RESUMEN
Objective To analyze the results of diagnostic pars plana vitrectomy (PPV) in patients with uveitis of unknown cause.Methods This is a retrospective case series study.Sixty-five patients (67 eyes) with uveitis of unknown cause were enrolled in this study.There were 31 males (32 eyes) and 34 females (35 eyes).The ages were from 6 to 84 years,with the mean age of (55.00± 18.56) years.All eyes were received PPV.Examination of vitreous samples consisted of microbial stains and culture,microbial DNA and antibody detection,cytokine measurement,cytology,flow cytometry and gene rearrangement detection.Results Vitreous analysis was positive in 40 of 67 eyes (59.7％).Positive results indicated bacterial endophthalmitis in 20 of 40 eyes (50.0％),lymphoma in 11 eyes (27.5％),viral IgM and IgG increased significantly in 3 eyes (7.5％),fungal endophthalmitis in 3 eyes (7.5％),IgG of toxocara increased significantly in 2 eyes (5.0％),IgG of toxoplasma Gondii increased significantly in 1 eye (2.5％).Conclusion The diagnostic yield of vitreous samples in uveitis eyes of unknown cause is 59.7％.
RESUMEN
We describe two cases of primary thyroid lymphoma, involving 64-and 74-year-old women who presented with arapidly growing palpable mass in the anterior neck. In both patients, plain radiographs of this region re-vealedtracheal displacement and soft tissue mass, and CT scans demonstrated the presence of a large soft tis-sue masswith homogeneously low attenuation, predominantly located in the unilateral lobe of the thyroid g-land. Within themasses there was no calcification, necrosis, or hemorrhage, though in one patient the trachea was involvedposteriorly by the mass Both masses appeared as cold nodules on RI scan, and in both patients, the final diagnosiswas diffuse large cell type non-Hodgkin's lymphoma with a background of Hashimoto's thyroiditis.