A retinopathy in young patient with co-inheritance of heterozygous alpha + -thalassemia and sickle trait: a case report.

Background: The retinopathy is an uncommon complication in individuals with sickle cell trait except for the cases of sickle cell trait associated with systemic arterial hypertension, diabetes mellitus, syphilis, tuberculosis and sarcoidosis.

Case Presentation: A retinopathy in a 16 year-old child with no history of consanguinity in the parents revealed a sickle S trait associated to heterozygous alpha thalassemia. His mother has Sickle cell anaemia (Hb SS) and his father is a carrier of heterozygous alpha-thalassemia status that it was unknown before.

[Solitary retinal astrocytic hamartoma simulating retinoblastoma].

Retinal astrocytic hamartoma and retinoblastoma may be very similar clinically and their differentiation in atypical cases can be difficult, even with the use of ultrasonography and computed tomography. In such cases, a close follow-up is recommended before enucleation. This paper reviews the case of a 18 month old girl who presented with a solitary retinal astrocytoma of the right eye, without any other physical or ocular disorder.

[Melanoma of the iris and pregnancy].

Iris melanoma is a malignant melanocytic tumor, making up 1.2%-6.6% of uveal malignant melanomas.

[Medulloepithelioma of the ciliary body. A case report].

Medulloepithelioma of the ciliary body is an uncommon intraocular tumor occurring during the first year of life. Malignant degeneration may occur. We report the case of a 4-year-old child who presented medulloepithelioma of the left eye disclosed by oesotropia at 2 years of age.

[Epidemiology of orbital processes in children. 54 cases].

Purpose: The aim of this work was to study epidemiological aspect of orbital processes occurring in childhood.

Patients And Methods: Fifty-four cases of orbital processes treated between January 1990 and January 1997 were retrospectively reviewed.

Results: Mean patient age was 4.

[Retinal vasculitis].

Purpose: The purpose of this study is to determine aetiologies of vasculitis of retina in Morocco.

Material And Methods: This is a retrospective study on 108 cases of vasculitis of retina admitted in the ophthalmology department, for a 5-year period (1987-1993). Our patients had a complete ophthalmological examination : fluorescine angiography, colour vision, general examination and biological study.

[Severe toxic optic neuropathies caused by isoniazid. Apropos of 3 cases].

Three cases of isoniazid-induced toxic optic neuropathy are reported. These severe forms of the disease lead in all cases to bilateral blindness despite drug withdrawal. The epidemiological, clinical and therapeutic aspects of the disease are discussed.