[Image and diagnostic value of ultrasonography and magnetic resonance in selected cases of orbital diseases]. / Obraz i wartosc diagnostyczna ultrasonografii i rezonansu magnetycznego w wybranych przypadkach chorób oczodolu

PURPOSE: To compare diagnostic efficiency of USG and MR in orbital diseases. MATERIAL AND METHODS: The clinical material comprised 25 cases of various orbital changes, mostly tumor-like, examined between January 1994 and March 1995 using USG and MR. The value of both methods was compared as well as the results of histopathological studies performed in 15 eyes. Four selected cases are presented in details. RESULTS: In most cases proper diagnosis was state basing both on USG and MR examinations. In 2 cases of USG examination and in 2 of MR misdiagnosis was state as compared with histopathological results. In small tumors and those localised in the anterior part or apex of the orbit MR gives better images. CONCLUSION: USG and MR are complementary diagnostic methods of orbital soft tissue changes, very efficient if made by an experienced examiner.

[Comparison of clinical and ultrasonographic results in eyes with silicone oil]. / Porównanie wyników badan klinicznych i ultrasonograficznych w oczach z olejem sylikonowym.

20 eyes filled with silicone oil were examined clinically and with ultrasonography. Both examinations were performed by two independent groups of investigators. The results were compared according to the extent of retinal detachment and its features. The authors discussed the reasons of differences between the two methods. The common difficulties to interpret USG pictures of silicon oil filled eyes are discussed.

[Hamartoma of the optic disc in a 17-year old boy]. / Hamartoma tarczy nerwu wzrokowego u 17-letniego chlopca.

BACKGROUND: Hamartoma of the optic disc is a rare disease but a very important one for differential diagnosis with choroidal melanoma. METHODS: A case of a boy, 17, referred to the clinic with suspicion of intrabulbar tumor is presented. Basing on the clinical picture ultrasonography and fluorescein angiography studies, diagnosis of retinal and pigment epithelium hamartoma of the optic disc was established. Laser treatment was applied. RESULTS: During 4-year follow-up visual acuity and ophthalmoscopic picture of the lesion has not deteriorated.