منابع مشابه
Circular hairs: nomenclature and meanings*
Trichoscopy has become an essential tool for the diagnosis of various diseases that affect the hair and scalp. Through dermatoscopy we identified a set of findings that share a circular shape of hair shafts. The objective of this study is to distinguish among the various forms of circular hairs in order to identify their peculiarities and to describe in which skin disorders they can be found.
متن کاملRoot hairs.
Roots hairs are cylindrical extensions of root epidermal cells that are important for acquisition of nutrients, microbe interactions, and plant anchorage. The molecular mechanisms involved in the specification, differentiation, and physiology of root hairs in Arabidopsis are reviewed here. Root hair specification in Arabidopsis is determined by position-dependent signaling and molecular feedbac...
متن کاملSplitting hairs ∗
Besides conjoining an assertion into the common ground (Stalnaker 1978), another kind of move that we often propose and accept in discourse is to change our notion of what is a thing and what is the same thing. For example, depending on how a conversation goes, in the middle of it we might start treating ‘a’ and ‘A’ as different letters, while preserving our common knowledge that it is a vowel....
متن کاملNew trichoscopy findings in trichotillomania: flame hairs, V-sign, hook hairs, hair powder, tulip hairs.
Differential diagnosis of trichotillomania is often difficult in clinical practice. Trichoscopy (hair and scalp dermoscopy) effectively supports differential diagnosis of various hair and scalp diseases. The aim of this study was to assess the usefulness of trichoscopy in diagnosing trichotillomania. The study included 370 patients (44 with trichotillomania, 314 with alopecia areata and 12 with...
متن کاملPain, purpura and curly hairs.
A 43-year-old man was referred to dermatology after presenting to the accident and emergency department with leg pain, swelling and rash. The purpuric rash had developed over the preceding 4 weeks. He had no history of trauma or recent illness, and was otherwise well at presentation. He had a history of schizoaffective disorder that was being treated with olanzapine, and he lived alone in shelt...
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ژورنال
عنوان ژورنال: Anais Brasileiros de Dermatologia
سال: 2017
ISSN: 1806-4841,0365-0596
DOI: 10.1590/abd1806-4841.20176487