What is the Difference Between Subgaleal Hematoma and Cephalohematoma?

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A subgaleal hematoma and a cephalohematoma are both blood collections in the infant's skull, but they have different characteristics and locations:

Subgaleal Hematoma:

  • Blood collects between the galea aponeurosis tissue and the periosteum.
  • The hematoma can extend more widely and cross the suture lines of the skull.
  • It may involve a diffuse, boggy swelling over the scalp, not limited by the suture lines.
  • It can move down into the neck region, unlike a cephalohematoma.
  • Subgaleal hematomas can be more serious and may require surgery, or the infant can be observed to see if the condition resolves.

Cephalohematoma:

  • Blood is found underneath the skull because of periosteum blood vessels rupturing.
  • The hematoma is usually bound by the margins of the bone and does not cross the suture lines.
  • It typically involves a localized firm mass that may increase in size following birth.
  • Cephalohematomas are generally not as serious as subgaleal hematomas and may not require treatment, but infants should be observed for any changes.

In summary, the main difference between a subgaleal hematoma and a cephalohematoma is the location of the blood collection within the infant's skull and the extent to which it crosses the suture lines. Subgaleal hematomas are generally more extensive and may involve the neck region, while cephalohematomas are more localized and usually do not cross the suture lines.

Comparative Table: Subgaleal Hematoma vs Cephalohematoma

Here is a table comparing the differences between subgaleal hematoma and cephalohematoma:

Feature Subgaleal Hematoma Cephalohematoma
Definition A collection of blood between the galea aponeurosis tissue and the periosteum of the skull. A collection of blood underneath the scalp, specifically in the sub-periosteal space.
Location Between the galea aponeurosis and the periosteum. Between the skull and its periosteum.
Extension Can extend into the neck region. Does not extend into the neck region.
Symptoms Bulge on the head, skin changes color, and looks bruised. Bulge on the head, no color change or bruise.
Complications Neonatal encephalopathy. Anemia, jaundice.
Treatment Sometimes surgery, otherwise observation. No treatment, observation.

Both subgaleal hematoma and cephalohematoma are conditions that occur in the skull, predominantly affecting infants. They may cause complications and can be diagnosed through physical examination and imaging scans. Treatment options may include blood transfusion, giving saline, draining accumulated blood, and surgery for subgaleal hematoma, while cephalohematoma typically does not require treatment.