| Type | MGI:General | Description | reduced occipital frontalis muscle and zygomatics unilateral or asymmetrical misplaced muscle fibers between the trapezius cervicalis and the trapezius thoracis additional muscles in the scapulohumoral region as in Fat1tm1.2Fhel homozygotes without insertion of its extremity between the spinodeltoid and the triceps brachii muscles reduced myofiber density in the cutaneous maximus and in the subcutaneous part of the spinotrapezoid muscle |
