<prompt> A patient presents with hyperacusis, loss of lacrimation and loss of taste sensation in the anterior 23rd of the tongue. Oedema extends up to which level of facial nerve -Vertical partVertical part proximal to nerve to stapediusVertical part and beyond nerve to stapediusProximal to geniculate ganglion  <response>: The patient is presenting with : -Hyperacusis: - Nerve to stapedius is involved.Loss of taste sensation in anterior 23 of tongue Chorda tympani is involved.Loss of lacrimation Greater superficial petrosal nerve is involved.Thus, the lesion is at or proximal to geniculate ganglion. 