**Question:** The following statement about Keloid is true

A. Keloid is a benign tumor
B. Keloid is a malignant tumor
C. Keloid is a scar that does not fade away
D. Keloid is a rare condition affecting only 1% of the population

**Core Concept:** Keloid is a type of فرط التنسج (hypertrophy) characterized by excessive collagen deposition in the dermal layer of the skin, leading to an abnormal scar formation.

**Why the Correct Answer is Right:**

Keloids are not tumors but rather a benign (non-cancerous) form of scarring that occurs due to the overproduction of collagen. They are not tumors because they involve a localized overgrowth of tissue (skin) rather than spreading to invade surrounding tissues and form a mass.

**Why Each Wrong Option is Incorrect:**

A. Keloids are not tumors because they are not the result of uncontrolled cell division or malignant growth (cancer). Unlike tumors, keloids do not spread and invade healthy tissue.

B. Keloids are not malignant tumors because they are benign (non-cancerous) and do not spread to invade surrounding tissues.

C. While keloids are scars, the statement "keloid is a scar that does not fade away" is not entirely accurate. Keloids do not completely disappear, but they can change in size and appearance over time.

D. Keloids are relatively common and affect around 10-15% of the population, not only 1%. They are more common in individuals of African, Asian, and Hispanic descent.

**Clinical Pearl:** Keloids are often associated with a family history of keloids, traumatic events (like earlobe piercing or burns), and are more common in individuals with a predisposition, such as those of African, Asian, or Hispanic descent. Keloid treatment options include corticosteroids, laser therapy, and surgery, but prevention is key, including avoiding traumatic events or wearing earring backs with a butterfly clasp instead of a post to reduce the risk of keloid formation after earlobe piercing.

**Correct Answer:** D. Keloids are relatively common and affect around 10-15% of the population, not only 1%. They are more common in individuals of African, Asian, and Hispanic descent.

**Core Concept:** Keloids are characterized by an abnormal scar formation due to excessive collagen production in response to skin injury. They can be triggered by trauma, such as earlobe piercing or burns, and are more common in certain ethnic groups.

**Why Each Wrong Option is Incorrect:**

A. This option is incorrect because it misrepresents keloids as malignant tumors that do not fade away. Keloids are benign (non-cancerous) scars that do not completely disappear but can change in size and appearance over time.

B. This option is incorrect because it suggests that keloids affect 1% of the population, which is not accurate. Keloids affect around 10-15% of the population, making them more common than depicted in