perifollicular


Also found in: Medical.

perifollicular

[¦per·ə·fə′lik·yə·lər]
(histology)
Surrounding a follicle.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Trichodiscomas are benign hamartomas of the mesenchymally derived perifollicular fibrous root sheath.
Dermoscopy revealed a combination of linear vascular reddish structure and perifollicular white halos measuring 0.5 to 1.2 mm (Fig.
However, perivascular and perifollicular infiltrates can be seen after a few weeks, and a similar amount of shortening and shrinkage in collagen fibers is shown in electron microscopic evaluation.
Therefore several studies have used the information obtained by use of power Doppler for assessing perifollicular blood flow to determine the quality of the oocyte and to predict the potential success of ART cycles (5,6)
Follicular fluid VEGF levels directly correlate with perifollicular blood flow in normoresponder patients undergoing IVF.
The evaluated parameters included perifollicular changes, vascularity, white dots, keratin plugs, number of follicular ostia.
His physical examination was remarkable for swollen and bleeding gum, follicular hyperkeratosis with perifollicular purpura at the lower extremities, and soft tissue swelling of both knees, which were painful during passive motion with bilateral 30[degrees] flexion contracture of the knees (Figure 1a and b).
Becker melanosis is associated with homogenous brown patches with perifollicular hypopigmentation, sometimes with a faint reticular pattern.
Perifollicular parakeratosis and follicular horn plug are indicative of pityriasis rubra pilaris.
We describe a case of scurvy presenting with anemia, perifollicular hemorrhages, and extensive ecchymoses and highlight the importance of recognizing vitamin C deficiency as a cause of bleeding diathesis.
Skin biopsy is generally unnecessary, as the histopathologic findings are nonspecific: perivascular and perifollicular inflammatory infiltrates in papulopustular rosacea, dilated blood vessels in the erythematotelangiectatic rosacea, and sebaceous gland hyperplasia and dermal fibrosis in phymatous rosacea.
Lichen scrofulosorum is an eruption of multiple, small, grouped, asymptomatic, firm, perifollicular, lichenoid papules or plaques often affecting children and adults with underlying diseases of bone and lymph nodes [16, 26].