MRI, medical imaging, ct scan, radiology,radiography,
May 29

History (HX):
Enlarging mass over the volar aspect of the hand and wrist  from infancy

Findings:
A large lobulated mass beginning at the carpal tunnel and extending distally at volar aspect of the hand.
Linear hypointensities are present within the mass related to nerve bundles with extensive fat interspersed between the nerve fascicles

Diagnostic (DX):
Fibrolipomatous Hamartoma of the nerve (proved)

Discussion:
There is a very rare slowly growing tumor in infants and  children. It has a characteristic appearance on MRI that is often pathogonomonic and allows a confident diagnosis without the need for biopsy

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