Melanosis of Right Eyeball

Luxation of the eyeball.

Luxation of the eyeball in two African patients is reported for its rarity. It followed minor trauma to the face and was reduced in both cases without permanent visual disability.

On Melanosis

MR of neurocutaneous melanosis.

PURPOSE To describe the MR findings of neurocutaneous melanosis in the brain and correlate these with the known pathology and proposed embryologic basis of this disorder. METHODS The brain (seven patients) and spine (three patients) MR scans of seven patients with neurocutaneous melanosis were retrospectively reviewed. In two patients, findings were confirmed at surgery. The pattern of centra...

Torsional motions of the eyeball.

OF the many attempts which have been made in the past to record motions of the eyeball, the most successful investigations have used the corneal reflex method (Lord and Wright, 1948), photographic recording ofthe motions of a beam of light reflected from a plane mirror worked on a contact lens (Ratliff and Riggs, 1950; Ditchburn and Ginsborg, 1953), or photographic recording of the motion of th...

Melanosis coli.

n engl j med 368;24 nejm.org june 13, 2013 2303 A 50-year-old woman underwent colonoscopy for rectal bleeding. Her entire colon appeared dark brown and black, a finding consistent with the diagnosis of melanosis coli (Panel A). Random biopsy specimens from the descending colon revealed sheets and clusters of macrophages laden with brownish pigment in the lamina propria (Panel B, arrow). A tiny,...