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f) Gonda sign – Extensor response is elicited after forceful
stretching or snapping of distal phalanx of either of the 2nd or 4th toe.
g) Brissaud’s reflex – In patients with absent toe or amputated toe
the plantar extensor response cannot be seen by observing the great toe since
such cases look for the contraction of the tensor fascia lata.
PSEUDO-BABINSKI'S SIGN
The plantar extensor response may be seen in the absence of
pyramidal tract lesions inn the following conditions
1) Voluntary withdrawal
2) In plantar hyperaesthesia
3) Strong or painful stimulus,
4) In extrapyramidal lesions
5) Release reflexes
a) Hoffman’s sign –The terminal phalanx of middle finger to be grasped by the
examiner.
The hand to be pronated. Sharp flickering movement of terminal phalanx will
produce adduction and flexion of the thumb and flexion of the other fingers
signifies pyramidal lesion.
b) Rossolimo’s Sign-Plantar surface of the Great toe is tapped with a hammer or
flick the distal phalanges of the toes into extension and then allow them to
fall back to their normal position. In pyramidal tract lesions, there will be
plantar flexion of all the other toes including the Great toe. (This is
equivalent of Hoffman’s sign of the upper limbs)
X-RAY SIGNS
The X-ray changes (in the skull) in increased intracranial tension
Widened sutures
Erosion of posterior glenoids
Silver beaten appearance,
Deep sella turcica
- Air crescent (Meniscus) sign- when an intracavitary body is surrounded by a
crescent of air.(In fungal ball aspergilloma )
- Bare area sign- is seen in pleural effusion .The peritoneal ligament prevents
ascitic fluid from extending over the entire posterior surface of the liver,
where as in pleural space, the pleural fluid may extend over the entire
posterior costophrenic recess behind the liver.
- Double bubble sign- Duodenal atresia
- Double decidual sign-in normal intrauterine pregnancy
- Golden’s sign-hilar mass with collapse.
- Hoffman Rigler’s sign-to assess the left ventricular enlargement in a lateral
film . ?he distance from the posterior aspect of the inferior vena cava to the
posterior border of the heart horizontally at a level 2 cm above the
intersection of diaphragm and inferior vena cava.
- Interface sign- is seen in pleural effusion .interface between the spleen
and the pleural fluid will be less sharp than that of between the liver spleen
and ascites.
- Nicoladoni’s or Branham’s sign- in proximal AV fistula.
- pencil in cup deformity -Psoriatic arthritis-X ray shows pencil in cup
deformity of distal inter phalangeal joints.
- Rail road calcification- Struge –Weber syndrome
- Westermark’s sign - an area of pulmonary under perfusion in acute massive
pulmonary embolism. There is focal oligemia in the embolised zone.
ANGIOGRAPHY
- Sting of beads –Segmental irregularity of medium and small sized arteries in
fibromuscular dysplasia.
PYELOGRAM-