iom as , ▁the ▁most ▁common ▁being ▁a ▁li ver ▁( he p atic ) ▁hem ang i oma , ▁and ▁these ▁inf ants ▁war rant ▁ul tras ound ▁exam ination . ▁ ▁Deep ▁I H s ▁present ▁as ▁poor ly ▁defined , ▁bl u ish ▁mac ules ▁that ▁can ▁pro l ifer ate ▁into ▁pap ules , ▁nod ules , ▁or ▁larger ▁tum ors . ▁Pro l ifer ating ▁les ions ▁are ▁often ▁compress ible , ▁but ▁fairly ▁firm . ▁Many ▁deep ▁hem ang iom as ▁may ▁have ▁a ▁few ▁super f icial ▁cap ill aries ▁visible ▁evident ▁over ▁the ▁primary ▁deep ▁component ▁or ▁surrounding ▁ven ous ▁prom in ence . ▁Deep ▁hem ang iom as ▁have ▁a ▁t endency ▁to ▁develop ▁a ▁little ▁later ▁than ▁super f icial ▁hem ang iom as , ▁and ▁may ▁have ▁longer ▁and ▁later ▁pro l ifer ative ▁phases , ▁as ▁well . ▁Deep ▁hem ang iom as ▁rarely ▁ul cer ate , ▁but ▁can ▁cause ▁issues ▁depending ▁on ▁their ▁location , ▁size , ▁and ▁growth . ▁ ▁Deep ▁hem ang iom as ▁near ▁sensitive ▁structures ▁can ▁cause ▁compression ▁of ▁so fter ▁surrounding ▁structures ▁during ▁the ▁pro l ifer ative ▁phase , ▁such ▁as ▁the ▁external ▁ear ▁canal ▁and ▁the ▁e y el id . ▁M ixed ▁hem ang iom as ▁are ▁simply ▁a ▁combination ▁of ▁super f icial ▁and ▁deep ▁hem ang iom as , ▁and ▁may ▁not ▁be ▁evident ▁for ▁several ▁months . ▁Pat ients ▁may ▁have ▁any ▁combination ▁of ▁super f icial ,