Retinoblastoma is a tumor of the eye usually diagnosed in children under 2. Which sign is typical?

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Multiple Choice

Retinoblastoma is a tumor of the eye usually diagnosed in children under 2. Which sign is typical?

Explanation:
Leukocoria, a white reflex seen when light shines into the eye, is the hallmark sign of retinoblastoma in young children. The intraocular tumor alters retinal reflection, producing a white or milky pupil instead of the normal red glow. This is why the white reflex on the pupil is the best-fitting sign for this condition. The normal red reflex would not indicate a problem, and while cataracts can also cause a white reflex, retinoblastoma is classically identified by leukocoria. A swollen retina is not the typical isolated presenting sign for this tumor.

Leukocoria, a white reflex seen when light shines into the eye, is the hallmark sign of retinoblastoma in young children. The intraocular tumor alters retinal reflection, producing a white or milky pupil instead of the normal red glow. This is why the white reflex on the pupil is the best-fitting sign for this condition. The normal red reflex would not indicate a problem, and while cataracts can also cause a white reflex, retinoblastoma is classically identified by leukocoria. A swollen retina is not the typical isolated presenting sign for this tumor.

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