Spontaneous subgaleal hematoma in a patient with sickle cell disease: A case report and literature review.

Sickle cell disease (SCD) is a common hemoglobin disorder with variable clinical manifestations. Spontaneous subgaleal hematoma is rare, with sporadic cases reported in patients with SCD. Most cases resolve with conservative measures. Skull bone infarction should be considered a possible cause of severe acute headache in patients with SCD.