Macroamylasemia is the presence of an abnormal substance called macroamylase in the blood.
Macroamylase is a substance that consists of an enzyme, called amylase, attached to a protein. Because it is large, macroamylase is filtered very slowly from the blood by the kidneys.
Most people with macroamylasemia do not have a serious disease that is causing it, but the condition has been associated with:
Macroamylasemia does not cause symptoms.
Frasca JD, Velez MJ. Acute pancreatitis. In: Parsons PE, Wiener-Kronish JP, Stapleton RD, Berra L, eds. Critical Care Secrets. 6th ed. Philadelphia, PA: Elsevier; 2019:chap 52.
Siddiqi HA, Salwen MJ, Shaikh MF, Bowne WB. Laboratory diagnosis of gastrointestinal and pancreatic disorders. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 23rd ed. St Louis, MO: Elsevier; 2017:chap 22.
Tenner S, Steinberg WM. Acute pancreatitis. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease: Pathophysiology/Diagnosis/Management. 10th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 58.