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1.
BMC Cancer ; 16: 620, 2016 08 09.
Artigo em Inglês | MEDLINE | ID: mdl-27506811

RESUMO

BACKGROUND: Current evidence indicates sub-optimal incidence of fertility preservation (FP) in eligible patients. We present herein our designated multidisciplinary program for FP in pediatric and adolescent population and present our data on FP in female patients. METHODS: Pediatric patients (age 0-18) who were candidate for highly gonadotoxic treatments were referred to FP program for a multidisciplinary discussion and gonadal risk-assessment followed by either oocyte cryopreservation or ovarian cryopreservation (OCP) for female patients, and sperm banking for male patients. The OCP protocol consists of aspiration of oocytes from small antral follicles and in-vitro maturation followed by cryopreservation, as well as ovarian tissue cryopreservation. RESULTS: The establishment of a designated FP program resulted in a significant increase in referral and subsequent FP procedures of all eligible patients. Sixty-two female patients were referred for FP discussion during a period of 36 months; 41 underwent OCP; 11 underwent oocyte cryopreservation and six were declined due to parental decision. The median age was 13.2y (range 18 months-18y). Thirty-two (51.6 %) were chemotherapy-naïve. Seventeen patients (27 %) had sarcoma, 16 patients (26 %) had acute leukemia. The mean number of mature oocytes that were eventually vitrified was significantly higher in chemotherapy-naïve patients compared with chemotherapy-exposed patients (mean 12 oocytes (1-42) versus 2 (0-7)). CONCLUSION: Multidisciplinary programs that encompass experts of all relevant fields, skilled laboratory resources and a facilitated path appear to maximize the yield. We observed a considerable higher referral rates following launching a designated program and earlier OCP in chemo-naïve patients that culminated in a better fertility preservation procedure.


Assuntos
Preservação da Fertilidade/métodos , Neoplasias , Adolescente , Antineoplásicos/efeitos adversos , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Neoplasias/complicações , Neoplasias/terapia
2.
Ann Oncol ; 26(3): 567-72, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25488687

RESUMO

BACKGROUND: To report the results of the first European prospective nonrandomized trial dedicated to pediatric synovial sarcoma. PATIENTS AND METHODS: From August 2005 to August 2012, 138 patients <21 years old with nonmetastatic synovial sarcoma were registered in 9 different countries (and 60 centers). Patients were treated with a multimodal therapy including ifosfamide-doxorubicin chemotherapy and radiotherapy, according to a risk stratification based on surgical stage, tumor size and site, and nodal involvement. RESULTS: With a median follow-up of 52.1 months (range 13.8-104.4 months), event-free survival (EFS) was 81.9% and 80.7%, and overall survival (OS) was 97.2% and 90.7%, at 3 and 5 years, respectively. The only significant prognostic variable at univariate analysis was the risk group: 3-year EFS was 91.7% for low-risk, 91.2% for intermediate-risk, and 74.4% for high-risk cases. In 24 low-risk patients (completely resected tumor ≤5 cm in size) treated with surgery alone, there were two local relapses and no metastatic recurrences. Among 67 high-risk patients (unresected, or axial tumor or nodal involvement), 66 underwent surgery after neoadjuvant chemotherapy. Response to chemotherapy was 55.2%, including 22.4% cases with complete or major partial remissions, and 32.8% with minor partial remissions. CONCLUSION: This study demonstrates that collaborative prospective studies on rare pediatric sarcomas are feasible even on a European scale, with excellent treatment compliance. The overall results of treatment were satisfactory, with higher survival rates than those previously published by pediatric groups. Nonetheless, larger, international projects are needed, based on a cooperative effort of pediatric and adult oncologists. CLINICAL TRIALS NUMBER: European Union Drug Regulating Authorities Clinical Trials No. 2005-001139-31.


