Primary & Secondary Lesions

What are primary lesions characterized by?

External causes.

Changes in primary lesions.

Initial lesions of the disease itself.

Trauma, infections, or changes caused by wound healing.

Which of the following is an example of a primary lesion?

Ruptured vesicles.

Papule.

Ulcer.

Erosion.

What is the characteristic of a macule?

Elevated, palpable mass containing serous fluid.

Loss of superficial epidermis.

Depressed, moist area.

Flat, non-palpable skin color change.

Which skin lesion is typically larger than 0.5 cm and contains serous fluid?

Macule.

Bulla.

Plaque.

Vesicle.

What is the main difference between papules and nodules?

Papules are flat, non-palpable skin color changes, while nodules are elevated, palpable masses with a circumscribed border.

Nodules extend deeper into the dermis than papules.

Papules extend deeper into the dermis than nodules.

Nodules do not extend to the dermis, while papules do.

Which skin lesion represents replacement by connective tissue of the injured tissue?

Scar (Cicatrix).

Ulcer.

Wheal.

Nodule.

What is the characteristic of an erosion?

Linear crack in the skin.

Elevates mass with transient borders.

Loss of superficial epidermis that does not extend to the dermis.

Elevated, palpable solid mass.

Which skin lesion represents skin loss extending past the epidermis?

Ulcer.

Erosion.

Fissure.

Crust.

Which skin lesion is a dried residue of serum, blood, or pus on the skin surface?

Scar (Cicatrix).

Ulcer.

Wheal.

Crust.

What is a keloid?

A round red or purple macule.

A hypertrophied scar tissue.

A linear crack in the skin.

Dried residue of serum, blood, or pus on the skin surface.

What is the characteristic of a petechia?

Hypertrophied scar tissue.

Round or irregular macular lesion that is larger than a petechia.

Dried residue of serum, blood, or pus on the skin surface.

Round red or purple macule secondary to blood extravasations.

What is the characteristic of an ecchymosis?

Red or purple papule secondary to blood extravasations.

A round or irregular macular lesion that is smaller than a petechia.

A round or irregular macular lesion that is larger than a petechia.

Dried residue of serum, blood, or pus on the skin surface.

How does a nodule differ from a papule?

Nodules are elevated, palpable solid masses that extend deeper into the dermis than papules.

Nodules are flat, non-palpable skin color changes, while papules extend deeper into the dermis.

Nodules are characterized by loss of superficial epidermis, while papules do not extend to the dermis.

Nodules are linear cracks in the skin, while papules are elevated, palpable masses with transient borders.

What is the characteristic of a fissure?

Elevated mass with transient borders.

Dried residue of serum, blood, or pus on the skin surface.

Linear crack in the skin that may extend to the dermis.

Hypertrophied scar tissue.

Which skin lesion represents a round or irregular macular lesion associated with trauma?

Macule.

Ulcer.

Ecchymosis.

Vesicle.

Which skin lesion is associated with bleeding tendencies or emboli to the skin?

Petechia.

Nodule.

Plaque.

Vesicle.

What is the characteristic of a tumor?

Flat, non-palpable skin color change.

Linear crack in the skin that may extend to the dermis.

Elevated, palpable solid mass that extends deeper into the dermis than a papule.

Round or irregular macular lesion.

Primary & Secondary Lesions

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