A gradual transition between capillary calibers

Wider hairpin capillaries on the left and finer loops on the right.

Wider hairpin capillaries on the left and finer loops on the right.
Wider hairpin capillaries on the left and finer loops on the right.

Image details

Pattern
Unequal capillary calibers
Author or contributor
Borja Gracia Tello
Hallmarks
Unequal capillary calibersSimple hairpin loops
Magnification
250×
Device
Smart G-Scope
Field of view (W × H)
≈ 2.27 × 1.28 mm
Open full-size image

Teaching point

Precise measurement depends on correct calibration and focus.

Measurements and calibration

For the subset of apices with stable automated measurements, estimated widths span approximately 13–33 µm. These are automated estimates, not manually validated measurements.

Clinical caveat

This image illustrates a visual finding and should be interpreted with acquisition quality, distribution across fingers, clinical context, and serology when relevant.

Use and licensing

Educational material. For reuse outside Capillaroscopy.com, request permission and preserve the stated attribution.

Related images

Back to atlas
Hairpin capillaries with rounded apices of different widths. The deeper vascular network is visible.A capillary row above the deeper vascular networkElongated hairpin capillaries, with wider apices at the sides and finer loops in the center.Rounded loops along a descending borderLong hairpin capillaries with parallel limbs. The loop on the left is wider than the others.Long hairpins with uneven apical widthsSlender capillaries with rounded apices and mildly tortuous limbs, especially right of center.Straight apices above winding limbs