<unk>  is a neonatal condition involving a serosanguinous, subcutaneous, extraperiosteal fluid collection with poorly defined margins caused by the pressure of the presenting part of the scalp against the dilating cervix [tourniquet effect of the cervix] during delivery.
Caput succedaneum
Dens evaginatus
Veratrum
Duplessis Orphans
Cutaneos Horn
Cystica profunda
Cutis rhomboidalis nuchae
Commotio cordis