Tumors may penetrate into the dermis and be:

• A. Benign
• B. Malignant
• C. Liquid
• D. Both A and B

Answer: (D)

Depth and behavior of a growth in the skin are what matter here. When a tumor reaches into the dermis, it means the lesion has extended beyond the epidermal layer into the deeper skin layer. Tumors that reside or extend into the dermis can be benign in nature or malignant, depending on their microscopic characteristics and how they interact with surrounding tissues.

Benign dermal lesions exist and are typically well-contained; examples include intradermal nevi and other noninvasive dermal tumors. They occupy the dermal space without invading adjacent structures in a destructive way. On the other hand, malignant tumors are defined by their invasive behavior into the dermis and beyond, with potential for further spread.

So, a growth that penetrates into the dermis could be either benign or malignant, depending on its pathology. The other option isn’t fitting because tumors are solid masses, not liquids.