Journal
DERMATOLOGY AND THERAPY
Volume 11, Issue 4, Pages 1217-1237Publisher
ADIS INT LTD
DOI: 10.1007/s13555-021-00571-3
Keywords
Pyoderma gangrenosum; Hemophagocytic lymphohistiocytosis; HLH; Anakinra; Double-negative T lymphocytes; DNTs; Etoposide
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Pyoderma gangrenosum (PG) is a serious skin disease with unknown etiology often associated with underlying conditions, making diagnosis and treatment challenging. Careful monitoring for comorbidities and early intervention are crucial for better prognosis.
Pyoderma gangrenosum (PG) is an uncommon, serious, ulcerating skin disease of uncertain etiology. It manifests as a noninfectious, progressive necrosis of the skin characterized by sterile neutrophilic infiltrates. It seems to be a disorder of the immune system. PG is associated with certain underlying conditions in at least 50% of cases. Therefore, it is important to look carefully for comorbidities in every patient with PG and treat them adequately to improve the prognosis. Here, we demonstrate a 35-year-old man diagnosed with multifocal PG and hemophagocytic lymphohistiocytosis (HLH) with fatal outcome, despite combined, long-term, intensive dermatological and hematological treatment with high doses of steroids, cyclosporin, intravenous immunoglobulins (IVIG), HLH-2004 protocol with intravenously administered etoposide, and anakinra. This case is presented owing to the extremely rare coexistence of PG and HLH and the related diagnostic and therapeutic difficulties. It is also worth underlying that the diagnosis of HLH should perhaps be considered in the presence of a high percentage of double-negative T lymphocytes (DNTs) in flow cytometry, after excluding the diagnosis of lymphoma and leukemia. In this article we have also performed and present the critical literature review of local and systemic options in the management of PG lesions based on a detailed search of the PubMed database.
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