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CASE REPORT
An 80-year-old man presented to our outpatient clinic with purple and blue pigment spots on his fingers, hands, and face, particularly around his eyes. He was diagnosed with a smouldering IgG lambda multiple myeloma six years earlier, for which he was receiving follow-up care. Laboratory results showed IgG lambda values of 30 g/l, an isolated anaemia (haemoglobin 7.4 mmol/l) and normal coagulation values. Bone marrow biopsy and aspiration were repeated and demonstrated an increase in plasma cells.
WHAT IS THE DIAGNOSIS?
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