​A large blister

A) bulla
B) macule
C) tumor

Large Blister

A fluid-filled bump on the skin of significantly large size, often resulting from friction, burns, or other injuries.

Bulla

A large blister or skin vesicle filled with fluid, often appearing as a symptom of various diseases or skin conditions.

Skin Lesion

Any abnormal change in the tissue of an organism's skin, which could range from benign to malignant.