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目的探讨泪腺炎性假瘤的MRI表现及其诊断价值。方法总结经手术病理或临床随访证实的12例泪腺炎性假瘤的临床及MRI资料,并复习文献资料。结果 12例泪腺炎性假瘤MRI均表现为泪腺体积增大,位于眶缘塑形生长,T1WI与脑白质呈等信号9例,稍低信号3例,T2WI表现为等信号4例,稍高信号8例,压脂T2WI均呈高信号,增强3例病变强化明显;其中2例沿眶外侧壁向后延时至眶尖处,1例在球后部分包绕眼球,2例伴有外直肌增厚,伴有眼睑肿胀4例。结论 MRI能明确显示泪腺炎性假瘤的形态、位置及其周围关系,结合炎性假瘤对糖皮质激素治疗敏感等临床特点,可明确诊断。
Objective To investigate the MRI findings and diagnostic value of lacrimal gland inflammatory pseudotumor. Methods The clinical and MRI data of 12 cases of lacrimal gland inflammatory pseudotumor confirmed by surgery, pathology and clinical follow-up were summarized and reviewed. Results The MRI findings of 12 cases of lacrimal gland inflammatory pseudotumor showed that the volume of lacrimal gland was increased and the shape of lacrimal gland was located on the rim of the orbital rim. There were 9 cases of equal signal on T1WI and 3 cases of slightly lower signal on T2WI. In 8 cases, the signal intensity of T2WI was high, and the enhancement was obvious in 3 cases. Among them, 2 cases retreated along the lateral orbital wall to the orbital apex, 1 case covered the eyeball in the posterior part of the ball, Rectus muscle thickening, accompanied by eyelid swelling in 4 cases. Conclusions MRI can clearly show the morphology, location and surrounding relationship of inflammatory pseudotumor of lacrimal gland. Combined with the clinical characteristics of inflammatory pseudotumor sensitive to glucocorticoid therapy, MRI can confirm the diagnosis.