No abstract available
MeSH terms
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Angiography
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Diagnosis, Differential
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Hamartoma / diagnosis*
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Humans
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Lymphangioma / diagnosis*
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Orbit / blood supply*
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Orbital Diseases / diagnosis*
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Orbital Neoplasms / diagnosis*
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Phlebography
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Valsalva Maneuver
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Veins / abnormalities*