By Leonard C Sperling
Diagnosing and treating hair problems continues to be a topic that's infrequently or in simple terms superficially coated in residency education. for that reason, dermatopathologists and scientific dermatologists frequently discover a hole of their wisdom. a brand new variation of an acclaimed textual content, An Atlas of Hair Pathology with scientific Correlations, moment Edition bridges this hole and serves as a primer, an atlas, and a reference.
- Supplies simple info on anatomy
- Examines medical good points that supply a scientific / pathological correlation
- Details the sensible tactics of comparing specimens
- Includes new photos demonstrating easy and complex histologic positive factors of hair disease
- Explores a number of new diagnoses
Disorders during this version contain senescent balding, free anagen hair syndrome, psoriatic alopecia, and psoriatic alopecia, and chemotherapy-induced alopecia. The publication additionally incorporates a word list of phrases regarding hair pathology.
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Additional info for An atlas of hair pathology with clinical correlations
As would be expected, the number of terminal hairs per follicular unit may be smaller in patients of African descent than in Caucasians. The average density of follicular units is about one per square millimeter of surface area. 6 mm²) will contain about 12 follicular units. 22 AN ATLAS OF HAIR PATHOLOGY WITH CLINICAL CORRELATIONS In the normal scalp, the terminal:vellus (T:V) hair ratio should be at least 2:1 or greater. 7:1 in 106 patients with common balding (6). Sperling reported a ratio of 6:1 in a group of 32 normal subjects (7).
A simplified approach to the diagnosis of alopecia. Dermatol Clin. 1996; 14: 691–5. 2. Sperling L. Evaluation of hair loss. Curr Probl Dermatol 1996; 8: 97–136. 3. Sperling LC. Hair and systemic disease. Dermatol Clin 2001; 19: 711–26, ix. 14 Brocq’s alopecia pattern: irregularly or geometrically shaped, variably atrophic and hypopigmented, clustered, and well-demarcated plaques of hairless skin. 8 Senescent alopecia (“senile alopecia” or “senescent balding”) The diagnostic criteria for senescent balding, as enumerated by Kligman, are “(i) no family history of male pattern balding and (ii) decreased hair density that does not become apparent until after about age 50 years” (1).
19 In this cartoon of a transversely sectioned follicular unit, the three largest hair shafts can be labeled as terminal hairs (T). A medium-sized hair, less than half of the average diameter of the largest shafts, is labeled as an indeterminate hair (i). The remaining hair shaft, less than one-third the diameter of the largest hairs, is labeled as vellus. 21 An indeterminate or medium-sized hair (lower left) and two terminal hairs. 24 AN ATLAS OF HAIR PATHOLOGY WITH CLINICAL CORRELATIONS hairs, and peribulbar inflammation, to name a few.