Blood vessels
From dermoscopedia
| Comma vessels | Dotted vessels | Hairpin vessels | Elongated hairpin vessels | Straight linear vessels | Thin arborizing vessels | Thick arborizing vessels | Capillary blood extravasations | Concentric perifollicular vessels | Milky red globules | Linear helical vessels | Lace-like vessels | Glomerular vessels | Serpentine vessels | Thick root-like vessels | Vessel nets |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C-shaped or slightly curved vessels | Tiny, red dots densely aligned next to each other | Small, linear looped vessels | Elongated, linear looped vessels | Straight linear vessels | Thinner than the average terminal hair arborizing vessels | Thicker than the average terminal hair arborizing vessels | Round or oval, sharply demarcated, intensely red areas | Vessels (loops or linear) arranged concentrically around a follicular unit | Globules or larger areas of a fuzzy or unfocused milky red color | Linear vessels twisted along a central axis | Combination of serpentine and looped vessels | Coiled or twisted vessels | Bending, scarcely branching vessels | Thick, irregularly banded, linear vessels | Interfollicular network of blood vessels |
| Inflammatory scalp diseases (seborrheic dermatitis, psoriasis), healthy persons | Healthy persons in the frontal area, eczema | Healthy persons in the frontal area | Cicatricial alopecia (lichen planopilaris, folliculitis decalvans), T-cell lymphoma | Pemphigus vulgaris | Healthy persons (the occipital and temporal area), seborrheic dermatitis | Discoid lupus erythematosus, basal cell carcinoma | Active psoriasis | Cicatricial alopecia (lichen planopilaris, folliculitis decalvans) | T-cell lymphoma, psoriasis | Psoriasis, pemphigus, T-cell lymphoma | Psoriasis | Psoriasis | Discoid lupus erythematosus | Discoid lupus erythematosus, congenital capillary malformations | Healthy persons, after topical corticosteroids |
