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Cephalohematoma should be distinguished from another scalp bleeding called subgaleal hemorrhage (also called subaponeurotic hemorrhage), which is blood between the scalp and skull bone (above the periosteum) and is more extensive. It is more prone to complications, especially anemia and bruising.
The swelling may obscure the fontanel and cross cranial suture lines, distinguishing it from cephalohematoma, [2] in which the bleed is confined by its subperiosteal location. [3] Patients with subgaleal hemorrhage may also have significant hyperbilirubinemia due to resorption of hemolyzed blood. Laboratory studies may demonstrate reduced ...
Subgaleal hematoma – between the galea aponeurosis and periosteum; Cephalohematoma – between the periosteum and skull. Commonly caused by vacuum delivery and vertex delivery. Epidural hematoma – between the skull and dura mater; Subdural hematoma – between the dura mater and arachnoid mater
Subgaleal haemorrhage is defined as bleeding between the epicranial aponeurosis and the skull. [2] Conservative management is usually appropriate for these, as there is little risk of further damage to surrounding structures.
A subgaleal hemorrhage may initially look like a caput succedaneum or a chignon because blood crosses the suture lines for all three conditions. [6] However, notifiable signs of a subgaleal hemorrhage include fluctuant scalp swelling, a lesion crossing the suture lines, pitting edema continuing over the head, and fluid wave test .
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