thumb sign


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Related to thumb sign: croup
A finding in patients with Marfan syndrome and other inherited connective tissue disorders. The thumb sign is positive if the distal phalanx of the thumb can be opposed beyond the ulnar border of the palm

thumb sign

Protrusion of the thumb across the palm and beyond the clenched fist; seen in Marfan syndrome.
See also: sign
References in periodicals archive ?
Table 1 Feature Value Wrist and thumb sign 3 Pectus carinatum deformity 2 Hindfoot deformity 2 Plain flat foot 1 Scoliosis 1 Skin striae 1 Severe myopia 1 Mitral valve prolapse 1 Total 12
Justice Fazlur-Rehman said "The ECP has designed a policy of one man for one vote on the basis of genuine computerized national identity card, besides using thumb sign technology through NADRA.
When epiglottitis is present, a lateral neck radiography will show an enlarged epiglottis (described as the "thumb sign") and a ballooning hypopharynx.