Leg Hair Growing Again After Thyroud Issues
Int J Trichology. 2014 Apr-Jun; vi(2): 75–76.
Anterolateral Leg Alopecia: Common simply Commonly Ignored
Tee Wei Siah
Section of Dermatology, Imperial Victoria Infirmary, Newcastle upon Tyne, NE1 4LP, United Kingdom
Matthew J Harries
iSalford Royal NHS Foundation Trust, Stott Ln, Salford M6 8HD, United Kingdom
Abstract
A middle-anile man presented with anterolateral leg alopecia which is a very common but under-recognized hair loss status.
Keywords: Alopecia, hair loss, nonscarring baldness
INTRODUCTION
Anterolateral leg alopecia is very common in centre-aged and elderly men but may likewise occur in women. A previous report estimates the prevalence of anterolateral leg alopecia among males as high as 35%.[1] It ofttimes presents as symmetrical, sharply demarcated hair loss confined to the anterior and lateral aspects of both legs. This blueprint of hair loss is extremely common yet inappreciably described in the medical literature.[1,2] Anterolateral leg baldness is frequently referred to every bit peroneal alopecia as the hair loss occurs in the distribution of the superficial branch of the peroneal nerve.
Case REPORT
A 46-yr-one-time man presented with a 2-year history of reducing hair density affecting the lower legs. There was no history of trauma preceding the onset of hair loss. He has male pattern hair loss and was taking tetracycline as required for rosacea. He was otherwise well with no known allergies. On further questioning, he reported no other body hair loss, rashes or associated symptoms. At that place was no loss of libido, or erectile dysfunction to propose androgen deficiency. He has no family history of pilus loss or autoimmune disease. The patient had been treated with topical antifungals and topical steroids prior to referral with no improvement.
Physical examination revealed nonscarring hair loss confined to the anterolateral surface area of lower legs bilaterally [Figure 1]. In that location were no signs of active inflammation. Dermoscopic examination showed no broken or exclamation mark hairs. His feet were warm with good peripheral pulses. He has classic Norwood-Hamilton Grade IV male pattern hair loss.
Nonscarring hair loss bars to the anterolateral area of lower legs bilaterally
Based on the history and clinical findings, the patient was diagnosed with anterolateral leg baldness. He was reassured about the beneficial nature of this condition with no further handling was given. Diagnostic pare biopsy was declined.
DISCUSSION
Anterolateral leg alopecia was showtime described in the 1920s[3] all the same the crusade of this hair loss pattern remains to be elucidated. Leg crossing, trouser rubbing and friction have all been suggested as contributing to this condition though a causal relationship has yet to exist confirmed by any studies. Robertson suggested an association betwixt anterolateral leg baldness and male person pattern hair loss.[4] However, Hamilton afterwards demonstrated no statistically significance association between the 2 weather.[5] Peripheral vascular illness and thyroid dysfunction are also cited as potential causative factors.[2]
The histopathology features of anterolateral leg alopecia were outset described by Gupta and Shaw[2] who showed that specimens lacked hair follicles, but were otherwise unremarkable. The course of this condition has been described as beneficial and progression appears rare. Spontaneous resolution may occur,[2] but no handling has been shown to exist constructive in stimulating pilus regrowth. Patient instruction and reassurance are usually adequate.
The main differential diagnosis of anterolateral leg alopecia is alopecia areata, which typically affects other body areas and displays characteristic dermoscopic and histopathology findings.
Determination
We report a patient with anterolateral leg alopecia. This distinctive design of hair loss is confined to the lower legs and predominantly occurs in male patients. This example highlights a common, benign but under-recognized hair loss condition with surprisingly scanty bachelor information on cause, pathogenesis, course and treatment.
Footnotes
Source of Back up: Nil
Disharmonize of Interest: None declared.
REFERENCES
1. Ronchese F, Chase RR. Patterned baldness about the calves and its apparent lack of significance. Curvation Dermatol Syphilol. 1939;40:416–21. [Google Scholar]
ii. Gupta SN, Shaw JC. Anterolateral leg alopecia revisited. Cutis. 2002;70:215–vi. [PubMed] [Google Scholar]
3. Kidd Cited past Danfort CH. Studies on hair, with special reference to hypertrichosis, Iv: Regional characteristics of human hair. Arch Dermatol Syphilol. 1925;12:76. [Google Scholar]
4. Robertson PC. A description and study of an area of atrophic peel occurring in men, with its relationship to the common type of diffuse baldness of the scalp. Br J Dermatol Syphilol. 1938;fifty:581. [Google Scholar]
v. Hamilton JB. Patterned loss of hair in homo; types and incidence. Ann N Y Acad Sci. 1951;53:708–28. [PubMed] [Google Scholar]
Articles from International Periodical of Trichology are provided here courtesy of Wolters Kluwer -- Medknow Publications
Source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4154156/
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