Search Results for: trichotillomania

Histologic Diagnosis of Inflammatory Skin Diseases

Traction alopecia

…l and occipital regions with slowly progressive loss of hair. Trichotillomania also is produced artifactually, but by twisting hairs to and fro, the result being broken off hairs of different lengths. Findings histopathologic Early Perivascular and p…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Psychocutaneous Disorders?

…e is induced wholly by a person who is disturbed emotionally. Trichotillomania, twisting of hair shafts back and forth until they break, in most instances is nothing other than a relatively innocent habit obsessive-compulsive, one that surely is driv…

Differential Diagnosis in Dermatopathology

Discussions

Alopecia areata and trichotillomania have several attributes histopathologic in common, namely, some follicles in catagen and often in telogen, long fibrous tracks behind shortened follicles and, in sections from some specimens, and hardly any periv…

Differential Diagnosis in Dermatopathology

Discussions

…among the alopecias. The criteria for distinguishing between trichotillomania and traction alopecia listed at the outset of this chapter are examples of how a particular problem in differential diagnosis of alopecias can be resolved. Trichotillomani…

Histologic Diagnosis of Inflammatory Skin Diseases

Alopecia areata, totalis, universalis

…s redness, scaliness, and, occasionally, pustules and crusts. Trichotillomania is characterized by ill-defined zones typified by a “rat-eaten” appearance and shortened hairs that differ considerably in length. Alopecia mucinosa, a manifes…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…o wit, trichomalacia, the most common sign histopathologic of trichotillomania. Traction alopecia is an inflammatory disease; it exhibits lichenoid peri-infundibulitis and perifolliculitis “early” in its course; trichotillomania, by contr…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…lution are a clue to diagnosis of alopecia areata and also to trichotillomania when hairs have been plucked as well as twisted, the latter being manifested morphologically by signs of trichomalacia. 10.3.6A: A biopsy specimen from a scalp + 10.3.6B:…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Anagen Effluvium?

…t of unrelated completely, among those being alopecia areata, trichotillomania, alopecia mucinosa (a manifestation morphologic of mycosis fungoides), and infectious processes such as dermatophytosis, to name but a few of them. Despite the illogic of…