case_images: PMC10474839_01
case_images: (A) Clinical manifestations before treatment (The scab is caused by the biopsy). (B) Significant improvement of the lesions after 3 weeks.
case_images: CCID-16-2337-g0001.jpg
case_images: PMC10474839_01_CCID-16-2337-g0001.jpg
case_images: f0001
case_images: A 61-year-old male presented with a red plaque on his left cheek for two months (Figure 1). After 3 weeks of oral administration, the plaque significantly flattened, and inflammation reduced (Figure 1).
case_images: Histopathology: (A) mild epidermal spongy edema with parakeratosis (hematoxylin-eosin, x100). (B) Extensive infiltration of inflammatory cells in the dermis, including eosinophils, neutrophils, and lymphocytes. The superficial capillaries in the dermis dilated, and the blood vessel walls ssuppl welled (hematoxylin-eosin, x400).
case_images: CCID-16-2337-g0002.jpg
case_images: PMC10474839_01_CCID-16-2337-g0002.jpg
case_images: f0002
case_images: The superficial capillaries in the dermis dilated, and the blood vessel walls swelled (Figure 2).