<unk> s are often characterized by a mass under the skin accompanied with sensory deficit in the same area or a painful sensation. There is often loss of motor function in the hand as well. These lipomas are almost exclusively found in people under 30 years old. The mass is made of fibro-fatty tissue that begins encroaches on a nerve. Surgery is often needed to relieve pressure. Some common nerves that are affected are the median, ulnar, radial, perineal, and brachial plexus. Macrodactyly occurs in around two thirds of cases. Taking a biopsy of the mass is not necessary because these are distinct enough to make a confident diagnosis only from the use of medical imaging, like an MRI. However, if a biopsy is taken, it will show an abundance of mature fat cells surrounded by fibrous connective tissue.<unk> s are often associated with carpal tunnel syndrome, due to both of their correlation with the median nerve. To diagnose this as a<unk> , Tinel’s sign and the Phalen maneuver are used to show signs of nerve sensitivity and distress on the median nerve. This, alongside imaging, can accurately diagnose these rare growths.
Neural fibrolipoma
Hamartoma
Ganglion cyst
Keratin implantation cyst
Aggressive angiomyxoma
Littoral cell angioma
Spindle cell lipoma
Malignant acrospiroma