Presentation
Power, bulk, gait, and coordination were intact, but distal hyporeflexia was present. Tinel signs were present at the wrists and elbows. No nerves could be palpated. Hammertoes and high arches were present. [emedicine.medscape.com]
The offspring who inherited two mutant genes presented fully with the disease. [en.wikipedia.org]
Charcot–Marie–Tooth Disease type 4C: Novel mutations, clinical presentations, and diagnostic challenges. Muscle and Nerve (2018). doi:10.1002/mus.25981 Kalaydjieva, L. et al. [mda.org]
Neurologic
- Hyporeflexia
On examination, most patients with CMT exhibit distally dominant weakness, hyporeflexia, and muscle atrophy affecting the legs earlier and more significantly than the arms. [emedicine.medscape.com]
Treatment
Congenital Myasthenic Syndromes: a Clinical and Treatment Approach. Current treatment options in neurology, 20(9), 36. https://doi.org/10.1007/s11940-018-0520-7 Rodríguez Cruz, P. M., Palace, J., & Beeson, D. (2018). [igenomix.es]
Undiagnosed PMP22 deletions in an oligosymptomatic patient may complicate the treatment and diagnosis of an acquired neuromuscular disease. [emedicine.medscape.com]
This disease is the most commonly inherited neurological disorder affecting about one in 2,500 people.[1][2] There are not currently curative treatments for this disorder, with care focused on maintaining function. [en.wikipedia.org]
Prognosis
"[23] Several corrective surgical procedures can be done to improve the physical condition of the affected individuals.[24] Prognosis[edit] The severity of symptoms varies widely even for the same type of CMT. [en.wikipedia.org]
Etiology
Arthrogryposis (multiple congenital contractures): Diagnostic approach to etiology, classification, genetics, and general principles. European Journal of Medical Genetics, 57(8), 464-472. doi:10.1016/j.ejmg.2014.03.008 Solicitar información [igenomix.es]
Epidemiology
Epidemiologic Study of Charcot-Marie-Tooth Disease: A Systematic Review. Neuroepidemiology. 2016;46(3):157-65. doi: 10.1159/000443706. Epub 2016 Feb 6. Review. [medlineplus.gov]
Epidemiologic Study of Charcot-Marie-Tooth Disease: A Systematic Review. Neuroepidemiology (2016). doi:10.1159/000443706 Reilly, M. M. Axonal Charcot-Marie-Tooth disease: the fog is slowly lifting! [mda.org]
^ "Physical Medicine and Rehabilitation for Charcot–Marie–Tooth Disease: Background, Pathophysiology, Epidemiology". Emedicine.medscape.com. Retrieved 2016-11-13. ^ Le, Tao; Bhushan, Vikas (6 January 2014). First Aid for the USMLE Step 1 2014. [en.wikipedia.org]
Pathophysiology
^ "Physical Medicine and Rehabilitation for Charcot–Marie–Tooth Disease: Background, Pathophysiology, Epidemiology". Emedicine.medscape.com. Retrieved 2016-11-13. ^ Le, Tao; Bhushan, Vikas (6 January 2014). First Aid for the USMLE Step 1 2014. [en.wikipedia.org]
Importantly, CMT1A has one of the highest de novo mutation rates, similar to neurofibromatosis type 1, as discussed in Pathophysiology. Consequently, cases occur in which a family history is truly absent. [emedicine.medscape.com]
Prevention
This prevents the synapses from functioning.[12] X linked CMT and Schwann cells[edit] CMT can also be produced by X-linked mutations, and is named X-linked CMT (CMTX). [en.wikipedia.org]