Assuntos
Sarcoma Sinovial/diagnóstico , Sarcoma Sinovial/epidemiologia , Neoplasias de Tecidos Moles/diagnóstico , Neoplasias de Tecidos Moles/epidemiologia , Adolescente , Criança , Europa (Continente)/epidemiologia , Feminino , Seguimentos , Humanos , Masculino , Estudos Prospectivos , Sarcoma Sinovial/terapia , Neoplasias de Tecidos Moles/terapia
3.
Pediatr Hematol Oncol ; 24(2): 111-5, 2007 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-17454776

RESUMO

This pilot study aimed at determining serum VEGF levels (S-VEGF) at diagnosis and at restaging in children with Hodgkin lymphoma, and investigating whether this parameter provides prognostic information for remission after 2 courses of chemotherapy. PET-CT fusion was performed to assess response to treatment. Changes in S-VEGF levels were found to correlate with response to treatment for most of the children. This provides a rationale for exploring clinical interest in S-VEGF measurements in a larger group of children with Hodgkin lymphoma, and using the test for clinical trials of anti-angiogenic therapies.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Biomarcadores Tumorais/sangue , Doença de Hodgkin/sangue , Fator A de Crescimento do Endotélio Vascular/sangue , Adolescente , Criança , Pré-Escolar , Diagnóstico Diferencial , Ensaio de Imunoadsorção Enzimática , Feminino , Doença de Hodgkin/diagnóstico , Doença de Hodgkin/tratamento farmacológico , Humanos , Masculino , Estadiamento de Neoplasias/métodos , Projetos Piloto , Tomografia por Emissão de Pósitrons , Indução de Remissão , Tomografia Computadorizada por Raios X
4.
Leukemia ; 14(5): 931-4, 2000 May.
Artigo em Inglês | MEDLINE | ID: mdl-10803527

RESUMO

Transplantation using umbilical cord progenitor cells as the source of the stem cells is increasingly recognized as another form of allogeneic transplantation with curative intent. However, the different patterns of hematopoietic and immunological reconstruction have been described in very few patients. A 20-month-old boy presented with acute leukemia. He received standard AML induction and consolidation therapy, after which he underwent allogeneic transplantation using HLA-matched sibling stem cells obtained from the umbilical cord. The preparative regimen consisted of busulfan and cyclophosphamide. White cell recovery, despite concomitant use of G-CSF, was slow, reminiscent of the engraftment pattern without the use of growth factor. Erythroid recovery was best recorded using fetal cell HbF level. Platelet transfusion independence occurred on day +31. Immunologic reconstitution revealed an early NK cell recovery by 6 weeks and progressive T cell recovery until 3 months, with continued increase in counts thereafter. However, the CD4/CD8 ratio remained low even at 14 months post-transplantation. Recovery of B cells was slower until day +120. Proliferative response was within normal range on day +120. This report describes the unique engraftment pattern following umbilical cord blood transplant and emphasizes the pattern of immunological and hematological reconstitution.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Eritropoese , Transplante de Células-Tronco Hematopoéticas , Leucemia Mieloide Aguda/terapia , Antígenos CD/análise , Terapia Combinada , Sangue Fetal/citologia , Hemoglobina Fetal/análise , Hematopoese , Humanos , Imunidade Celular , Lactente , Leucemia Mieloide Aguda/sangue , Leucemia Mieloide Aguda/imunologia , Leucemia Mieloide Aguda/patologia , Ativação Linfocitária , Masculino
5.
Eur J Cancer ; 51(2): 193-201, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25471261

RESUMO

PURPOSE: Due to the extensive initial distant tumour spread in metastatic rhabdomyosarcoma, the importance of local treatment is sometimes underestimated. A retrospective study was conducted to identify the prognostic value of aggressive local treatment in paediatric metastatic rhabdomyosarcoma. PATIENTS: Patients with metastatic rhabdomyosarcoma aged 1-21 years treated in France from 1998 to 2011 according to European protocols MMT-4-89, 4-91, 98 and recent national guidelines were selected. Survival comparison were performed between patients with 'aggressive local treatment' (surgery and radiotherapy) and exclusive surgery or radiotherapy, after exclusion of patients with early progression. End-points were event-free and overall survival (OS). RESULTS: A total of 101 children, median age 9 years, with majority of primaries in unfavourable sites (73 patients, pts), T2 tumours (66 pts), alveolar subtypes (65 pts) and large tumours (>5 cm, 83 pts) received various chemotherapy regimens. On univariate and multivariate analyses, OS was better after 'aggressive local treatment' (49 pts; 44.3 ± 8%), than after exclusive surgery (10 pts; 18.8% ± 15.5%) or exclusive radiotherapy (29 pts; 16.1 ± 7.2%, P < 0.006). Moreover, OS was better in the case of surgery with complete resection (41.1 ± 10.2%) or microscopic residue (56.4 ± 14.9%) than macroscopic residue (20.0 ± 12.6%; P < 0.03). CONCLUSIONS: In this large retrospective analysis, OS appeared to be better for patients receiving 'aggressive local treatment' even after adjustment for the initial patient and tumour characteristics. Isolated debulking surgery is associated with a very poor outcome and should be avoided. Aggressive local treatment in patients with rhabdomyosarcoma, even with metastasis, should be seriously considered.


