A bulbous tip beside a crossed loop
An enlarged rounded apex on the left and an oval crossed loop near the center, among narrower hairpin capillaries.

Image details
- Recorded diagnosis
- Antiphospholipid syndrome
- Pattern
- Capillary dilation
- Author or contributor
- Borja Gracia Tello
- Hallmarks
- Capillary dilationTortuous capillaries
- Magnification
- 250×
- Device
- Smart G-Scope
- Field of view (W × H)
- ≈ 2.32 × 1.31 mm
Teaching point
Giant capillaries: loops with apical diameter ≥ 50 μm. Precise measurement depends on correct calibration and focus.
Measurements and calibration
For the subset of apices with stable automated measurements, estimated widths span approximately 20–48 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
Third-party image. Refer to the credits and any image-specific terms of use.
- Creator
- Borja Gracia Tello
Suggested attribution
A bulbous tip beside a crossed loop — Borja Gracia Tello, via Capillaroscopy.com. CC BY 4.0. Source: https://capillaroscopy.com/en/library/gracia-tello-tortuous-022/ Licence: https://creativecommons.org/licenses/by/4.0/
If you modify the image, describe your changes and retain any existing modification notices. This licence does not imply endorsement or clear other rights.
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