▁( ult ras ound ▁with ▁Do pp ler , ▁magnetic ▁reson ance ▁imag ing ), ▁and / or ▁c yt ology ▁or ▁hist op ath ology ▁are ▁needed ▁to ▁confirm ▁the ▁diagn osis . ▁I H s ▁are ▁usually ▁absent ▁at ▁birth ▁or ▁a ▁small ▁area ▁of ▁p all or , ▁tel ang ie ct as ias , ▁or ▁d usk iness ▁may ▁be ▁seen . ▁A ▁fully ▁formed ▁mass ▁at ▁birth ▁usually ▁indicates ▁a ▁diagn osis ▁other ▁than ▁I H . ▁Super f icial ▁hem ang iom as ▁in ▁the ▁upper ▁der mis ▁have ▁a ▁bright - red ▁st raw berry ▁color , ▁whereas ▁those ▁in ▁the ▁deep ▁der mis ▁and ▁sub cut is , ▁deep ▁hem ang iom as , ▁may ▁appear ▁blue ▁and ▁be ▁firm ▁or ▁rub ber y ▁on ▁pal p ation . ▁M ixed ▁hem ang iom as ▁can ▁have ▁both ▁features . ▁ ▁A ▁minim ally ▁pro l ifer ative ▁I H ▁is ▁an ▁un common ▁type ▁that ▁presents ▁with ▁fine ▁mac ular ▁tel ang ie ct as ias ▁with ▁an ▁occas ional ▁bright - red , ▁pap ular , ▁pro l ifer ative ▁component . ▁ ▁Min im ally ▁pro l ifer ative ▁I H s ▁are ▁more ▁common ▁in ▁the ▁lower ▁body . ▁ ▁A ▁precise ▁history ▁of ▁the ▁growth ▁characteristics ▁of ▁the ▁I H ▁can ▁be ▁very ▁helpful ▁in ▁making ▁the ▁diagn osis . ▁In ▁the ▁first ▁ 4 ▁to ▁ 8 ▁weeks ▁of ▁life , ▁I H s ▁grow ▁rapidly ▁with ▁primarily ▁vol