Common variable immunodeficiency disorders (CVIDs), a heterogeneous group of primary immune deficiencies, can present at all age. Our patient with a hitherto undiagnosed CVID, symptomatic since middle ages, presented with severe pneumonia. Specific management of his CVID in addition to standard therapy was life-saving.
Adult primary immune deficiency; common variable immune deficiency; intravenous immunoglobulin; late onset common immunodeficiency; non-resolving pneumonia
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