# A 3-year-old child is brought to the pediatric clinic by parents who report chronic diarrhea, abdominal distention, and failure to thrive despite adequate caloric intake. The nurse is conducting an initial assessment. Which finding would be most indicative of celiac disease?

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> subject: Child Health

## 문제

A 3-year-old child is brought to the pediatric clinic by parents who report chronic diarrhea, abdominal distention, and failure to thrive despite adequate caloric intake. The nurse is conducting an initial assessment. Which finding would be most indicative of celiac disease?

## 보기

1. Projectile vomiting after meals with visible peristalsis
2. Bulky, foul-smelling, fatty stools with poor weight gain **✔ 정답**
3. Bloody diarrhea with mucus and fever
4. Constipation alternating with watery diarrhea

**정답: 2**

## 해설

Celiac disease causes malabsorption due to gluten-induced villous damage, leading to steatorrhea (bulky, foul-smelling, fatty stools) and failure to thrive despite adequate intake. Other options are not typical for celiac disease.

## 심화 해설

Correct Answer: 2. Bulky, foul-smelling, fatty stools with poor weight gain

This finding is the hallmark of the classic gastrointestinal presentation of celiac disease in a young child. Celiac disease is an immune-mediated enteropathy triggered by the ingestion of gluten—a protein found in wheat, rye, and barley—in genetically predisposed individuals [1]. When a child with celiac disease consumes gluten, the immune system mounts an inflammatory response that damages the villi lining the small intestine. These villi are responsible for absorbing nutrients; when they become blunted or atrophied, the absorptive surface area is drastically reduced, leading to malabsorption syndrome.

The specific description of steatorrhea—stools that are bulky, pale, foul-smelling, and fatty—is a direct consequence of this pathophysiology. The damaged intestinal mucosa cannot absorb fats (lipids) effectively, so they are excreted in large amounts in the stool. This fat malabsorption, combined with the malabsorption of carbohydrates, proteins, and micronutrients, explains the child's failure to thrive and poor weight gain despite what the parents report as adequate caloric intake. The child is eating, but the body cannot utilize the nutrients. Abdominal distention, another classic symptom, results from the fermentation of unabsorbed carbohydrates by intestinal bacteria, producing gas, as well as from hypoproteinemia-induced edema in the gut wall. While the provided source notes that celiac disease can present with non-classic symptoms like tetany, the classic presentation in a toddler remains gastrointestinal malabsorption, making steatorrhea with growth failure the most indicative finding [1].

Why the Other Options Are Incorrect

-   Option 1: Projectile vomiting after meals with visible peristalsis is a classic presentation of pyloric stenosis, a condition typically seen in infants between 2 and 8 weeks of age, not a 3-year-old. It is caused by hypertrophy of the pyloric muscle, leading to gastric outlet obstruction. This pathophysiology is unrelated to the immune-mediated small bowel damage seen in celiac disease.

-   Option 3: Bloody diarrhea with mucus and fever is a classic triad for an infectious or inflammatory colitis, such as bacterial dysentery or inflammatory bowel disease (e.g., ulcerative colitis). This presentation indicates large bowel mucosal invasion and inflammation, which is distinct from the non-bloody, malabsorptive diarrhea of small bowel origin in celiac disease.

-   Option 4: Constipation alternating with watery diarrhea is a pattern often associated with irritable bowel syndrome (IBS). IBS is a functional gastrointestinal disorder related to gut-brain interaction and altered motility, not an immune-mediated mucosal injury. While some children with celiac disease can present with constipation, the alternating pattern with watery diarrhea is not the most indicative or classic finding, especially when compared to the clear malabsorptive picture of steatorrhea and failure to thrive.References (research sources)

- [1]Tetany in a Two-Year-Old Child With Undiagnosed Celiac Disease.Research articleRavi U, Chamarthi VS, Kashyap R, Torky A. (2025) · DOI: 10.7759/cureus.86437

## 임상 시나리오

Recognizing Celiac Disease in Young ChildrenKey assessment findings for early identification
The classic presentation in a 3-year-old includes steatorrhea (bulky, foul-smelling, fatty stools), abdominal distention, and failure to thrive despite adequate intake. These result from villous atrophy and subsequent malabsorption of fats, proteins, and micronutrients.

Abdominal distention is caused by the fermentation of unabsorbed carbohydrates by intestinal bacteria and hypoproteinemia-induced edema in the gut wall.

CautionDo not confuse the steatorrhea of celiac disease with bloody, mucoid stools from infectious colitis or the projectile vomiting of pyloric stenosis. A detailed dietary history focusing on gluten intake is critical for assessment.

## 핵심 개념

- **Steatorrhea** — Excretion of abnormal quantities of fat in the feces, resulting in stools that are bulky, pale, foul-smelling, and greasy, commonly seen in malabsorption syndromes like celiac disease.
- **Celiac Disease** — An immune-mediated systemic disorder triggered by the ingestion of gluten in genetically predisposed individuals, characterized by small intestinal villous atrophy and malabsorption.
- **Failure to Thrive** — A significant delay in physical growth and weight gain in infants and children, often associated with inadequate nutrition or underlying chronic disease such as celiac disease.
- **Villous Atrophy** — The flattening or blunting of the finger-like projections (villi) lining the small intestine, reducing the surface area for nutrient absorption, a hallmark pathological finding in celiac disease.

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