Oppenheim's sign

Oppenheim's sign is dorsiflexion of the big toe elicited by irritation downward of the medial side of the tibia^[1]

Positive sign indicates a damage to the pyramidal tract.

References

^ Swartz, Mark H. (2006). Textbook of Physical Diagnosis: History and Examination With STUDENT CONSULT Online Access. Philadelphia: Saunders. pp. 694. ISBN 141600307x.
^ synd/1573 at Who Named It?
^ H. Oppenheim. Zur Pathologie der Hautreflexe der unteren Extremitäten. Monatsschrift für Psychiatrie und Neurologie, 1902, 12: 421-423.

Head, general	Battle's sign · Broca aphasia · Kernig's sign · Macewen's sign · Myerson's sign · Stroop test · Wada test · Dix-Hallpike test · Hirano body

Multiple sclerosis	Dawson's fingers · Lhermitte's sign · Charcot's neurologic triad · Uhthoff's phenomenon

Other	Romberg's test · increased intracranial pressure (Cushing's triad) · Miller Fisher test

Combination	Jendrassik maneuver

Lower limb	Babinski sign · Chaddock reflex · Oppenheim's sign · Westphal's sign

Upper limb	Hoffmann's sign

Other torso/limbs

Upper limb	Froment's sign · carpal tunnel syndrome (Tinel sign, Phalen maneuver)

Lower limb	Abadie's sign of tabes dorsalis · Gowers' sign · Hoover's sign · Lasègue's sign · Trendelenburg's sign

Torso	Beevor's sign

General	Todd's paresis · Jolly's test

Mental/behavioral

anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco(m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug(N1A/2AB/C/3/4/7A/B/C/D)

anat(h/r/t/c/b/l/s/a)/phys(r)/devp/prot/nttr/nttm/ntrp

noco/auto/cong/tumr, sysi/epon, injr

proc, drug(N1B)

mepr

dsrd (o, p, m, p, a, d, s), sysi/epon, spvo

proc(eval/thrp), drug(N5A/5B/5C/6A/6B/6D)