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      Chronic telogen effluvium: Increased scalp hair shedding in middle-aged women

      Journal of the American Academy of Dermatology
      Elsevier BV

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          Diffuse loss of scalp hair is a common problem in middle-aged women. A segment of these cases represents idiopathic chronic telogen effluvium (CTE). The purpose was to establish distinctive clinical and pathologic criteria for the diagnosis of CTE to facilitate its differentiation from androgenetic alopecia (AGA) and systemic causes of chronic diffuse hair loss. A group of 355 patients (346 females, 9 males) with diffuse generalized thinning of scalp hair of unknown origin were classified as having CTE and were included in the study. Characteristically they presented with a history of hair loss with both increased shedding and thinning of abrupt onset and fluctuating course and showed diffuse thinning of hair all over the scalp, frequently accompanied by bitemporal recession. Two 4 mm punch biopsy specimens were taken mostly from the mid or posterior parietal scalp of these patients. The biopsies were performed at these same areas in 412 patients with AGA (193 male, 219 female). Similar paired biopsy specimens were also taken from 22 normal control subjects (13 males, nine females). Specimens were sectioned horizontally and vertically and were examined for terminal and velluslike (miniaturized) hairs, follicular stelae, follicular units, and perifollicular inflammation and fibrosis. In horizontal sections of 4 mm punch biopsy specimens from patients with CTE the average number of hairs was 39, the terminal/velluslike hair ratio was 9:1, 89% of the terminal hairs were in anagen, and 11% were in telogen. In AGA these values were 35, 1.9:1, 83.2%, and 16.8%, respectively, and in normal control subjects 40, 7:1, 93.5%, and 6.5%, respectively. Significant degrees of inflammation and fibrosis were present in only 10% to 12% of cases of CTE and normal controls, but occurred in 37% of cases of AGA. CTE ran a prolonged and fluctuating course in many patients. CTE, which usually affects 30- to 60-year-old women, starts abruptly with or without a recognizable initiating factor. It may be distinguished from classic acute telogen effluvium by its long fluctuating course and from AGA by its clinical and histologic findings.

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          Journal of the American Academy of Dermatology
          Journal of the American Academy of Dermatology
          Elsevier BV
          December 1996
          December 1996
          : 35
          : 6
          : 899-906
          © 1996




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