There is a swelling in a diffuse area. It is characterized by edema that appears at birth, disappears in several days, and crosses suture lines. This is the?

1. A

   Hydrocephalus

2. B

   Cephalohematoma

3. C

   Reye's disease

4. D

   Caput succedaneum

Appeared in: UPRVUNL - 2021

Explanation

• Caput succedaneum is a benign, edematous swelling of the soft tissues of the scalp in a newborn.
• It is caused by prolonged pressure on the fetal head from the cervix or vaginal walls during labor and delivery.
• The most definitive clinical sign is that the swelling is diffuse and crosses the cranial suture lines because the fluid collection is superficial to the periosteum.
• The swelling is typically soft, may show pitting on pressure, and resolves spontaneously within a few days without treatment.

Why Other Options Were Wrong

• Option A: Hydrocephalus is an accumulation of cerebrospinal fluid within the brain's ventricles, causing increased intracranial pressure and enlargement of the entire head, not a localized, superficial scalp swelling.
• Option B: Cephalohematoma is a collection of blood beneath the periosteum of a cranial bone. A key feature is that it does not cross suture lines, as the periosteum is firmly attached at these points. The question states the swelling crosses suture lines.
• Option C: Reye's disease is a rare, acute encephalopathy and fatty infiltration of the liver that typically affects children recovering from a viral illness, often associated with aspirin use. It is completely unrelated to neonatal birth trauma or scalp conditions.

Related Visual

Clinical Relevance

• Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Differentiation of neonatal scalp swellings as background academic context rather than a clinical decision trigger.
• A nurse's primary role is to accurately assess the newborn's head, differentiate between caput succedaneum and cephalohematoma, and document the findings.
• For caput succedaneum, the main nursing intervention is to reassure the parents that the swelling is a common, temporary, and harmless condition that will resolve on its own.
• If a cephalohematoma is suspected, the nurse must monitor the infant for signs of jaundice (hyperbilirubinemia), as the breakdown of the collected blood can increase bilirubin levels.

How to Approach the Question

• First, identify the key clinical features presented in the question stem: a newborn with a scalp swelling.
• Break down the description of the swelling: it is diffuse, edematous, present at birth, resolves in days, and—most importantly—'crosses suture lines'.
• Recognize that 'crossing suture lines' is the critical differentiating factor for common neonatal scalp swellings.
• Evaluate the options based on this key feature. Recall the definitions of Caput Succedaneum (crosses sutures) and Cephalohematoma (does not cross sutures).
• Eliminate Hydrocephalus (generalized head enlargement) and Reye's disease (post-viral encephalopathy) as they do not match the localized scalp swelling description.
• Conclude that the description perfectly matches Caput Succedaneum.

Concept Tested & Keywords

• Concept Tested: Differentiation of neonatal scalp swellings
• Stem keywords: swelling, diffuse area, edema, at birth, disappears in several days, crosses suture lines
• Lead-in keywords: This is the?
• Clinical cues: The key diagnostic clue is that the swelling 'crosses suture lines', which is pathognomonic for Caput Succedaneum as the edema is superficial to the periosteum.

Question ID

QiFEm92_23zCX0QhcXU_Q

Copy ID

Reference Book

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 1065-1067

E6 Obstetrics Williams p. 18-34