BACKGROUND Primary renal lymphoma(PRL)is extremely rare with an incidence of 0.7%among extranodal lymphomas.Occult renal lymphoma,which mimics medical renal disease and bilateral renal involvement,presents a diagnosti...BACKGROUND Primary renal lymphoma(PRL)is extremely rare with an incidence of 0.7%among extranodal lymphomas.Occult renal lymphoma,which mimics medical renal disease and bilateral renal involvement,presents a diagnostic challenge to nephrologists and radiologists as the clinical and radiological findings are mostly non-specific or inconclusive.Acute kidney injury(AKI)is not an uncommon finding in renal infiltration due to malignant lymphoma.However,only 14%of cases are detected before death,and the low diagnostic rate may be due to the non-specific clinical manifestations of renal involvement,with only 0.5%of these cases presenting with AKI.Moreover,PRL is difficult to diagnose based on clinical,biochemical,and radiologic features,especially,in the case of bilateral diffuse involvement.CASE SUMMARY Herein,we report a 74-year-old woman with primary diffuse large B-cell lymphoma who presented with AKI diagnosed by ultrasound-guided needle biopsy.We also report the clinicopathologic findings of 121 PRL cases reported since 1989,by conducting a literature review of published cases.CONCLUSION A timely renal biopsy provides the most expedient means of establishing the diagnosis.Thus,early identification of the disease by the clinician facilitates early diagnosis toward effective treatment.展开更多
We report here a case of an inflammatory myofibroblastic tumor in the retroperitoneum, which mimicked a germ cell tumor of the undescended testis. A 75-year-old healthy man presented with a palpable abdominal mass. On...We report here a case of an inflammatory myofibroblastic tumor in the retroperitoneum, which mimicked a germ cell tumor of the undescended testis. A 75-year-old healthy man presented with a palpable abdominal mass. On the computed tomography image, there was large, well-defined soft tissue mass in the left side of the retroperitoneum, and there was no visible left testis or seminal vesicle. After contrast enhancement, the mass appeared to be relatively homogeneous, considering its large size. With ultrasonography, it appeared as a well-defined, hypoechoic mass with intratumoral vascularity. This solid mass was surgically diagnosed as an inflammatory myofibroblastic tumor.展开更多
基金Supported by the Research Fund from Chosun University,2020,No.2020-2.
文摘BACKGROUND Primary renal lymphoma(PRL)is extremely rare with an incidence of 0.7%among extranodal lymphomas.Occult renal lymphoma,which mimics medical renal disease and bilateral renal involvement,presents a diagnostic challenge to nephrologists and radiologists as the clinical and radiological findings are mostly non-specific or inconclusive.Acute kidney injury(AKI)is not an uncommon finding in renal infiltration due to malignant lymphoma.However,only 14%of cases are detected before death,and the low diagnostic rate may be due to the non-specific clinical manifestations of renal involvement,with only 0.5%of these cases presenting with AKI.Moreover,PRL is difficult to diagnose based on clinical,biochemical,and radiologic features,especially,in the case of bilateral diffuse involvement.CASE SUMMARY Herein,we report a 74-year-old woman with primary diffuse large B-cell lymphoma who presented with AKI diagnosed by ultrasound-guided needle biopsy.We also report the clinicopathologic findings of 121 PRL cases reported since 1989,by conducting a literature review of published cases.CONCLUSION A timely renal biopsy provides the most expedient means of establishing the diagnosis.Thus,early identification of the disease by the clinician facilitates early diagnosis toward effective treatment.
文摘We report here a case of an inflammatory myofibroblastic tumor in the retroperitoneum, which mimicked a germ cell tumor of the undescended testis. A 75-year-old healthy man presented with a palpable abdominal mass. On the computed tomography image, there was large, well-defined soft tissue mass in the left side of the retroperitoneum, and there was no visible left testis or seminal vesicle. After contrast enhancement, the mass appeared to be relatively homogeneous, considering its large size. With ultrasonography, it appeared as a well-defined, hypoechoic mass with intratumoral vascularity. This solid mass was surgically diagnosed as an inflammatory myofibroblastic tumor.
