[Imaging of neuro-ophthalmological emergencies].

MRI often is mandatory in the diagnostic work-up of visual loss, visual field alterations and oculomotor problems. It is performed emergently in patients with painful diplopia associated to mydriasis, to exclude aneurysm, or in patients with painful Horner syndrome to exclude dissection of the internal carotid artery. CT scan in emergency remains useful in case of acute lateral hemianopsia or acute post traumatic visual loss.

[Amaurosis].

Amaurosis is an organic loss of visual acuity which can attain blindness and which occurs suddenly in the absence of other ophthalmological changes. It constitutes an ophthalmologic emergency requiring a careful aetiologic work-up in order to determine therapy. We will discuss various aetiologies of amaurosis and its treatment.

[Should Tolosa-Hunt syndrome still be an exclusion diagnosis?].

Since Hunt et al's description (1961) Tolosa-Hunt syndrome has been a matter of controversies about its nosological identity and differential diagnosis. We report 7 cases diagnosed between 1979 and 1990. Four of them had a low-resolution CT and the diagnosis was made after a long follow-up, according to classical criteria of exclusion.

[Benign intracranial hypertension and minocycline].

A 19 year-old woman complained of headache and nausea occurring while she was taking minocycline for acne. Examination showed bilateral papilloedema and a bilateral VIth nerve palsy. Symptoms and signs rapidly resolved after the drug was stopped.

[Results of bromocriptine treatment of giant or invasive prolactin adenomas. Apropos of 20 cases].

The therapeutic results of twenty patients with giant expansive prolactinomas were studied under bromocriptine as treatment of first intent (Group I, n = 10) or of second intent after surgery with or without radiotherapy (Group II, n = 10). Patients in Group I (PRL: 350-17 000 ng/ml) were given bromocriptine alone (10 to 20 mg/day) for a period of 21 days to 22 months. The visual fields and acuity returned to normal in 8 days to 3 months in 4 out of 7 patients and significantly improved in 2 out of 7 patients.