My scalp has no laxity, and I have had previous scalp surgeries to treat injuries. Now, I have been diagnosed with basal cell carcinoma, which will be excised soon. The wound cannot be closed; it must heal by second intention (time and wound care). I will be left with a fairly large bald spot that my hair cannot cover. I do not want a hair transplant. What are my reconstructive surgical options? Tissue expansion? Could tissue expansion cause tissue necrosis?