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Patient surveys in the U.S. by the national Acoustic Neuroma Association (1998, 2007–08, 2012, 2014) showed that the percentage of diagnosed tumors 1.5 cm or less increased significantly from 23% to 47%. Researchers in Denmark reported (2004): "The size of diagnosed tumors has decreased from a median of 35 mm in 1979 to 10 mm in 2001."
There are conflicting studies on the association between acoustic neuromas and cellular phone use and repeated exposure to loud noise. In 2011, an arm of the World Health Organization released a statement listing cell phone use as a low grade cancer risk. The Acoustic Neuroma Association recommends that cell phone users use a hands-free device.
Acoustic neuroma (vestibular schwannoma) ... It charts the thresholds of hearing sensitivity at a selection of standard frequencies between 250 and 8000 Hz. There is ...
There are several different surgical techniques for the removal of acoustic neuroma. [19] The choice of approach is determined by size of the tumour, hearing capability, and general clinical condition of the person. The retrosigmoid approach offers some opportunity for the retention of hearing.
All types of brain tumors may produce symptoms that vary depending on the size of the tumor and the part of the brain that is involved. [2] Where symptoms exist, they may include headaches, seizures, problems with vision, vomiting and mental changes. [1] [2] [7] Other symptoms may include difficulty walking, speaking, with sensations, or ...
A nerve sheath tumor is a type of tumor of the nervous system (nervous system neoplasm) which is made up primarily of the myelin surrounding nerves.Nerve sheath tumors can be benign or malignant, and may affect both the peripheral and central nervous systems.
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A neuroma (/ nj ʊəˈr oʊ m ə /; plural: neuromata or neuromas) is a growth or tumor of nerve tissue. [1] Neuromas tend to be benign (i.e. not cancerous ); many nerve tumors , including those that are commonly malignant , are nowadays referred to by other terms.