Stabler's sign revisited in a spontaneously ruptured neuroblastoma of the newborn.

Retroperitoneal hemorrhage is known to cause bruising of flanks (Turner's sign), umbilicus (Cullen's sign), pubis and groin (Stabler's sign), upper thigh (Fox's sign), or scrotum (Bryant's sign). Spontaneous adrenal hemorrhage is the most common cause of nontraumatic parietal ecchymosis sign in neonates. Only 20 such neonatal cases have been reported in the literature.