Cryptococcosis mimicking cutaneous cellulitis in a patient suffering from rheumatoid arthritis: a case report

Probst, Corina and Pongratz, Georg and Capellino, Silvia and Szeimies, Rolf M. and Schoelmerich, Juergen and Fleck, Martin and Salzberger, Bernd and Ehrenstein, Boris (2010) Cryptococcosis mimicking cutaneous cellulitis in a patient suffering from rheumatoid arthritis: a case report. BMC INFECTIOUS DISEASES, 10: 239. ISSN 1471-2334,

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Abstract

Background: Cryptococcus neoformans is an encapsulated yeast and the most frequent cryptococcal species found in humans. Cryptococcosis is considered an opportunistic infection as it affects mainly immunosuppressed individuals. In humans, C. neoformans causes three types of infections: pulmonary cryptococcosis, cryptococcal meningitis and wound or cutaneous cryptococcosis. Case Presentation: An 81-year-old woman developed severe necrotizing cellulitis on her left arm without any preceding injury. The patient had been treated with systemic corticosteroids over twenty years for rheumatoid arthritis (RA). Skin biopsies of the wound area were initially interpreted as cutaneous vasculitis of unknown etiology. However, periodic acid Schiff staining and smear analysis later revealed structures consistent with Cryptococcus neoformans, and the infection was subsequently confirmed by culture. After the initiation of therapy with fluconazole 400 mg per day the general condition and the skin ulcers improved rapidly and the patient was discharged to a rehabilitation facility. Subsequently surgical debridement and skin grafting were performed. Conclusions: Opportunistic infections such as cryptococcosis can clinically and histologically mimic cutaneous vasculitis and have to be investigated rigorously as a differential diagnosis in immunosuppressed patients.

Item Type: Article
Uncontrolled Keywords: ORGAN TRANSPLANT RECIPIENTS; NEOFORMANS; VASCULITIS; GATTII; IMMUNOCOMPETENT; EPIDEMIOLOGY; MENINGITIS; OUTBREAK; UPDATE; HOST;
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Lehrstuhl für Innere Medizin I
Depositing User: Dr. Gernot Deinzer
Date Deposited: 15 Jul 2020 09:48
Last Modified: 15 Jul 2020 09:48
URI: https://pred.uni-regensburg.de/id/eprint/24323

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