[Orbital metastases of melanoma of the choroid. Value of imaging].
Choroidal melanoma is characterized by an unpredictable clinical course, during which metastatic disease may occur after a prolonged disease-free interval. However, metastases to orbit are quite rare; there have been only 6 reported cases in the literature. We report well documented examples of metastases to the orbit from a melanoma of the choroïd first diagnosed 8 years earlier. MR imaging is accurate in determining the exact location of lesions and their nature owing to the paramagnetic properties of melanin.
Menif
E
E
Service de Neuroradiologie, Hôpital Charles Nicolle, Rouen.
Callonnec
F
F
Lestrat
J P
JP
Thiébot
J
J
Brasseur
G
G
D000368:Aged; D002830:Choroid Neoplasms / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008545:Melanoma / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000556:secondary*; D009918:Orbital Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000556:secondary*; D014057:Tomography, X-Ray Computed
Métastases orbitaires d'un mélanome de la choroïde. Intérêt de l'imagerie.