case_images: PMC10909319_01
case_images: Clinical photograph of the patient - Initial photo.
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case_images: Physical examination (Figure 1): Erythema, erosion, and crust formation are evident on the upper lip.
case_images: Histopathology of the skin lesion: Excessive keratinization, thickening of the spinous layer, and a significant infiltration of dense neutrophils in a band-like pattern in the superficial to mid-dermis (HEx100).
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case_images: Histopathology of the skin lesions (Figures 2-4): Hyperkeratosis accompanied by hypertrophy of the spinous layer is observed.
case_images: Histopathology of the skin lesion: A significant band-like infiltration of dense neutrophils in the superficial to mid-dermis, accompanied by a small amount of lymphocyte and neutrophil infiltration around the blood vessels in the dermal appendages. There is also dense proliferation of collagen fibers in the dermis (HEx200).
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case_images: Histopathology of the skin lesions (Figures 2-4): Hyperkeratosis accompanied by hypertrophy of the spinous layer is observed.
case_images: Histopathology of the skin lesion (HEx400).
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case_images: Histopathology of the skin lesions (Figures 2-4): Hyperkeratosis accompanied by hypertrophy of the spinous layer is observed.
case_images: Clinical photograph of the patient at the 1-month follow-up visit.
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case_images: The patient is currently being followed up (Figure 5).