We report four cases of cryptococcosis presenting as upper limb cellulitis or ulceration, or both. Three of the four patients were on long-term prednisolone therapy at the time of presentation. In each case, the diagnosis of cryptococcosis was established by a biopsy of the skin. Only one of the four patients had conclusive evidence of disseminated disease. Our cases highlight the importance of skin biopsy in immunosuppressed individuals presenting with cellulitis, particularly when the cellulitis occurs in an atypical location and when the clinical condition fails to respond to standard antibacterial therapy.

A 42-year-old woman presented with blue lunulae in association with argyria and hypercopprecaemia. The argyria was caused by the regular ingestion of colloidal silver in water over an extended period of time. The raised copper may have contributed to the nail discolouration, and was believed to be due either to ingestion of copper-containing multivitamin tablets or as an acute-phase reactant. We believe that the ease of access to, and lack of stringent regulatory controls over, food supplements and alternative medicines may cause similar cases in the future. We therefore recommend that all patients should be routinely questioned on their use of over-the-counter preparations and alternative medicines.

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