hairpin vessels

hairpin vessels

atypical blood vessels that double back on themselves, seen on colposcopy of the cervix; their presence indicates early invasive cervical cancer.
Synonym(s): corkscrew vessels

hair·pin ves·sels

(hār'pin ves'ĕlz)
Atypical blood vessels that double back on themselves, seen on colposcopy of the cervix; their presence indicates early invasive cervical cancer.
Synonym(s): corkscrew vessels.
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Dermoscopic Findings In SKs Fissures and ridges Thick, curved, occasionally branched lines whose colors vary from hypopigmented to brown, black, and blue Hairpin vessels Two parallel linear vessels forming a half-looped or hairpin-like structure, often surrounded by a white halo Milia-like cysts Many (>3) small (<1/3 mm) milia-like cysts throughout the lesion ("stars in the sky") Polymorphous Observed in irritated or traumatized SKs vascular pattern, ulceration, or crust Globule-like Observed in clonal type SK and structures regressing SK Dermoscopic Findings In Non-SK Lesions Fissures and ridges Can mimic the pigment network of melanocytic lesions, in which lines are typically thinner.
Dermoscopy can reveal blood vessels with unusual morphology: irregular hairpin vessels and corkscrew, torturous vessels.