REPORT OF A CASE
A 66-year-old woman was seen for examination of an erythematous, bumpy plaque of 10 months' duration on the lower abdominal wall. Findings from the physical examination showed a triangular-shaped, indurated, and erythematous plaque with irregular borders in the hypogastric area (Fig 1). The surface was corrugated, and the follicular openings were exaggerated (Fig 2). Other cutaneous manifestations included facial erythema with a violaceous hue, especially marked on the upper eyelids, and bluish-red plaques on the dorsa of the fingers.In the 2 years before her presentation, the patient experienced a 10-kg weight loss, malaise, and weakness of the limb muscles. Laboratory investigations demonstrated the following values or results: erythrocyte sedimentation rate, 80 mm/h; creatine phosphokinase, 1036 U/L (normal, <175 U/L); lactate dehydrogenase, 820 U/L (normal, <430 U/L); aspartate aminotransaminase, 178 U/L (normal, <37 U/L); antinuclear antibodies, positive (titer, 1/80 [homogeneous pattern]); anti-ssDNA, positive (429 U/mL);
Requena L, Aguilar A, Yus ES. A Corrugated Plaque on the Abdominal Wall. Arch Dermatol. 1990;126(12):1641–1642. doi:10.1001/archderm.1990.01670360105021
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