A rare dermatoglyphic finger pattern in a Canadian kindred

Area of Science:

• Dermatoglyphics
• Human genetics
• Forensic science

Background:

• Fingerprint classification traditionally relies on arch, loop, and whorl patterns.
• Rare dermatoglyphic configurations are infrequently studied or reported.
• Understanding variations in fingerprint patterns can have implications for identification and genetic research.

Purpose of the Study:

• To present a rare case of a specific fingerprint pattern observed in a Canadian family.
• To encourage broader investigation into dermatoglyphic pattern variations.
• To highlight the potential for patterns beyond conventional classifications.

Main Methods:

• Case study involving a three-generation Canadian pedigree.
• Detailed dermatoglyphic analysis of fingerprint patterns, specifically on the second digit of the left hand.
• Pedigree analysis to track the inheritance of the observed pattern.

Main Results:

• A rare radial loop plus radial loop pattern was identified on the second digit of the left hand in a woman.
• The same rare pattern was observed in her son on the same digit.
• The pattern's presence across generations suggests a potential heritable component.

Conclusions:

• The presented pedigree demonstrates the occurrence of a rare, specific fingerprint pattern (radial loop plus radial loop) in a familial context.
• This case underscores the importance of considering dermatoglyphic variations outside the standard arch, loop, and whorl categories.
• Further research into rare fingerprint patterns may reveal new insights into human genetics and identification methods.