Alopecia areata may mimic the ophiasis
(band-like) pattern of hair loss seen with FFA, but it is a non-scarring disorder that typically lacks any signs of inflammation.
Clinical patterns of alopecia areata include patchy, confluent, diffuse, ophiasis
, alopecia totalis and alopecia universalis.
Type of AA: In the present study most common type of AA is patchy type 73%, followed by ophiasis
in 7%, sisaphio in 7%, totalise in 4%, universalise in 3%, reticulate in 3%, diffuse in 3% of cases which were comparable to Thomas et al.
One form of alopecia is the ophiasis
pattern in which there is a long band passing above the ear, occurring in 5% of child hood cases.
Another form of alopecia is the ophiasis
pattern in which there is a long band passing above the ear, occurring in 5% of childhood cases.
Majority (89%) of the patients had patchy type of AA, 6% had reticulate pattern and 4% had ophiasis
80 patients presented with localized disease and 2 each with diffuse and ophiasis
The clinical response of 2 (4%) patients with ophiasis
pattern was good.
According to the pattern the following forms are seen: patchy AA, round or oval patches of hair loss (most common); reticular AA, reticulated pattern of hair loss; ophiasic band like AA, hair loss in parieto- temporo-occipital scalp; ophiasis
inversus, a rare band like pattern of hair loss in fronto-parieto-temporal scalp; and diffuse Alopecia Areata, a diffuse decrease in hair density.
Long lasting cases (more than 2 years), starting in childhood, alopecia universalis, alopecia totalis, ophiasis
, atopy and nail involvement show poor response.
The pattern of hair loss observed in AA can vary considerably, and less common presentations can be observed in minority of the cases, including reticular patches of hair loss; ophiasis
type, band-like hair loss in parieto-temporp-occipital area; ophiasisinversus (sisaphio), very rare band-like hair loss in the fronto-parieto-temporal area; and diffuse thinning over part or the entire scalp.
pattern refers to a severe form of AA extending along the posterior occipital and temporal scalp margins.