Imaging tests， including ultrasonography， computed tomography， and magnetic resonance imagery are very important and are used widely in the clinic to obtain a qualitative diagnosis and the location of ocular tumors. But these methods cannot determine the severity of malignant tumors and whether they have local or distant metastasis. Positron emission tomography/computed tomography （PET-CT） displays anatomic and metabolic abnormalities by combining the PET and CT imaging and analyzing the standard uptake value （SUV）. PET-CT has been used in the diagnosis of choroidal melanoma， orbital lymphoma， orbital rhabdomyosarcoma and adenoid cystic carcinoma of the lacrimal gland. It provides a new diagnostic tool for confirming ocular tumors and systemic metastatic tumors originating from them.
张虹,王雅梅,宋国祥. PET-CT在诊断眼部肿瘤全身转移中的价值[J]. 中华眼视光学与视觉科学杂志, 2014, 16(11): 646-649.
Zhang Hong,Wang Yamei,Song Guoxiang. The value of positron emission tomography/computed tomography in the diagnosis of ocular and metastatic tumors. Chinese Journal of Optometry Ophthalmology and Visual science, 2014, 16(11): 646-649. DOI: 10.3760/cma.j.issn.1674-845X.2014.11.002
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