The child in the image presents with prominent yellow discoloration of the sclera. This finding is most consistent with:

Question

Accepted Answer

C. Jaundice. ## Image Findings
*   Prominent yellow discoloration of both sclerae (scleral icterus).
*   The child appears to be of Indian ethnicity.

## Diagnosis
**Key Point:** The striking yellow discoloration of the sclera is pathognomonic for **jaundice**, also known as icterus, which indicates elevated levels of bilirubin in the blood.

Jaundice is a yellow pigmentation of the skin, conjunctival membranes, and other mucous membranes caused by hyperbilirubinemia. **Scleral icterus** is often the earliest and most reliable clinical sign of jaundice, especially in individuals with darker skin tones where skin discoloration might be less obvious. Bilirubin has a particular affinity for elastic tissue, which is abundant in the sclera.

## Clinical Relevance
**Clinical Pearl:** Scleral icterus becomes clinically apparent when serum bilirubin levels exceed **2-3 mg/dL**. It is crucial to identify jaundice as it can be a sign of serious underlying liver disease, hemolytic disorders, or biliary obstruction. In children, causes can range from physiological jaundice of the newborn to more serious conditions like viral hepatitis, biliary atresia, or hemolytic anemia.

## High-Yield for NEET PG
**High-Yield:** The **sclera** is the best site to check for jaundice, especially in individuals with darker skin, due to the high elastin content which has an affinity for bilirubin.
**Key Point:** Carotenemia causes yellow discoloration of the skin but **spares the sclera**, which is a key differentiating feature from jaundice.

## Common Traps
**Warning:** Do not confuse the yellow discoloration of the sclera (jaundice) with the yellow discoloration of the skin (which can be due to jaundice or carotenemia). Always check the sclera for true icterus.

## Reference
[cite:Harrison's Principles of Internal Medicine, 20th Edition, Chapter 46: Jaundice]

Answer

A. Carotenemia

Answer

B. Anemia

Answer

D. Conjunctivitis

The child in the image presents with prominent yellow discoloration of the sclera. This finding is most consistent with:

Explanation

Image Findings

Diagnosis

Differential Diagnosis

Clinical Relevance

High-Yield for NEET PG

Common Traps

Reference

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Feature	Jaundice (Hyperbilirubinemia)	Carotenemia	Conjunctivitis	Anemia
Sclera	Yellow (scleral icterus)	Spared (white)	Redness, discharge, irritation	Pallor
Skin Discoloration	Yellowish, often generalized	Yellowish, especially palms, soles, nasolabial folds	Normal skin color	Pallor of skin and mucous membranes
Underlying Cause	Elevated bilirubin (pre-hepatic, hepatic, post-hepatic)	Excessive intake of carotene-rich foods (e.g., carrots, pumpkin)	Inflammation/infection of conjunctiva	Decreased hemoglobin or red blood cell count
Other Symptoms	Dark urine, pale stools (obstructive), pruritus, fatigue	Asymptomatic, benign	Itching, burning, foreign body sensation, photophobia	Fatigue, weakness, dyspnea, palpitations