Itching, flaking, or crusting of the scalp may be caused by: 1  Cradle cap, an oily, yellow crusting on a baby's scalp. 2  Dandruff, a shedding of the skin on the scalp that leaves white flakes on the head, neck, and shoulders. 3  Head lice, tiny wingless insects that cause itching and raw patches on the scalp. Head lice are most common in school-age children. Ringworm, a fungal infection of the outer layer of the scalp and in the hair. It usually causes a rash made up of circular patches with raised, red edges that resemble worms.
heteronymous hemianopia. Also found in: Dictionary, Thesaurus. Related to heteronymous hemianopia: bitemporal hemianopsia. hetÂ·erÂ·onÂ·yÂ·mous hemÂ·iÂ·anÂ·oÂ·piÂ·a. attitudinal hemianopia involving the upper field of one eye and the lower field of the other; or a binasal or bitemporal hemianopia.
Only the awareness of the world on that side is lost. Finally, visual hallucinations are common with homonymous hemianopia, especially if it develops suddenly as it would from a stroke. These hallucinations may be âunformedâ â lights, shapes, geometric figures â or âformedâ, meaning an image of a recognizable object.maging of the brain by MRI is the diagnostic test most commonly used to diagnose the location and cause of the brain injury. Prognosis Recovery of a homonymous hemianopia depends on the underlying cause and the severity of the injury to the occipital lobe.