Which of the following pigmentation changes is typically seen with split thickness skin grafts?

• A. Hypopigmentation
• B. Hyperpigmentation
• C. Achromaticity
• D. Normal pigmentation

Answer: (B)

In the context of split thickness skin grafts, hyperpigmentation is often observed in areas where these grafts are applied. This phenomenon occurs due to the response of the dermal and epidermal tissues in the grafted area after surgical placement. The residual melanocytes, which are the cells responsible for producing melanin, may become more active or proliferate in response to the healing process, leading to an increase in melanin production.

Furthermore, areas that undergo healing can experience increased blood flow and inflammation, which might stimulate the melanocytes further, resulting in a darker appearance in the grafted area compared to the surrounding skin. Over time, this can result in hyperpigmentation as the remodeling of the skin occurs.

Other options, such as hypopigmentation and achromaticity, would not accurately describe the typical changes seen with split thickness grafts. Hypopigmentation may happen due to factors like scarring or loss of melanocytes, which is less common in these cases. Achromaticity refers to the complete absence of color, which is also not typical for grafts where some pigmentation is retained or enhanced. Lastly, normal pigmentation would imply that the grafted area matches the surrounding skin color, which is not usually the case immediately after