Background
Case presentation
Literature review
Case | Author/year | Age/sex | Duration of disease | Symptoms and signs | Radiological findings | Surgical findings | Postoperative complications |
---|---|---|---|---|---|---|---|
1 | 44/male | 2 years | Progressive right-sided hearing loss with a unilateral sensorineural hearing impairment | CT: a mass with a size of 2 × 3 cm with a conglomerate of dense calcification in the right CPA, moderate enhancement after contrast injection, normal internal auditory canal | Approach: translabyrinthine craniotomy twice, subtotal removal of the tumor at the initial operation, and total removal of the tumor after 5 months | Dysdiadokinesis Mild facial palsy | |
Examination: spontaneous nystagmus, gait disturbance, and a positive Romberg test | Tumor: whitish, hard, and highly vascularized | ||||||
2 | 47/male | 15 years | Progressive left-sided hearing loss with ringing and itching deep in the left canal | MRI: Hypointensity on T1WI and hyperintensity on T2WI | Approach: left posterior fossa craniotomy, total removal of the tumor after debulking | Mild facial palsy | |
Examination: no response in vestibular testing in the left labyrinth | CT: a 3 cm mass with pronounced calcification in the left CPA, enhancement after administration of contrast medium, enlarged internal auditory canal | Tumor: rubbery consistency | |||||
3 | 50/male | 2 years | Progressive right-sided hearing loss with a unilateral sensorineural hearing impairment | CT: a small mass in the right enlarged internal auditory canal with a conglomerate of dense calcification | Approach: translabyrinthine craniotomy, total removal of the tumor with preservation of the facial nerve | Complete palsy | |
Examination: not described | Tumor: adhesion to the facial nerve | ||||||
4 | 36/male | 30 years | Progressive left-sided hearing loss | MRI: a mass with a size of 3.5 × 3 × 2.5 cm in the CPA, hypointensity on T1WI and hyperintensity on T2WI, heterogeneous enhancement after gadolinium administration | Approach: left suboccipital craniotomy, removal of 90% of the tumor | Hearing was worse on the left side after surgery than before surgery | |
Examination: left hearing loss, left canal paresis | CT: significant calcification on the tumor that protruded to the enlarged internal auditory canal | Tumor: whitish, elastic, hard, fibrous, and demarcated with a rich blood supply | No facial palsy | ||||
DSA: no tumor stain | |||||||
5 | 59/female | 15 years | A long history of CPA tumor with no treatment, admitted to the hospital following an epileptic seizure | MRI: a mass with a 3 cm diameter in the CPA, heterogeneous intensity on T1WI and T2WI, heterogeneous enhancement after gadolinium administration | Approach: left suboccipital craniotomy, subtotal removal of the tumor | No facial palsy | |
Examination: left deafness, left nystagmus, and left cerebellar ataxia | CT: circular calcification in the periphery of the tumor | Tumor: yellow-grayish, soft, with rich blood supply and old hematoma inside the tumor | |||||
DSA: no tumor stain | |||||||
6 | 65/male | 3 years | Progressive left-sided hearing loss with facial numbness | MRI: hypointensity on T1WI, and heterogeneous hyperintensity on T2WI, heterogeneous enhancement after gadolinium administration | Approach: left suboccipital craniotomy, total removal of the tumor | ||
Examination: left hypoesthesia and facial palsy, and sensorineural hearing loss | CT: a mass with a 3 cm diameter in the left CPA with a conglomerate of dense calcification, and enlarged internal auditory canal | Tumor: not described | Death due to myocardial infarction | ||||
7 | 31/female | 6 months | Right-sided deafness with facial numbness | MRI: hypointensity on T1WI, and heterogeneous hyperintensity on T2WI, homogenous enhancement after gadolinium administration | Approach: left suboccipital craniotomy, total removal of the tumor | ||
Examination: hypoesthesia on the right side of the face, and right sensorineural hearing loss | CT: a mass with a 5 cm diameter in the left CPA with two local deposits of calcification at the periphery of the tumor, and enlarged internal auditory canal | Tumor: not described | Facial palsy (with unknown severity) | ||||
8 | Present case | 48/male | 3 years | Progressive left-sided hearing loss | MRI: a mass with a size of 5.42 × 4.27 × 5.35 cm in the left CPA, hypointensity on T1WI, hyperintensity on T2WI, and heterogeneous enhancement in the contrast-enhanced MRI | Approach: left suboccipital craniotomy, total removal of the tumor with preservation of the facial nerve | No improvement in left hearing |
Examination: left hearing loss, left cerebellar ataxia | CTA: a high-density patchy calcification on the left CPA, no intracranial artery malformation, and no tumor stain | Tumor: yellow-grayish in color, soft and brittle in texture with a rich blood supply, and cysts found in the center of the tumor | Mild facial palsy |