Assuntos
Rabdomiossarcoma/cirurgia , Rabdomiossarcoma/terapia , Adolescente , Quimiorradioterapia , Criança , Pré-Escolar , Terapia Combinada , Feminino , Humanos , Lactente , Estimativa de Kaplan-Meier , Masculino , Análise Multivariada , Metástase Neoplásica , Prognóstico , Estudos Retrospectivos , Rabdomiossarcoma/patologia , Resultado do Tratamento , Adulto Jovem
6.
Int J Radiat Oncol Biol Phys ; 27(2): 231-4, 1993 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-8407396

RESUMO

PURPOSE: In assessing the effectiveness of the management of metastatic spinal cord or cauda equina compression, we performed a retrospective analysis of 70 patients with this complication whom we treated from 1985 to 1989. METHODS AND MATERIALS: The most frequent primary diagnoses in our series were carcinomas of unknown origin and of the breast, lymphoproliferative disease, lung cancer, and prostatic carcinoma. We used the Findlay classification to group all patients according to their pre-therapeutic functional motor status as Grade I (24 patients or 34%), Grade II (27, or 39%) or Grade III (19 or 27%). Treatment consisted of 30-45 Gy of irradiation (using two different schedules) together with high-dose dexamethasone; in only five cases was there surgical intervention. RESULTS: We found that a powerful predictor of response to radiotherapy was the patient's neurologic status (Findlay grade) at the time of diagnosis: 66% of previously ambulatory patients remained so, whereas 30% of non-ambulatory patients and only 16% of paraplegic patients regained the ability to walk. Another important predictor of response was primary tumor histology, with the most favorable responses to radiation therapy having been observed in lymphoproliferative diseases and in breast cancer, but with some response in other radiosensitive malignancies as well. CONCLUSION: The similarity of our results to those of other centers leads us to conclude that a radiotherapeutic success ceiling of 80% may have been reached for Findlay Grade I patients with metastatic spinal cord compression. In view of this, we suggest that future therapeutic endeavour would be best directed toward early diagnosis of the condition.


Assuntos
Compressão da Medula Espinal/radioterapia , Neoplasias da Coluna Vertebral/radioterapia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Neoplasias Pulmonares , Masculino , Pessoa de Meia-Idade , Neoplasias Primárias Desconhecidas , Dosagem Radioterapêutica , Estudos Retrospectivos , Compressão da Medula Espinal/complicações , Compressão da Medula Espinal/etiologia , Neoplasias da Coluna Vertebral/complicações , Neoplasias da Coluna Vertebral/secundário
7.
J Nucl Med ; 33(9): 1699-700, 1992 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-1517847

RESUMO

Three patients with osteosarcoma of the femur developed abnormal radiopharmaceutical uptake in the bones of the contralateral leg. This uptake was not due to metastases. The histology in one patient, the form of the lesion and the disappearance of the abnormal uptake without treatment in the other two, indicated that the uptake was probably due to stress fractures. Changes in weight bearing and walking in the normal leg as a result of the osteosarcoma in the other leg could have been the cause of the stress fractures. It should be recognized that new abnormal uptake on bone scintigraphy in patients with osteosarcoma of the leg may not necessarily indicate metastasis. It may be caused by a stress fracture and disappears after rest.


