ABSTRACT
Summary@#Trichorrhexis nodosa (TN) is a hair shaft disorder characterized by fragile hair with nodes on the hair shaft. Here we report a case of aquired localised trichorrhexis nodosa and describe the importance of noninvasive tools like trichoscopy and light microscopy in the diagnosis of an isolated TN.
ABSTRACT
No abstract available.
Subject(s)
Dermoscopy , Hair Diseases , Microscopy, Electron, Scanning , PruritusABSTRACT
Trichorrhexis nodosa (TN) is the most common hair shaft anomaly and is caused by physical or chemical trauma. It is characterized by nodular swellings of the hair shaft accompanied by frayed fibers and loss of cuticle. The fibers then fracture and the shaft breaks with the resultant appearance of a splayed paintbrush or fan-like array. Trichorrhexis nodosa is classified into congenital TN and acquired TN. Acquired TN is further classified into three groups, acquired localized TN, acquired proximal TN, and acquired distal TN. To date, no case of distal trichorrhexis nodosa has been reported in Korean dermatologic literature. We herein report a case of acquired distal trichorrhexis nodosa in a 12-year-old boy.
Subject(s)
Child , Humans , HairABSTRACT
Trichorrhexis nodosa is the most common hair shaft anomaly in which there is a chemical or physical traumatic injury, characterized by the development of node-like swelling, fragility of the shaft and paint brush effect on the side of the fracture. We report two cases of trichorrhexis nodosa in 15-year-old girl and 16-year-old-boy, occurring as results of repetitive hot-comb straightener and excessive scratching. Scanning electroscopic findings are typical to trichorrhexis nodosa.
Subject(s)
Adolescent , Humans , Hair , PaintABSTRACT
A 12-year-old girl presented with a 1-week duration of hair loss associated with splitting of the hair ends and whitish dots on the occipital hairs. On microscopic examination, a longitudinal splitting of the hair shaft with reconstitution of the normal hair distal to the fracture, nodular swellings, with the appearance of broomsticks pushed into one another, at the site of whitish swellings, and the flattening and twisting of the hair shaft around the long axis were demonstrated. Minor trauma to injury-prone hair is a common cause of hair shaft defects, however the reports with the combined conditions are insufficient in the literature. We describe a patient with central trichoptilosis associated with localized trichorrhexis nodosa and pili torti.
Subject(s)
Child , Female , Humans , Axis, Cervical Vertebra , HairABSTRACT
Circumscribed trichorrhexis nodosa is a rare condition in which trichorrhexis nodosa occurs in a small circumscribed patch of the scalp hair, or in the moustache or beard. We herein report a patient with circumscribed trichorrhexis nodosa on the scalp occurring as a result of repetitive scratching due to pruritus associated with scalp eczema and showing improvement after avoidance of the scratching.
Subject(s)
Humans , Eczema , Hair , Pruritus , ScalpABSTRACT
Trichorrhexis nodosa is the most common hair shaft anomaly in which there is a distinctive response to injury. The hair is fragile and on examination pale `node-like' swelling may be observed. It may affect normal hair following excessive or repeated trauma, or may occur after minimal trauma if there is an inherent defect in keratin synthesis causing abnormally brittle hair. We report a case of localized trichorrhexis nodosa in a 42-year-old male who had scratched frequently for the relief of the pruritus in the parietal area. Scanning electron microscopy revealed longitudinal fissures and fracture in the cortex. A paint brush effect was noted at the site of fracture.
Subject(s)
Adult , Humans , Male , Hair , Microscopy, Electron, Scanning , Paint , Pruritus , RabeprazoleABSTRACT
Trichorrhexis nodosa(TN) denotes small node-like swelling with a loss of cuticle of the hair shaft through which the hair readily fractures. The basic cause of TN is mechanical or chemical trauma, and a contributing factor is an inherent weakness of the hair shaft. We report a case of localized TN in a 37-year-old male. He had an ovoid hair patch with multiple small white-gray dotted and stubby hairs localized to the right occipital scalp. TN is known to be the commonest of all hair shaft anomalies (Price, 1975). However TN is rarely reported, and there have been only four reports in Korean dermatological literature, to our knowledge, which might be due to underdiagnosis of this disorder. We postulated that diagnostic difficulty lies in the discrepancy between terminology and gross morphological findings.
Subject(s)
Adult , Humans , Male , Fibrinogen , Hair , ScalpABSTRACT
We report a case of trichorrhexis nodosa in a 27-year-old male. Scanning electron microscopic findings reveals those of typical trichorrhexis nodosa nodal swelling of affected hair showed longitudinal fissures and fractures in the cortex. A paintbrush effect was noted at the site of fracture. Simple avoidance of trauma gave some regrowth of hairs.
Subject(s)
Adult , Humans , Male , HairABSTRACT
We report a case of trichorrhexis nodosa in 16-year-old male. Multiple broken hair patches were seen on the both eyebrows. Scanning electron micrascopic findings revealed typical trichorrhexis nodosa; nodular swelling of hair shaft, loss of hair cuticle, longitudinal fissuring and fracture of hair cortex, and paintbrush effect on the side of fracture. Simple avoidance of trauma gave some regrowth of hair. Intralesinional administration of triamcinolone acetonide was not to be effective.