The trichoscopic features of frontal fibrosing alopecia (FFA) have been described in the frontotemporal area, yet there is no data detailing the trichoscopic features of the sideburns, which can be the initial or exclusive area of involvement. In this retrospective cohort study, 236 trichoscopic images of the frontotemporal and sideburn area obtained via dry trichoscopy from patients with biopsy-proven FFA were examined by two independent researchers to determine the trichoscopic features of FFA in the sideburns. The images of the sideburns were compared to 44 trichoscopic images of 11 healthy volunteers with intact sideburns. Transparent proximal hair emergence surrounded by patches of paler smooth skin was the most prominent finding in the sideburns. Peripilar casts and peripilar erythema were rare in the sideburns compared to the frontotemporal area. Although less common, transparent proximal hair emergence was also seen in the sideburns of healthy controls, yet it was shorter and restricted to individual hairs. Early FFA presenting exclusively or mostly with sideburn involvement should not be missed due to absence of peripilar casts and peripilar erythema. Dermoscopy-guided biopsy obtained from hair shafts with transparent proximal hair emergence should be considered to make the diagnosis in this location.
This research output has an Altmetric Attention Score of 5. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 28 March 2018.
All research outputs
#6,199,523
of 23,031,582 outputs
Outputs from Skin Appendage Disorders
#50
of 206 outputs
Outputs of similar age
#98,363
of 317,472 outputs
Outputs of similar age from Skin Appendage Disorders
#3
of 12 outputs
Altmetric has tracked 23,031,582 research outputs across all sources so far. This one has received more attention than most of these and is in the 73rd percentile.
So far Altmetric has tracked 206 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 9.6. This one has done well, scoring higher than 75% of its peers.
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We're also able to compare this research output to 12 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 75% of its contemporaries.
