case_images: PMC11007069_01
case_images: Malignant atrophic papulosis. (A) The porcelain-white, irregularly shaped atrophic papules with erythematous rims of telangiectasia on the abdomen, some of them developed scabs in the center. On August 23, the patient underwent exploratory laparotomy due to the first intestinal perforation, leading to the scar. (B) Close-up view of atrophic papules.
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case_images: PMC11007069_01_fcvm-11-1347587-g001.jpg
case_images: F1
case_images: These papules with porcelain white centers and clear boundaries were irregular in shape and developed black scabs in some centers (Figure 1).
case_images: Dermatopathology of malignant atrophic papulosis. (A) Local epidermal atrophy with mild keratinization, local tissue necrosis with infiltration of inflammatory cells, and increased dermal mucin. (B) Fibrous occlusion of the arteriolar lumen and mild fibrous thickening of the intima of venules, and lymphocytes and individual plasma cells can be seen gathering and infiltrating around the above blood vessels. (A and B, Hematoxylin-eosin stain; original magnification: A, x40; B, x200).
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case_images: PMC11007069_01_fcvm-11-1347587-g002.jpg
case_images: F2
case_images: Contrast-enhanced abdominal computed tomography revealed enteritis, colitis, intestinal obstruction, and a small amount of pelvic fluid (Supplementary Figure S2). It supported the clinical diagnosis of MAP (Figure 2).