Cerebellopontine Angle Tumors

Fig. 14.1. Radiological appearances of CPA lesions. a T1-weighted axial image with contrast. Bilateral acoustic neuromas in a patient with NF-2. bT1-weighted axial image with contrast showing a CPA meningioma. Notice the normal appearance of the internal auditory meatus and the broad origin of the tumor. The T2-weighted image showed increased signal in the compressed cerebellar hemisphere. c T1-weighted axial image showing a CPA cholesteatoma. This lesion did not enhance following contrast injection. d T1-weighted coronal image with contrast showing a large CPA glomus jugulare tumor.

Fig. 14.1. Radiological appearances of CPA lesions. a T1-weighted axial image with contrast. Bilateral acoustic neuromas in a patient with NF-2. bT1-weighted axial image with contrast showing a CPA meningioma. Notice the normal appearance of the internal auditory meatus and the broad origin of the tumor. The T2-weighted image showed increased signal in the compressed cerebellar hemisphere. c T1-weighted axial image showing a CPA cholesteatoma. This lesion did not enhance following contrast injection. d T1-weighted coronal image with contrast showing a large CPA glomus jugulare tumor.

across all frequencies. In 7%, low tone loss is evident whilst, in 6%, a trough-shaped loss is seen, with relative preservation of hearing at high and low frequencies [8].

Speech discrimination tests determine the ability of the patient to identify a taped series of words presented at 40 dB above the speech threshold. The quality of hearing can be classified according to the speech discrimination score combined with the pure tone audiogram loss [9]. Hearing is described as excellent if there is a pure tone loss of 0-30 dB with 70-100% speech discrimination. Other grades (serviceable, non-serviceable, poor and absent) represent increasingly poor auditory function. Poor speech discrimination that is out of proportion to the degree of pure-tone loss is a feature of acoustic neuromas. This is attributed to the

Cure Your Yeast Infection For Good

Cure Your Yeast Infection For Good

The term vaginitis is one that is applied to any inflammation or infection of the vagina, and there are many different conditions that are categorized together under this ‘broad’ heading, including bacterial vaginosis, trichomoniasis and non-infectious vaginitis.

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