Atypical otolithiasis usually refers to a specific type of otolithiasis. It differs from typical otolithiasis in terms of symptoms, signs, tests, and treatment.
Symptoms: Patients with atypical otolithiasis do not have obvious symptoms, but only a short period of vertigo when looking down or up, or a long period of unrelieved vertigo, whereas typical otolithiasis will have a short period of vertigo when turning over, laying down, or sitting up in certain positions.
In terms of physical signs, the signs of otolithic patients are usually found after a varus test examination and manifest as various types of nystagmus, but patients with atypical otolithiasis may not induce nystagmus after a single varus test, and may need to go through several varus tests before nystagmus can be induced.
In terms of auxiliary examination, patients with otolithiasis can usually identify the lesion side of the otolith and the involved semicircular canals after the dislocation test, and the otolith can be repositioned by manipulation or machine; whereas, in atypical patients, the otoliths may not be located in the semicircular canals, but rather in the vestibule, and the patients need to be diagnosed and treated by an experienced doctor in order to have the otoliths repositioned.
It is important to note that for atypical otoliths, it is necessary to find an experienced doctor to conduct a detailed examination and judgment to avoid delays.