Morton's neuroma Morton's neuroma: A swollen inflamed nerve in the ball of
the foot, usually between the base of the second and third toes (known as the
third intermetatarsal space), caused by chronic compression of a branch of the plantar nerve between the ends of the metatarsal bones. The disorder is especially ...
Morton's syndrome Morton's syndrome: A syndrome
characterized by a shortened first metatarsal (foot) bone
that results in excessive force on the head of the second metatarsal (foot) bone
and a hypermobile first metatarsal segment. The external appearance of the foot
in Morton's syndrome is characterized by an ab...
Mosaic Mosaic: An individual or tissue containing two or
types of genetically different cells. All females are mosaics because
inactivation (lyonization). Mosaic patterns can affect how genetic
disorders are expressed. For example, about 5 percent of people with
Down's syndrome ha...