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Multiple osseous involvements in a case of disseminated cryptococcosis

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Author(s): Singh Rakesh | Xess I

Journal: Indian Journal of Orthopaedics
ISSN 0019-5413

Volume: 44;
Issue: 3;
Start page: 336;
Date: 2010;
Original page

Keywords: Disseminated cryptococcosis | vertebral cryptococcosis | Cryptococcus neoformans

ABSTRACT
Osseous involvement occurs in 5-10% of patients with disseminated cryptococcosis. We are reporting an unusual case of disseminated cryptococcosis involving the sternum and lumbar vertebra with the formation of psoas abscess with pulmonary tuberculosis. The patient presented with fever for 3 months. A diagnosis of pulmonary tuberculosis was made on thoracic contrast-enhanced computerized tomography and she was put on antituberculosis treatment. She was immunocompetent with negative human immunodeficiency virus. She conceived subsequently and had complaints of backache and swelling over the sternum. Magnetic resonance imaging showed destruction of L5 vertebra with psoas abscess. Vertebral cryptococcosis may mimic tuberculosis and malignancy. She had a bad obstetric history and experienced five, first-trimester spontaneous abortions in each successive year since 2001. This pregnancy again resulted in spontaneous abortion. Cryptococcus neoformans was isolated from two different sites: pus-involving the sternum and ultrasound-guided psoas abscess aspirate. Serum latex agglutination test for cryptococcal capsular polysaccharide antigen was positive. The diagnosis of cryptococcosis was delayed because the patient was diagnosed as a case of pulmonary tuberculosis, wherein clinical signs, symptoms and radiological findings in both the conditions are similar. Amphotericin B was started but she developed varicella infection and expired due to cardiac failure.
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