Mallet-Guy sign
Mallet-Guy sign is a medical sign to detect signs of pancreatitis. It is pain elicited with deep palpation of the left subcostal and epigastric region, suggesting pancreatic inflammation. It is named after Pierre Mallet-Guy.
Other names[edit | edit source]
The Mallet finger sign, sometimes known as the "fallen finger sign," can be suggestive of acute pancreatitis. Inflammation of the tendons that extend the distal interphalangeal joint (DIP) of the finger leads to a drooping or "mallet" deformity.
Acute pancreatitis[edit | edit source]
In acute pancreatitis, the activation of pancreatic enzymes results in the death of pancreatic tissue, causing inflammation. Acute pancreatitis is characterized by abdominal discomfort, nausea, vomiting, and fever. The mallet finger sign is not a particular indicator of acute pancreatitis, but it is a rare finding that may be present in severe cases.
Cause[edit | edit source]
Inflammation of the tendons that expand the DIP joint are the source of the mallet finger sign. The tendons of the DIP joint are positioned in a confined region, and inflammation causes them to enlarge, preventing the joint from extending entirely. This causes the typical "mallet" or drooping finger malformation.
Diagnosis[edit | edit source]
Acute pancreatitis is often diagnosed based on the patient's clinical presentation, laboratory tests, and imaging studies. In general, pancreatitis is treated with supportive treatment, such as fluid replacement and pain control, as well as any underlying causes, such as gallstones or alcohol consumption.
Clinical use[edit | edit source]
Noting that the Mallet finger sign is a rare indicator of acute pancreatitis and that it should not be used alone to make a diagnosis is essential. Clinical presentation, laboratory tests, and imaging studies are required for accurate diagnosis and treatment.
References[edit | edit source]
- Banks, P.A., Freeman, M.L., et al. (2006). Acute Pancreatitis. The New England Journal of Medicine, 354(4), 414-422.
- Freeny, P.C., DiSario, J.A., et al. (2002). Acute Pancreatitis: An Update. American Family Physician, 65(11), 2253-2262.
- Rau, B., Ringe, B., et al. (2003). Acute Pancreatitis - Diagnosis and Therapy. Deutsches Aerzteblatt International, 100(9), 147-153.
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Contributors: Prab R. Tumpati, MD
