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Lessons to be learned: a case study approach--acute appendicitis masquerading as macroamylasaemia
Muniappan Ganesh1, Imroz Salam
1Royal Glamorgan Hospital, Llantrisant CF72 8TG, United Kingdom. dr_ganeshm@yahoo.com
Summary
Macroamylasaemia is a rare condition causing high serum amylase but normal kidney function. Recognizing this condition prevents misdiagnosis of pancreatitis and ensures appropriate patient care.
Area of Science:
- Clinical Biochemistry
- Internal Medicine
- Diagnostic challenges
Background:
- Macroamylasaemia is a rare condition characterized by elevated serum amylase with normal urinary amylase and renal function.
- It can mimic other clinical conditions, leading to diagnostic challenges.
Observation:
- A case report details a patient presenting with abdominal pain and markedly elevated serum amylase.
- Initial diagnosis suggested acute pancreatitis, but abdominal CT scans were normal.
- A low renal amylase:creatinine clearance ratio (C(am)/C(cr)) was identified.
Findings:
- The low C(am)/C(cr) ratio is diagnostic of macroamylasaemia.
- Macroamylasaemia was the underlying cause of the elevated serum amylase, masquerading as pancreatitis.
- The patient's appendicitis was treated with appendicectomy, leading to recovery.
Implications:
- Accurate recognition of macroamylasaemia is crucial to avoid misdiagnosis of acute pancreatitis.
- This recognition prevents unnecessary and potentially harmful treatments.
- Understanding macroamylasaemia improves diagnostic accuracy and patient management.
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