Ménière's disease turn, is strongly associated with developing MD, but not everyone with EH develops MD: "The relationship between endolymphatic hydrops and Meniere's disease is not a simple, ideal correlation." Additionally, in fully developed MD the balance system (vestibular system) and the hearing system (cochlea) of the inner ear are affected, but there are cases where EH affects only one of the two systems strong enough to cause symptoms. The corresponding subtypes of MD are called "vestibular MD", showing symptoms of vertigo, and "cochlear MD", showing symptoms of hearing loss and tinnitus. The mechanism of MD is not fully explained by EH,
Paget's disease of bone of arthritis or other disorders, and so diagnosis may be delayed. Paget's may first be noticed as an increasing deformity of a person's bones. Paget's disease affecting the skull may lead to loss of hearing in one or both ears due to compression of the nerves in the inner ear. Rarely, skull involvement may lead to compression of the nerves that supply the eye, leading to vision loss. Paget's disease is a frequent component of multisystem proteinopathy. Advanced Paget's disease may lead to other medical conditions, including: Paget's disease is "not" associated with osteoporosis. Although Paget's disease and osteoporosis can