Discussion in 'Spot Diagnosis' started by Egyptian Doctor, Jan 2, 2013.
What is your medical diagnosis for this case ?
images A and B demonstrate a pair of hands that are - narrow, long and thin skinned, with delicate tapering fingers. These features are called Eunuchoidal hand / Arachnodactyly and is seen in Marfan's syndrome, homocystinuria, hypogonadism, hyperthyroidism.
Please note - it is also seen in normal individuals.
The sign demonstrated in Image A is - Thumb sign
Normally when a fist is made over a clenched thumb, the thumb should not extend beyond the ulnar side of the hand.
Although in this case the hand is open and still the thumb easily crosses over to the ulnar side.
The sign demonstrated in Image B is - Wrist sign
In this sign, when the wrist is encircled by the thumb and little finger ( with light pressure / very little effort ), the little finger will overlap at least 1 cm.
- Marfan's syndrome
Marfans with arachnodactily
arachnodactyly and joint hypermobility--> Marfan syndrome
Answer ; Mostly Marfan syndrome
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