A complex returning loop between slender neighbors
A folded central capillary with a possible accessory loop, between two taller slender hairpins.

Image details
- Pattern
- Abnormal shapes and ramifications
- Author or contributor
- Borja Gracia Tello
- Hallmarks
- Abnormal shapes and ramificationsTortuous capillaries
Teaching point
If a loop cannot be classified safely, it is better to declare it doubtful or non-evaluable.
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 complex returning loop between slender neighbors — Borja Gracia Tello, via Capillaroscopy.com. CC BY 4.0. Source: https://capillaroscopy.com/en/library/gracia-tello-tortuous-043/ 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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