Canards sign
Canards sign is a rare but positive sign during the physical examination for the diagnosis of acute splenomegaly, it is used to complement the more traditional Castell's sign. The patient often presents with generalised symptoms such as LUQ abdominal pain, fevers and rigor. Canard's sign is a specific sign for this diagnosis. Canard's sign can be completed by having the patient raise their arms above their head and bring them down to the side at the same time. Canard's sign is a positive response when the patient experiences sudden pain in the left arm pit during this movement.
Signs of splenomegaly may include a palpable left upper quadrant abdominal mass or splenic rub. It is more traditionally detected on physical examination by using Castell's sign or Traube's space, but an ultrasound can be used to confirm diagnosis. In patients where the likelihood of splenomegaly is high, the physical exam is not sufficiently sensitive to detect it; abdominal imaging is indicated in such patients.[3]
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