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Image Number 1969 (Shagreen plaque)


Diagnosis: Shagreen plaque

Site: Back

Sex: M

Age: 16


Description: Knobby skin.

Submitted by: Nameer Al-Sudany

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Differential Diagnosis


Among other cutaneous features of tuberous sclerosis, this patient had a connective tissue nevus (collagenoma) or which is more commonly known as a shagreen plaque or patch on the lumbosacral region. The lesion appeared few years after birth and presented as elevated, soft to firm skin-colored plaque several centimeters in diameter.  

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