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- Diseases & Syndromes (4/6) -
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The very high positioned axial triradius provides an explantion for the fact that in het hands of people with Patau's syndrome (trisomy 13)
or Edward's syndrome (trisomie 18), the A-line has frequently a vertical progression towards the wrist: see figure B-2b + table B-1.
The other trisomies are usually featured with a horizontal progression of the A-line: see figure B-2c.
For in these syndromes the axial triradius is usually positioned a bit lower compared to Patau's syndrome (trisomy 13) and
Edward's syndrome (trisomy 18): see figure B-1. Figuur B-3: 'phantom pictures'1 related to: Edward's syndrome (a),
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Edward's syndrome is usually featured with arch patterns on all 10 fingers (possibly combined with a radial loop on the thumb):
see figure B-3a. NOTICE: in the hands of normal people a radial loop on the thumb is very rare.
Patau's syndrome is featured by a large number of arch patterns combined with radial loops on the ringfinger and the little finger:
see figure B-3b. NOTICE: in the hands of normal people this is a very rare combination.
Warkany's syndrome is frequently featured with arches combined with whorls: see figure B-3c.
NOTICE: In the hands of normal people the combination of arches and whorls is usually observed in less than 10%.
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