avulsion of the tuberosity of the tibia occasionally occurs in youths, from violent contraction of the quadriceps—as in jumping.
By a quick movement of avulsion the tumour is then torn from its attachment.
If the nails are affected, avulsion will probably be needed before the disease can be reached.
avulsion is usually not complete and only results in a larger iridectomy than was intended.
The growth should not be cut through, as it is wiser to pluck it from its attachment by a quick movement of avulsion.
avulsion a·vul·sion (ə-vŭl'shən)
The forcible tearing away of a body part by trauma or surgery.