Reflux
One possible explanation of chronic laryngitis is that inflammation is caused by gastro-oesophageal reflux, which causes subsequent irritation of the vocal folds. Autoimmune disorders
Approximately between 30 and 75% of persons with rheumatoid arthritis report symptoms of laryngitis. Symptoms of laryngitis are present in only 0.5–5% of people that have sarcoidosis. According to a meta-analysis by Silva et al. (2007), this disease is often an uncommon cause of laryngeal symptoms and is frequently misdiagnosed as another voice disorder. Diagnosis
Diagnosis of different forms of acute laryngitis

Laryngitis following trauma: This form of laryngitis is usually identified by obtaining a case history providing information on previous phono traumatic experiences, internal trauma caused by recent procedures as well as any previous neck injuries. Acute viral laryngitis: This form of laryngitis is characterized by lower vocal pitch as well as hoarseness. The symptoms in this form of laryngitis are usually present for less than one week, however they can persist for 3–4 weeks. This form of laryngitis might also be accompanied by upper respiratory tract symptoms such as: sore throat, odynophagia, rhinorrhea, dyspnea, postnasal discharge, and congestion. Fungal laryngitis: A biopsy and culture of abnormal lesion may help confirm fungal laryngitis. Visual diagnosis
The larynx itself will often show erythema (reddening) and edema (swelling). This can be seen with laryngoscopy or stroboscopy (method depends on the type of laryngitis).
Acquired idiopathic generalized anhidrosis (AIGA) is characterized by generalized absence of sweating without other autonomic and neurologic dysfunction.AIGA is classified into 3 subgroups: idiopathic pure sudomotor failure (IPSF), sweat gland failure (SGF), and sudomotor neuropathy, with each subgroup presenting a different pathogenesis. Diagnosis
Quantitative sudomotor axon reflex test and microneurography are used in the diagnosis of AIGA. However, these refined methods are mostly used for research purposes and not generally available.Skin biopsy analysis may play a crucial role in the identification of AIGA subgroups. See also
Hypohidrosis

References


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