Macrodystrophia lipomatosa is an exceedingly rare overgrowth of mesenchymal and fibroadipose tissue manifesting as a form of gigantism affecting one or more digits on the distal upper or lower extremities. We present a 25-year-old man who presented with overgrowth of the right hand associated with occasional pain, numbness, and limited function who was found to have macrodystrophia lipomatosa with fibrolipomatous hamartoma of the median nerve. Reports of this condition are limited in the dermatology literature, and early recognition can lead to better outcomes.
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