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PPG should be considered in the differential diagnosis of postsurgical wound complications. Recognition of this condition may prevent unnecessary administration of antimicrobial treatment and development of more extensive ulcerations. It may also be the clue for the diagnosis of an underlying systemic disease. We discuss the usefulness of 16S rRNA sequencing for microbial detection and identification in order to exclude a causative infection in patients who have previously received antibiotic treatment.

Juvenile xanthogranuloma is a benign, self-healing disorder with characteristic lesions mainly involving the skin. Although most patients with juvenile xanthogranuloma have only cutaneous symptoms, recent articles have documented extracutaneous manifestations: systemic involvement of many organs has been reported and there is a known association between juvenile xanthogranuloma and childhood leukemia, most commonly juvenile chronic myelogenous leukemia. This case provides further corroboration, that in rare instances, juvenile xanthogranuloma may be associated with hematologic malignancies.

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