Assuntos
Neoplasias Ósseas/complicações , Fêmur , Fíbula/lesões , Fraturas de Estresse/etiologia , Osteossarcoma/complicações , Fraturas da Tíbia/diagnóstico por imagem , Adulto , Criança , Feminino , Fêmur/diagnóstico por imagem , Fíbula/diagnóstico por imagem , Fraturas de Estresse/diagnóstico por imagem , Humanos , Cintilografia , Medronato de Tecnécio Tc 99m
8.
J Nucl Med ; 34(12): 2101-4, 1993 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-8254395

RESUMO

Early detection of tumor relapse in lymphoma patients is often a difficult diagnostic problem. CT, which detects a mass, often cannot differentiate between fibrosis or relapsed tumor. For this reason, we have studied the value of 67Ga scintigraphy in the diagnosis of tumor recurrence. The sensitivity of 67Ga scintigraphy in the detection of lymphoma recurrence was studied at an average interval of 8.7 mo following treatment in 32 patients who developed recurrent lymphoma. Its specificity was studied in 36 patients with no recurrence who were in continuous clinical remission. At the time of appearance of relapse, the sensitivity of whole-body 67Ga imaging was 95% and the specificity 89%. In 12 events of recurrence in 10 patients, 67Ga scintigraphy was abnormal at sites that later proved to be regions of relapse. In these patients, scintigraphy demonstrated recurrence an average of 6.8 mo before the appearance of clinical symptoms, findings on clinical examination or abnormality on CT or chest x-rays. Gallium-67 scintigraphy, which permits screening of the whole body for recurrence in a single study, was of particular value in evaluating lymphoma recurrence, since 27% of the recurrences were located exclusively in sites different from the original sites of disease. Gallium-67 scintigraphy appears to be a sensitive and specific test for restaging patients with lymphoma recurrence.


Assuntos
Radioisótopos de Gálio , Linfoma/diagnóstico por imagem , Adolescente , Adulto , Idoso , Criança , Feminino , Humanos , Linfoma/patologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Recidiva , Sensibilidade e Especificidade , Tomografia Computadorizada de Emissão de Fóton Único
9.
J Nucl Med ; 36(3): 446-50, 1995 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-7884507

RESUMO

UNLABELLED: Both Hodgkin's and non-Hodgkin's lymphoma (NHL) may involve bone. Traditionally, 99mTc-MDP bone scintigraphy has been used to detect such involvement. In recent years, 67Ga scintigraphy has shown to be useful in monitoring treatment response in lymphoma. Although 99mTc-MDP has not been found particularly useful for monitoring bone response to cancer treatment, we were interested in whether 67Ga scintigraphy and SPECT could be used to monitor bone involvement with lymphoma. METHODS: Gallium-67 and 99mTc-MDP uptake were investigated in 20 patients with lymphoma involving the bone before treatment. Gallium-67 scans were done in 16 patients for monitoring response to treatment in the bone lesions. RESULTS: Gallium-67 studies diagnosed bone lesions in 19 of the 20 patients. Technetium-99m-MDP detected bone lesions in all patients investigated. In four patients, uptake by Ga-67 was more intense than 99mTc-MDP and in another four patients 99mTc-MDP uptake was more evident. Gallium-67, however, was useful in detecting other regions of involvement in 18 of the 19 patients with soft-tissue lymphoma lesions. Gallium-67 scintigraphy also correctly monitored bone response to treatment in all but one of the 16 patients who had 67Ga scintigraphy after completing therapy. CONCLUSION: Gallium-67 uptake by lymphoma involving the bone can be used to monitor osseous response to treatment.


Assuntos
Neoplasias Ósseas/diagnóstico por imagem , Radioisótopos de Gálio , Linfoma/diagnóstico por imagem , Adolescente , Adulto , Idoso , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cintilografia
10.
Bone Marrow Transplant ; 33(12): 1257-9, 2004 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15077134

RESUMO

A 12-year-old girl presented with arthritis, myalgia, anemia and positive ANA. Subsequently, she developed recurrent episodes of pulmonary hemorrhage, thrombocytopenia, CNS abnormalities, skin ulcers and diffuse calcinosis. This was followed by secondary antiphospholipid syndrome. Despite vigorous immunosuppression, the patient became bedridden. A peripheral blood stem cell autograft was offered when she developed pulmonary hypertension and digital ischemia at the age of 16 years. The post-transplantation course was uneventful. Liquefaction of calcinosis nodules with improvement of mobility occurred gradually. She is now 24 months post-transplant with no sign of disease activity and total disappearance of calcinosis nodules.


