recurrence of cholesteatoma mimicking dural herniation

Recurrence of Cholesteatoma Mimicking Dural Herniation

Recurrence of Cholesteatoma Mimicking Dural Herniation

A 25 year old man was admitted to otorhinolaryngology department with a mass in the ear canal. The patient had a history of tympanoplasty with mastoidectomy in another centre (for chronic otorrhea) 2 years earlier. Details of the surgery were not available. He had no discharge during this time and he came to our hospital for routine follow-up visits. On otomicroscopy a white mass was noticed in...

Dural lesions mimicking meningiomas.

Recently, a number of neoplastic and nonneoplastic entities have been reported that radiographically and clinically mimic meningiomas. Because these lesions occur infrequently and may resemble a meningioma during intraoperative analysis, they may not be considered in the differential diagnosis. This review (and case illustrations) considers some of the newly recognized and notable lesions that ...

Serpiginous cholesteatoma mimicking a vascular channel.

A 36-year-old male who had history of hearing loss since childhood presented with a chronically discharging right ear. HRCT temporal bones revealed non-dependent opacification in the epiand meso-tympanum with medially displaced head of malleus, erosion of incus and the tegmen tympani suspicious for an attic cholesteatoma. In addition, there was a serpiginous structure seen extending across the ...

Dural metastasis mimicking meningioma: an interesting case.

Dural metastasis is a rare entity in clinical practice. We report a case of dural metastasis secondary to thyroid carcinoma, which on both preoperative CT and MRI and at surgery had the typical appearance of a meningioma. Histopathological findings confirmed metastatic follicular thyroid carcinoma as a primary site. Although rare, dural metastases can mimic a meningioma. Our experience in this ...

Giant arachnoid granulation mimicking dural sinus thrombosis

Arachnoid granulations (AG) are composed of dense, collagenous connective tissue that includes clusters of arachnoid cells. They tend to invaginate into the dural sinuses, through which cerebrospinal fluid enters the venous system. AG are most commonly seen at the junction between the middle and lateral thirds of the transverse sinuses near the entry sites of the superficial veins. Presently de...