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Trichorrhexis nodosa is a defect in the hair shaft characterized by thickening or weak points (nodes) that cause the hair to break off easily. [ 2 ] [ 3 ] : 636 This group of conditions contributes to the appearance of hair loss , lack of growth, and damaged-looking hair.
The ICD-10 established a set of diagnostic criteria for PCS in 1992. [38] In order to meet these criteria, a patient has had a head injury "usually sufficiently severe to result in loss of consciousness" [33] [39] and then develop at least three of the eight symptoms marked with a check mark in the table at right under "ICD-10" within four weeks.
Patients with tufted hair folliculitis report pain, scalp puffiness, and/or itching along with gradually increasing hair loss. Moreover, reports of perifollicular crusting and scaling are common. Clusters of anagen hairs arising from the scalp in the "doll's hair" pattern are the most common clinical feature in tufted hair folliculitis.
Often there is an underlying psychosomatic cause, such as stress, depression or anxiety. [2] Only a few studies have been conducted on this condition. A theory behind the condition is that nerves innervating scalp hair follicles send pain messages back to the brain when the follicle no longer has a hair in it, in a similar way to phantom limb ...
[12] [13] All traumatic brain injuries are head injuries, but the latter term may also refer to injury to other parts of the head; [14] [15] [16] however, the terms head injury and brain injury are often used interchangeably. [17] Similarly, brain injuries fall under the classification of central nervous system injuries [18] and neurotrauma. [19]
Causes of Telogen Effluvium. Telogen effluvium hair loss is usually caused by a “shock to the system,” whether that’s illness, injury, or a stressful life event.. When this happens, hair ...
You've probably heard that you can stave off the appearance of grays in your mane by keeping stress levels low.
[10] Pycnodysostosis also causes problems that may become evident with time. Aside from the broken bones, the distal phalanges and the collar bone can undergo slow progressive deterioration. Vertebral defects may permit the spine to curve laterally resulting in scoliosis. The dental problems often require orthodontic care and cavities are common.