Magnetic Resonance Imaging of Orbital Lymphangioma with and without Gadolinium Contrast Enhancement

Histopathological Study of Orbital Lymphangioma in an Infant

“…5,6 In the present case, a multilobular and cystic tumor in the orbit showed marked hyperintensity on T2-weighted MRI images, with a portion of the area hypointense. This hypointense area may indicate acute hemorrhage into the cystic space.…”

Orbital lymphangioma and its association with intracranial venous angioma

“…4,10 Orbital lymphangiomas usually present with a slowly progressive proptosis, displacement of the globe, ptosis and restriction of eye movements; rarely focal lesions may remain asymptomatic. 1,2,8,11 Spontaneous intraorbital haemorrhage may cause acute proptosis, compressive optic neuropathy and loss of vision. 4,6,8,11,12 Intracranial vascular anomalies have been reported in rare cases.…”

Orbital Lymphangioma-Case Report and Review of the literature

“…Magnetic resonance imaging also can produce images in multiple planar orientations without the reformatting required by CT. Magnetic resonance imaging has superior capabilities to CT in these respects because its image production is unrelated to conventional xray attenuation, but is dependent on electromagnetic characteristics of hydrogen nuclei 7,8 . The details of magnetic resonance are complex and have been extensively reviewed in the radiology literature.…”

“…The effect of the paramagnetic contrast agent is to decrease the T 1 relaxation time, thus increasing the signal intensity of T1-weighted images. For all the previous mentioned facts, in the study of orbital lymphangioma the MRI is the study of choice by their unequalled differentiation of hemorrhagic cysts, and its ability to detect tumor feeding vessels 8 . Current imaging methods allow non invasive diagnosis in almost all cases, however we can confirm the diagnosis by histopathology study, where we can find an unencapsulated lesion, irregular dilated lymphatic vessels that are coated in a monolayer of endothelial cells, separated by fibrous septae and dilated vascular vessels 9 .…”