Select the option that correctly describes the condition being shown in the following image.

DSSSB 6 September 2024

Pathology & Genetics

Easy

Appeared in: DSSSB 6 September 2024

Explanation

Albinism is a genetic disorder characterized by a partial or complete lack of melanin pigment in the skin, hair, and eyes.
The image displays a child with the classic features of oculocutaneous albinism: very pale skin, white or extremely light hair, and light-colored eyes.
The condition is most commonly caused by a deficiency in the enzyme tyrosinase, which is necessary for producing melanin.
Associated symptoms often include vision problems like photophobia (light sensitivity), nystagmus (involuntary eye movements), and an increased risk of skin cancer due to lack of sun protection from melanin.

Option B: Microcavity is a term for a very small physical space, often used in physics or dentistry, and is not a medical diagnosis for a pigmentation disorder.
Option C: Acromiuria is not a recognized medical term. It appears to be a fabricated distractor.
Option D: Marie's disease, also known as acromegaly, involves the enlargement of extremities and facial features due to excess growth hormone. The child in the image does not show these features.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of genetic pigmentation disorders based on visual signs as background academic context rather than a clinical decision trigger.
Nurses play a vital role in educating patients with albinism and their families about lifelong sun protection to prevent skin cancer, which is a major risk.
Care involves coordinating regular ophthalmology and dermatology appointments to manage vision issues and screen for malignancies.
Patient counseling should include the use of visual aids, managing photophobia with sunglasses, and genetic counseling for families.

How to Approach the Question

First, carefully observe the image provided. Note the distinct physical characteristics of the child: extremely pale skin, very light (white/blonde) hair, and light-colored eyes.
Formulate a hypothesis based on these visual cues. The combination of these features strongly suggests a lack of normal pigmentation (melanin).
Next, evaluate each of the given options to see which one aligns with your hypothesis.
Analyze 'Albinism': This is a known genetic condition defined by a lack of melanin, which perfectly matches the visual evidence.
Analyze the other options: 'Microcavity', 'Acromiuria', and 'Marie's disease'. Quickly rule them out as they are either irrelevant, non-medical terms, or describe completely different conditions.
Conclude that 'Albinism' is the only plausible diagnosis that correctly describes the condition shown in the image.

Concept Tested & Keywords

Concept Tested: Identification of genetic pigmentation disorders based on visual signs.
Stem keywords: image, child, condition
Lead-in keywords: correctly describes
Clinical cues: The child's very light hair, skin, and eye color are the primary clinical cues pointing to a lack of melanin.

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