[Two cases of B-cell disease coexisting with acromegaly]

The first two Danish cases of a B cell disease co-existing with acromegaly are reported, although over the last twelve years similar cases have been reported worldwide. We can only conclude that acromegaly might predispose to B cell diseases and therefore it is still important to report new cases. It is relevant to consider acromegalic patients as having an elevated risk of developing such diseases. Any signs of acromegaly should be taken seriously in patients with B cell diseases. We also suggest that abuse of GH, as seen in certain sports, may increase the risk of developing malignant B cell diseases.