[Isolated hypertrophy of the superior oblique muscle in Basedow disease]. / Hypertrophie isoleé du muscle oblique supérieur d'origine basedowienne.

INTRODUCTION: Proptosis is the most common feature of Graves' ophthalmopathy. We report an exceptional case of proptosis in relation with an isolated enlargement of the superior oblique muscle in Graves' ophthalmopathy. OBSERVATION: After ocular contusion a 37 years old man presented a progressive right exophthalmos. On examination there was an unilateral proptosis with dilated conjunctival vessels, without any clinical signs of inflammation and no decreased vision. Ocular movements were full. On general examination signs of hyperthyroidism were present. CT-scan showed a superior oblique muscle enlargement with enlarged superior ophthalmic vein. Cerebral angiography excluded the diagnosis of a carotid-cavernous fistula. Dosage of thyroid hormone revealed hyperthyroidism. DISCUSSION: This case has a double interest: --Diagnostic: a CT-scan picture mimicking a carotido-cavernous fistula in this particular clinical context (history of ocular trauma, enlarged conjunctival vessels). --Isolated enlargement of superior oblique muscle in Graves' disease, which is exceptional in the literature.

[Ocular relapse of acute lymphoblastic leukemia]. / Rechute oculaire de leucemie aigue lymphoblastique.

A bilateral leukemic hypopyon can be inaugural in the child's leukemia or reveal a relapse. A five years old child with acute lymphoblastic leukemia presented after 30 months of treatment a bilateral hypopyon. Anterior chamber paracentesis with cytological survey revealed leukemic cells and confirmed the ocular relapse. The treatment included the association of topical corticosteroids, chemotherapy and radiotherapy. This child died unfortunately 16 months later following a medullar relapse. We remind the different clinical aspects of leukemic invasion of the anterior segment and the therapeutic methods for this relapse.