Lowenberg's sign is a
clinical sign
Signs and symptoms are the observed or detectable signs, and experienced symptoms of an illness, injury, or condition. A sign for example may be a higher or lower temperature than normal, raised or lowered blood pressure or an abnormality showin ...
found in patients with
deep vein thrombosis of the
lower leg. The sign is positive when pain is elicited rapidly when a blood pressure cuff is placed around the calf and inflated to 80
mmHg
A millimetre of mercury is a manometric unit of pressure, formerly defined as the extra pressure generated by a column of mercury one millimetre high, and currently defined as exactly pascals. It is denoted mmHg or mm Hg.
Although not an SI ...
. Like other signs of deep vein thrombosis, such as
Homans sign
In medicine, Homans' sign (sometimes spelled as Homans sign or called dorsiflexion sign) is considered by some physicians to be a sign of deep vein thrombosis (DVT). It was defined by John Homans
John Homans (1877–1954) was an American surgeon ...
and
Bancroft's sign, this sign is neither sensitive nor specific for the presence of thrombosis.
The sign is named after Robert I. Lowenberg (1917–2000), who described it in 1954.
References
Symptoms and signs: Vascular
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