A 26-year-old man comes to the physician for a follow-up appointment. Two weeks ago, he scraped his forearm while falling off his bicycle. The wound was irrigated with sterile saline and disinfected with topical iodine. A few sutures were applied, which were removed one week ago. Vitals are normal. Physical examination of the wound shows erythematous skin with regions of fibrin coating. There is no warmth or tenderness. The patient says the area is sometimes intensely itchy. There are mild excoriations adjacent the wound. Vitals are normal. Light microscopy of a biopsy of the area is shown.
Which of the following is the most likely explanation for these findings?
Acute infection
Allergy
Hidradenitis
Granulation
Granuloma
