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Caput succedaneum

Definition:

Caput succedaneum is a diffuse swelling of the scalp in a newborn caused by pressure from the uterus or vaginal wall during a head-first (vertex) delivery.

Alternative Names:

Caput

Causes, incidence, and risk factors:

A caput succedaneum is caused by the mechanical trauma of the initial portion of scalp pushing through a narrowed cervix . The swelling may be on any portion of the scalp, may cross the midline (as opposed to a cephalhematoma), and may be discolored because of slight bleeding in the area. There may also be molding of the head, which is common in association with a caput succedaneum.

References:

Stoll, BJ, Kliegman, RM. Nervous System Disorders. In: Behrman, RE., Kliegman, RM, Jenson, HB, eds. Nelson Textbook of Pediatrics . 17th ed., Philadelphia, PA: Saunders; 2004:562

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