The more common manifestations of cryptococcal infections are restricted to the central nervous system and lungs. We report an unusual case of fungal osteomyelitis due to Cryptococcus. The patient was a young man who had been adequately treated for pulmonary tuberculosis three years prior. Three months before, he sustained a minor road-traffic accident with only minor abrasions. He presented with subacute chest pain of 15 days’ duration and was found to have radiological evidence of a lytic lesion of the fifth rib. Given prior tuberculosis, he was thought to have a relapse of disease with tuberculous osteomyelitis. Surprisingly, a biopsy revealed evidence of fungal osteomyelitis with Cryptococcus. An evaluation for primary immunodeficiency revealed low CD4 cell counts with undetectable serum IgA and IgM levels. Genetic sequencing proved a genetic mutation consistent with primary T-cell immunodeficiency. The patient responded well to treatment and is asymptomatic on follow-up.
The more common manifestations of cryptococcal infections are restricted to the central nervous system and lungs. A young man, suffering from idiopathic dilated cardiomyopathy with a left ventricular ejection fraction of 20%, presented with subacute, painful tender swelling in both legs initially attributed to congestive cardiac failure. No response to diuretics was achieved. Metabolically active lesions in the muscles of both lower limbs suggestive of muscle abscesses were found. A diagnosis of tropical pyomyositis was therefore made, but aspiration surprisingly revealed gram-positive yeast cells, staining of which on India ink and culture confirmed Cryptococcus. A good response to a combination of liposomal amphotericin B and flucytosine was obtained, but nevertheless the patient died from heart failure after induction of antifungal therapy.
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