Elsevier

Clinical Imaging

Volume 17, Issue 3, July–September 1993, Pages 171-175
Clinical Imaging

Original article
Intraocular hemorrhage and mimicking lesions: Role of gradient echo and contrast-enhanced MRI

https://doi.org/10.1016/0899-7071(93)90103-TGet rights and content

Abstract

Intraocular hemorrhage and mimicking lesions on precontrast spin-echo magnetic resonance images were examined with contrast material and/or gradientecho pulse sequence. Twenty-two melanomas, nine retinoblastomas, four hemorrhages, one metastasis, and one toxocara endophthalmitis were examined. With contrast material, all tumors demonstrated enhancement, whereas hemorrhage did not. Retinoblastomas demonstrated a heterogeneous enhancement pattern. Computed tomography demonstrated corresponding intratumoral calcifications at the areas of no enhancement. Gradient-echo images demonstrated a heterogeneous pattern in the majority of the lesions compared to spin-echo images. However, relatively characteristic small round areas of signal drop-off representing calcification were observed in about half of the retinoblastomas.

References (13)

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