalities may be treated early prior to extensive destructive erosion. The formation of these cysts may be due to changes brought about by chronic serous otitis media, or they may be of congenital origin with middle ear effusion as a sequela.

Wideband energy reflectance findings in presence of normal tympanogram in children with Down's syndrome

“…More specifically, abnormal mechano-acoustical properties of the middle ear in DS may be due to one or a combination of these possible pathologies: (a) abnormally small middle ear space and mastoid due to hyperplasia or mesenchymal occlusion [56]; (b) sclerosis of mastoid bones [56]; (c) mastoid cyst as a consequence of chronic serous otitis media [57]; (d) presence of loose tightening of middle ear joints during development [58]; and (e) abnormal orientation of the TM [59]. Feeney et al [24] reported that middle ear disorders mainly affect ER at a narrow range of frequencies depending on the type of the disorder.…”

Primary mastoid cyst

“…2 They described these two cases as primary mastoid cysts. 2 They described these two cases as primary mastoid cysts.…”

“…Mastoid cysts are rare and usually secondary to infection or trauma 1 , 2 . Primary mastoid cyst is even rarer, with only one true case previously reported.…”

Primary mucocele of the mastoid: An incidental finding

“…The obstruction of a natural drainage pathway is considered the pathogenetic basis of a mucocele, although a mucous retention cyst that gradually enlarges has been suggested as an alternative hypothesis in temporal bone . Within temporal bone, primary or secondary mucoceles have been only rarely observed with few descriptions prevalently in the mastoid . We present a new case of primary mastoid mucocele that was an incidental finding during work‐up for progressive sensorineural hearing loss.…”

“…1,2 Within temporal bone, primary or secondary mucoceles have been only rarely observed with few descriptions prevalently in the mastoid. [1][2][3][4][5][6][7][8][9][10][11] We present a new case of primary mastoid mucocele that was an incidental finding during work-up for progressive sensorineural hearing loss.…”