The feathered skin around the vent contained moderate perifollicular
A wide variety of follicle sizes have been identified, and most of them contain small hyalinised blood vessels that penetrate the germinal centres in an outward concentric fashion from the perifollicular
area, giving it the characteristic appearance shown in Fig.
Histologic findings of HS depend on lesion age but may include follicular hyperkeratosis and plugging, follicular dilation and rupture, perifollicular
lymphocytic or mixed inflammatory infiltrate.
Hair growth needs perifollicular
vascularization, during which VEGF is upregulated in the outer root sheath (Yano et al.
Lupus erythematosus is the prototypic interface dermatitis associated with a perivascular and perifollicular
lymphocytic infiltrate, increased dermal mucin, and follicular plugging (Figure 2).
folliculorum may also serve as a vector for Staphylococcus aureus, and has been associated with a perifollicular
RS, a comprehensive minoxidil-free treatment with ingredients to counter stress, perifollicular
fibrosis, hormonal disturbances, and vitamin and mineral deficiencies.
The giant comedones seen over the upper back and occasionally on the face are also associated with photodamage, and I suspect that they are passively allowed to dilate with the keratinous debris because of the loss off perifollicular
dermal support--exactly analogous to the situation with the microvasculature.
A high concentration of Merkel cells in the bulge prior to the attachment of the arrector pili muscle and the formation of the perifollicular
nerve plexus in human fetal skin.
Deficiency of vitamin A causes night blindness, xerophthalmia, keratomalacia, perifollicular
hyperkeratosis of the skin, and increased susceptibility to infection (15).
Androgenetic alopecia (AGA) is a dihydrotestosterone (DHT) mediated process, characterised by continuous miniaturisation of androgen reactive hair follicles and accompanied by perifollicular
fibrosis of follicular units in histological examination (Yoo 2006).
In this context, the absence of structural perifollicular
tissues in S.