Splenic lymphangiomatosis is a very rare condition that,from 1990 to date,has been described only nine times.In the present report,we describe the first case of splenic lymphangiomatosis with rapid growth during lacta...Splenic lymphangiomatosis is a very rare condition that,from 1990 to date,has been described only nine times.In the present report,we describe the first case of splenic lymphangiomatosis with rapid growth during lactation in a 35-year-old woman.We also underline the difficultly in making an accurate preoperative diagnosis,despite more modern imaging techniques.Total splenectomy was considered to be the treatment needed,both to make a definitive diagnosis and to exclude the presence of malignancy.展开更多
Background: In Multiple Myeloma (MM) the individuation of bone lesions at baseline is mandatory because the detection of cortical damage reflects prognostic implications. Conventional Radiography (CR) shows osteolytic...Background: In Multiple Myeloma (MM) the individuation of bone lesions at baseline is mandatory because the detection of cortical damage reflects prognostic implications. Conventional Radiography (CR) shows osteolytic bone lesions only when the cortical bone damage is more than 30%. Whole-body 64-slice multidetector computed tomography (MDCT) has recently been employed for detecting early osteolytic disease. Patients and Methods: Twenty-height patients with Asymptomatic MM according to IMWG criteria underwent a 64 MDCT. Results: In our experience MDCT revealed osteolysis in 14/28 patients with normal skeletal survey and in 6 patients with normal Magnetic Resonance Imaging (MRI). Patients with radiological evidence of bone disease on MDCT were at high risk of progression with a median time to progression of 5 months (range 1 - 26 months) in comparison with patients without radiological evidence of bone disease who, conversely, showed a median time to progression of 20 months (range 8 - 40 months) (P = 0.0001). Conclusions: MDCT is able to identify MM patients with a high risk of progression, who might benefit from early therapy.展开更多
Dendritic cells （DCs） are immune cells specialized to capture, process and present antigen to T cells in order to initiate an appropriate adaptive immune response. The study of mouse DC has revealed a heterogeneous ...Dendritic cells （DCs） are immune cells specialized to capture, process and present antigen to T cells in order to initiate an appropriate adaptive immune response. The study of mouse DC has revealed a heterogeneous population of cells that differ in their development, surface phenotype and function. The study of human blood and spleen has shown the presence of two subsets of conventional DC including the CDlb/c＋ and CD141＋CLEC9A＋ conventional DC （cDC） and a plasmacytoid DC （pDC） that is CD304＋CD123＋. Studies on these subpopulations have revealed phenotypic and functional differences that are similar to those described in the mouse. In this study, the three DC subsets have been generated in vitrofrom human CD34＋ precursors in the presence of fins-like tyrosine kinase 3 ligand （FIt3L） and thrombopoietin （TPO）. The DC subsets so generated, including the CDlb/c＋ and CLEC9A＋ cDCs and CD123 ＋ pDCs, were largely similar to their blood and spleen counterparts with respect to surface phenotype, toll-like receptor and transcription factor expression, capacity to stimulate T cells, cytokine secretion and cross-presentation of antigens. This system may be utilized to study aspects of DC development and function not possible in vivo.展开更多
文摘Splenic lymphangiomatosis is a very rare condition that,from 1990 to date,has been described only nine times.In the present report,we describe the first case of splenic lymphangiomatosis with rapid growth during lactation in a 35-year-old woman.We also underline the difficultly in making an accurate preoperative diagnosis,despite more modern imaging techniques.Total splenectomy was considered to be the treatment needed,both to make a definitive diagnosis and to exclude the presence of malignancy.
文摘Background: In Multiple Myeloma (MM) the individuation of bone lesions at baseline is mandatory because the detection of cortical damage reflects prognostic implications. Conventional Radiography (CR) shows osteolytic bone lesions only when the cortical bone damage is more than 30%. Whole-body 64-slice multidetector computed tomography (MDCT) has recently been employed for detecting early osteolytic disease. Patients and Methods: Twenty-height patients with Asymptomatic MM according to IMWG criteria underwent a 64 MDCT. Results: In our experience MDCT revealed osteolysis in 14/28 patients with normal skeletal survey and in 6 patients with normal Magnetic Resonance Imaging (MRI). Patients with radiological evidence of bone disease on MDCT were at high risk of progression with a median time to progression of 5 months (range 1 - 26 months) in comparison with patients without radiological evidence of bone disease who, conversely, showed a median time to progression of 20 months (range 8 - 40 months) (P = 0.0001). Conclusions: MDCT is able to identify MM patients with a high risk of progression, who might benefit from early therapy.
文摘Dendritic cells （DCs） are immune cells specialized to capture, process and present antigen to T cells in order to initiate an appropriate adaptive immune response. The study of mouse DC has revealed a heterogeneous population of cells that differ in their development, surface phenotype and function. The study of human blood and spleen has shown the presence of two subsets of conventional DC including the CDlb/c＋ and CD141＋CLEC9A＋ conventional DC （cDC） and a plasmacytoid DC （pDC） that is CD304＋CD123＋. Studies on these subpopulations have revealed phenotypic and functional differences that are similar to those described in the mouse. In this study, the three DC subsets have been generated in vitrofrom human CD34＋ precursors in the presence of fins-like tyrosine kinase 3 ligand （FIt3L） and thrombopoietin （TPO）. The DC subsets so generated, including the CDlb/c＋ and CLEC9A＋ cDCs and CD123 ＋ pDCs, were largely similar to their blood and spleen counterparts with respect to surface phenotype, toll-like receptor and transcription factor expression, capacity to stimulate T cells, cytokine secretion and cross-presentation of antigens. This system may be utilized to study aspects of DC development and function not possible in vivo.
