Doi's sign
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| Doi's sign | |
|---|---|
| Differential diagnosis | Eaton-Lambert syndrome |
Doi's sign is a clinical sign in which absent deep tendon reflexes can be elicited after a short period of maximal muscle contraction. This occurs in patients with Eaton-Lambert syndrome, but is not seen in patients with neuropathy.
The sign is named after Hitoka Doi, M.D., who described it in 1978.