Two Asymptomatic Plaques on the Chest of a Young Woman

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<h3>REPORT OF A CASE</h3> A 34-year-old white woman presented with a severalmonth history of two asymptomatic plaques on her chest. Review of systems and history were unremarkable. Physical examination revealed two well-demarcated, smooth, nonscaly erythematous plaques on her chest (<b>Figure 1</b>and<b>Figure 2</b>). A potassium hydroxide preparation was negative. The skin biopsy specimen with special stain is shown in<b>Figure 3</b>and<b>Figure 4</b>. What is your diagnosis? Figure 1. Figure 2. Figure 3. Figure 4. <h3>DIAGNOSIS:</h3> Plaquelike cutaneous mucinosis (PCM). <h3>HISTOPATHOLOGIC FINDINGS AND CLINICAL COURSE</h3> Alcian blue staining showed increased quantities of acid mucopolysaccharides. The patient was treated with 0.1% triamcinolone ointment twice daily for 2 weeks with minimal improvement. She was then offered antimalarials; however, she declined further therapy. <h3>DISCUSSION</h3> <i>Plaquelike cutaneous mucinosis</i>is an uncommon disorder of increased mucin deposition. A similar more common condition presenting with reticular lesions is called<i>reticular erythematous mucinosis (REM)</i>. Patients