prosop-, prosopo- +

(Greek: face)

1. A congenitally incomplete development of the face.
2. An incomplete or imperfect development of the face that is usually of prenatal beginning.
Having a noticeably broad face.
The characteristic of having a face that is low for its width.
Two-faced conjoined twins (incompletely separated identical twins).

The twins have almost complete fusion of their bodies with one set of limbs. Part or all of the face is duplicated. The condition usually results in stillbirth.

Having a disproportionately long face.
A disorder similar to erythromelalgia (burning pain in the skin), but with the pain and redness occurring in the face.
An individual displaying leptoprosopia.
An extreme narrowness of the face.
Exhibiting leptoprosopia.
macroprosopia, megaprosopia
1. A condition in which the face is too large in proportion to the size of the cranial vault.
2. An excessive size of the face.
microprosopus, microprosopia
A fetus with a small or undeveloped face.
A situation in which the face has an oval shape.
1. An inability or difficulty in recognizing familiar faces.

It may be congenital or result from injury or disease of the brain.

2. The inability to recognize familiar faces which is not explained by defective visual acuity or reduced consciousness or alertness.

Prosopagnosiacs can see a person clearly and can describe the person; for example, hair and eye color, but cannot identify the individual by name.

People with prosopagnosia may identify someone by touch, smell, speech, or the manner in which the person walks. In some rare cases, an affected individual cannot recognize his or her own face.

A disproportionate largeness of the face.
1. Bilateral facial paralysis.
2. Paralysis of one side of the face and of both lower limbs.