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In this report, we described a 58-year-old man, presenting with multiple plaques and nodules over the nose and forehead resembling sarcoidosis or lepromatous leprosy. The histologic study revealed deposition of the mass of amorphous, eosinophilic-cleaved, colloid materials in the papillary dermis and deep dermis. The periodic acid-Schiff (PAS) stain was positive, whereas the Congo red stain was negative.  Based on the clinical and pathologic findings , the patient was diagnosed with nodular colloid degeneration(NCD). To treat the patient, lesions were flattened using a Co2 laser. The patient did not return for follow-up.  NCD is a rare disease,  with only 12 cases having been previously reported. Here, we present a case of NCD that occurred on the face and discuss the topic of how to discriminate between NCD and other similar entities, emphasizing that nodular colloid degeneration should be  considered  in the differential diagnosis of asymptomatic facial plaques and nodules.

Case Report: Nodular colloid degeneration of the skin