Brudziński's sign

Brudziński's sign or a Brudziński sign is any of three medical signs, all of which may occur in meningism. All three are named after Józef Brudziński. In English, the name is often written without the diacritic (like many borrowed words) (Brudzinski) and is pronounced /bruːˈdʒɪnski/.

The Brudziński cheek sign or Brudziński's cheek phenomenon is a clinical sign in which pressure on the cheek elicits a reflex rise and flexion of the forearm. It is found in patients with meningitis, and is analogous to the Brudziński symphyseal sign in the lower limb.

The Brudziński symphyseal sign is a clinical sign in which pressure on the pubic symphysis elicits a reflex flexion of the hip and knee, and abduction of the leg. It is found in patients with meningitis, and is analogous to the Brudziński cheek sign in the upper limb. This sign was also independently discovered by a Brazilian Clinician, by the name of Aloysio De Castro (1881-1959) in 1912, and is commonly called as the Aloysio De Castro's Sign in Brazil.

The Brudziński neck sign or Brudziński's symptom is a clinical sign in which forced flexion of the neck elicits a reflex flexion of the hips. It is found in patients with meningitis, subarachnoid haemorrhage and possibly encephalitis. It is not very commonly seen.

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