The back part of the head.

A circumscribed collection of pus.

Benign tumor of the hearing nerve (eighth nerve).

Disorder marked by progressive enlargement of the head, face, hands, feet, and thorax, due to the excessive secretion of growth hormone.

A benign growth formed of glandular tissue.

Absence of the ability to recognize the form and nature of persons and things.

Loss of the power of writing due either to muscular incoordination or to an inability to phrase thought.

Loss of vision without discoverable lesion in the eye structures or optic nerve. Amaurosis fugax - temporary blindness occurring in short periods.

Absence of the menses due to causes other than pregnancy or advancing age.

Loss of memory caused by brain damage or by severe emotional trauma.