This report describes general characteristics of the group of diseases classified as neuropathy, hereditary sensory and autonomic (HSAN). Hereditary sensory and autonomic neuropathy is a genetically heterogeneous disorder with multiple causative genes and mapped loci. HSAN subtypes, as defined by OMIM, can be found in the 'Related Diseases' section, below, by following the link in the "OMIM phenotypic series" section or in the table, which includes links to more detailed reports for subtypes that have been investigated using fly models.
[updated Jul. 2017 by FlyBase; FBrf0222196]
Hereditary sensory and autonomic neuropathies (HSANs) occur much less frequently than do the primary hereditary motor sensory neuropathies (HMSNs) (http://www.uptodate.com/contents/hereditary-sensory-and-autonomic-neuropathies).
Hereditary sensory and autonomic neuropathies (HSN/HSAN) are clinically and genetically heterogeneous disorders of the peripheral nervous system that predominantly affect the sensory and autonomic neurons (Auer-Grumbach, 2013; pubmed:23931820).
The hereditary sensory and autonomic neuropathies (HSAN), which are also referred to as hereditary sensory neuropathies (HSN), are a genetically and clinically heterogeneous group of disorders associated with sensory dysfunction, typically characterized by characterized by insensitivity to pain and resulting in injury to the fingers, tongue, lips, and other distal appendages. [from MIM:162400, MIM:616488; 2017.07.10]
One of the major feature of the HSANs is loss of large myelinated and unmyelinated fibers. (http://www.uptodate.com/contents/hereditary-sensory-and-autonomic-neuropathies).