MONILIFORM HAIRS (MONILETHRIX)
1892; Oxford University Press; Volume: 4; Issue: 6 Linguagem: Inglês
10.1111/j.1365-2133.1892.tb16799.x
ISSN1365-2133
Autores Tópico(s)Medicine and Dermatology Studies History
ResumoMONILIFORM HAIRS (NONILETHRIX).Nodosa," considering that this term is much more applicable to the condition than to that to which it is usually applied, as " the hairs are really nodose as well as brittle.""Crockert uses the name monilethrix," which has the advantage of being short, and which expresses very well the clinical appearances.Behrend suggests the cumbrous pathological definition, " Aplasia Pilorum Intermittens seu Moniliformis," on the ground that the aplasia, as pointed out by Virchow, is the essential part of the disease, and not the n0dosities.fBefore describing my case, I shall review the cases of the disease which have been published up to the present.-Walter Smith's first case.$-MaryM., a dressmaker, aged 19, of fair complexion, with dark hair.She had " ringworm " at the age of three ; with that exception she had never suffered from any disease of the skin.There was no history of syphilis.Up to the age of fifteen she possessed " good long hair " down to her shoulders ; about that time she began to shed the hair.The catamenia set in between fifteen and sixteen years of age after the hair had begun to fall.The head became scurfy.At times the skin was itchy, and became tender.Shortly after the hair commenced to fall she had scarlatina.The thinning of the hair was worse afterwards than before the fever.Over the whole scalp the hair was uniformly thinned, although nowhere was there complete baldness.The longest hairs measured about five inches; they could be readily extracted without pain, and their free extremities appeared sharply broken off.Many of the hair-follicles projected so as to form pale or pink elevations, most numerous about the nape of the neck.The hair was very dry, of an uniform dark colour, and felt crisp to the touch.On close inspection, it was observed that many of the hairs were bent abruptly at a right angle, and that the length of the hairs was very unequal.The hairs, especially the shorter hairs, exhibited an appearance consisting of a regular beading, or succession of swellings, along the shaft, commencing immediately above the root.The nodes were fusiform, dark throughout, or pale in the lower segment and black in the upper ; whenever the hair was broken, as offen happened, the fracture always occurred at an internode.On an average one node went to each millimetre of length of hair.Each node would seem to represent about two days' growth.Scattered over the head were also many short, club-shaped stumps, representing single nodes implanted in the skin, and the root-ends likewise were pointed.On some of the longer hairs small bits were split off longitudinally about their middle.The eyebrows were thin, but no beaded hairs could be detected either among them or among the eyelashes.The axillary hairs were scanty, but appeared normal.The microscopical examination of the hairs was made by the late B. WiUs Richardson, and revealed the following condition :- Scarcely a trace of scale imbrication was seen on the nodes, but it was tolerably
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