原发性中枢神经系统淋巴瘤（primary central nervous system lymphomas,PCNSL）是指发生于脑、脊髓、脑脊膜等处的非霍奇金恶性淋巴组织肿瘤,无系统性淋巴瘤的表现,约占颅内恶性肿瘤的3%[1],多为B细胞型。结外NK/T细胞淋巴瘤多见于面...原发性中枢神经系统淋巴瘤（primary central nervous system lymphomas,PCNSL）是指发生于脑、脊髓、脑脊膜等处的非霍奇金恶性淋巴组织肿瘤,无系统性淋巴瘤的表现,约占颅内恶性肿瘤的3%[1],多为B细胞型。结外NK/T细胞淋巴瘤多见于面部中线结构附近,而原发于中枢神经系统者较少见。展开更多
自1997年首例乳房假体相关的间变性大细胞淋巴瘤（breast implant associated—anaplastic large cell lymphoma，BIA—ALCL）被报道以来，乳房假体与间变性大细胞淋巴瘤（anaplastie large cell lymphoma，ALCL）之间的关系逐渐受到整...自1997年首例乳房假体相关的间变性大细胞淋巴瘤（breast implant associated—anaplastic large cell lymphoma，BIA—ALCL）被报道以来，乳房假体与间变性大细胞淋巴瘤（anaplastie large cell lymphoma，ALCL）之间的关系逐渐受到整形外科专家及肿瘤学家的重视。2011年，美国FDA发布通告称假体隆乳有可能导致ALCL。目前为止，已有近200病例被报道。展开更多
We report a case of two pseudolymphomas of the liver in a 63-year-old Japanese woman with primary biliary cirrhosis.One of the lesions was found incidentally during a medical examination,presenting as a 10 mm hypodens...We report a case of two pseudolymphomas of the liver in a 63-year-old Japanese woman with primary biliary cirrhosis.One of the lesions was found incidentally during a medical examination,presenting as a 10 mm hypodense nodule that revealed hyperdensity in the early phase and hypodensity in the late phase in computed tomography(CT)after injection of contrast medium.Retrospectively,the 10 mm nodule had first been discovered as a 4 mm nodule during CT 4 years previously.Superparamagnetic iron oxide-enhanced MRI revealed another 4 mm hyperintense nodule in segment 6 in addition to the 10 mm hyperintense nodule in segment 7.CT during arterial portography revealed two hypointense nodules.Findings with other imaging modalities such as ultrasonography,magnetic resonance imaging,and hepatic angiography were consistent with hepatocellular carcinoma.A right posterior segmentectomy was performed,and the lesions were microscopically diagnosed as pseudolymphoma.To the best of our knowledge,only 31 other cases of this disease have ever been reported,with a highly asymmetrical male:female ratio of 1:9.7.Although we could find only one case of transformation of hepaticpseudolymphoma into lymphoma in the liver,the exact nature of development from benign pseudolymphoma to malignant lymphoma is still not fully understood and cases of hepatic lymphoma need to be followed carefully.展开更多
文摘原发性中枢神经系统淋巴瘤（primary central nervous system lymphomas,PCNSL）是指发生于脑、脊髓、脑脊膜等处的非霍奇金恶性淋巴组织肿瘤,无系统性淋巴瘤的表现,约占颅内恶性肿瘤的3%[1],多为B细胞型。结外NK/T细胞淋巴瘤多见于面部中线结构附近,而原发于中枢神经系统者较少见。
文摘自1997年首例乳房假体相关的间变性大细胞淋巴瘤（breast implant associated—anaplastic large cell lymphoma，BIA—ALCL）被报道以来，乳房假体与间变性大细胞淋巴瘤（anaplastie large cell lymphoma，ALCL）之间的关系逐渐受到整形外科专家及肿瘤学家的重视。2011年，美国FDA发布通告称假体隆乳有可能导致ALCL。目前为止，已有近200病例被报道。
文摘We report a case of two pseudolymphomas of the liver in a 63-year-old Japanese woman with primary biliary cirrhosis.One of the lesions was found incidentally during a medical examination,presenting as a 10 mm hypodense nodule that revealed hyperdensity in the early phase and hypodensity in the late phase in computed tomography(CT)after injection of contrast medium.Retrospectively,the 10 mm nodule had first been discovered as a 4 mm nodule during CT 4 years previously.Superparamagnetic iron oxide-enhanced MRI revealed another 4 mm hyperintense nodule in segment 6 in addition to the 10 mm hyperintense nodule in segment 7.CT during arterial portography revealed two hypointense nodules.Findings with other imaging modalities such as ultrasonography,magnetic resonance imaging,and hepatic angiography were consistent with hepatocellular carcinoma.A right posterior segmentectomy was performed,and the lesions were microscopically diagnosed as pseudolymphoma.To the best of our knowledge,only 31 other cases of this disease have ever been reported,with a highly asymmetrical male:female ratio of 1:9.7.Although we could find only one case of transformation of hepaticpseudolymphoma into lymphoma in the liver,the exact nature of development from benign pseudolymphoma to malignant lymphoma is still not fully understood and cases of hepatic lymphoma need to be followed carefully.
