<unk> s are well defined melanocytic hamartomas of the iris.<unk> s generally appear as dome-shaped gelatinous masses.<unk> s masses are more commonly develop on the surface of the iris, also known as iris hamartomas.<unk> s are gold-tan to brown in color, they may grow up to 2 mm in diameter and can be of different sizes on the same iris.<unk> s arise from mast cells, pigmented cells and fibroblast-like cells.  The presence of<unk> s is the most common clinical sign of Neurofibromatosis 1; ninety-three percent of cases are bilaterally affected and an average of 25<unk> s can be counted on each iris. Once iris hamartomas have developed, they remain stable throughout life.  In 80% of eyes,<unk> s may be found in the inferior quadrants of the iris and this may be related to greater sun exposure, one of the postulated factors in the development of these benign tumefactions.
Lisch nodule
Hampton's hump
Erlenmeyer flask deformity
Wormian bones
Unicameral bone cyst
Intraosseous lipoma
Supernumerary nipple
Ganglion cyst