A case of classic chronic calcific constrictive pericarditis had a benign 11-year course until appearance of an intercurrent lymphoma. Following treatment of the lymphoma there was a remission in the hemodynamic abnormalities caused by the pericarditis. It is important to consider complicating factors in the evaluation of constrictive pericarditis.
Lawrence LT, Rochmis PG. Chronic Constrictive Pericarditis With Unexpected Remission. JAMA. 1967;202(1):66–68. doi:10.1001/jama.1967.03130140124030