Assuntos
Doenças Autoimunes/terapia , Calcinose/terapia , Transplante de Células-Tronco de Sangue Periférico , Anemia , Artrite , Calcinose/diagnóstico por imagem , Calcinose/etiologia , Criança , Feminino , Fibromialgia , Humanos , Cintilografia , Indução de Remissão/métodos , Transplante Autólogo
11.
Bone Marrow Transplant ; 26(11): 1221-3, 2000 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-11149735

RESUMO

A 10-year-old girl with Fanconi anemia and severe aplastic anemia underwent a haploidentical BMT from her mother due to lack of a matched family donor. T cell depletion was done by positive selection of CD34 cells with immunomagnetic beads. Due to graft rejection a second haploidentical BMT from the father was successfully undertaken. No immunosuppression was given after the transplant. Immunological reconstitution took approximately 6 months, with no GVHD or severe infections. Such a transplant, containing a large purified CD34 cell fraction with a minimal number of added T cells, should be considered as the treatment of choice for patients with Fanconi anemia if no HLA matched donor is available.


Assuntos
Transplante de Medula Óssea , Anemia de Fanconi/terapia , Antígenos CD34/imunologia , Transplante de Medula Óssea/imunologia , Transplante de Medula Óssea/métodos , Criança , Pai , Feminino , Antígenos HLA/genética , Antígenos HLA/imunologia , Haplótipos , Humanos , Separação Imunomagnética , Doadores Vivos , Depleção Linfocítica , Linfócitos T/imunologia
12.
Cancer Chemother Pharmacol ; 45(2): 177-81, 2000.
Artigo em Inglês | MEDLINE | ID: mdl-10663634

RESUMO

PURPOSE: To assess the efficacy of gemcitabine in patients with a variety of sarcomas that have failed to respond or escaped Adriamycin- and ifosfamide-based chemotherapy. PATIENTS AND METHODS: A group of 18 symptomatic heavily pretreated patients with sarcomas of bone or soft tissue received one induction course of gemcitabine at a dose of 1000 mg/m(2) per week for 7 consecutive weeks, followed by 1 week rest. Response to the induction course was assessed by interview and by repeated ancillary tests. If no progression was observed, maintenance by gemcitabine 1000 mg/m(2) per week for 3 weeks every 28 days was given until failure was clinically or radiologically evident. RESULTS: A total of 51 cycles of gemcitabine were given including 18 cycles of induction. A mean of 3.6 postinduction cycles were given to nine patients. The treatment was well tolerated by the patients. One partial response (leiomyosarcoma) and one minimal response (angiosarcoma) were observed, yielding a true objective response rate of 5.5%. An additional six patients achieved stabilization of disease (chondrosarcoma and osteosarcoma), yielding an overall progression-free rate of 44%. The median time to progression was more than 27 weeks. Clinical benefit response was observed only in those who also achieved a progression-free state. CONCLUSION: Gemcitabine was found to be effective in achieving stabilization and even a minimal response of soft tissue or bone sarcoma refractory to standard chemotherapy.


Assuntos
Antimetabólitos Antineoplásicos/uso terapêutico , Neoplasias Ósseas/tratamento farmacológico , Condrossarcoma/tratamento farmacológico , Desoxicitidina/análogos & derivados , Leiomiossarcoma/tratamento farmacológico , Osteossarcoma/tratamento farmacológico , Sarcoma/tratamento farmacológico , Neoplasias de Tecidos Moles/tratamento farmacológico , Adolescente , Adulto , Antimetabólitos Antineoplásicos/farmacologia , Neoplasias Ósseas/patologia , Condrossarcoma/patologia , Desoxicitidina/farmacologia , Desoxicitidina/uso terapêutico , Progressão da Doença , Feminino , Humanos , Leiomiossarcoma/patologia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/tratamento farmacológico , Osteossarcoma/patologia , Sarcoma/patologia , Neoplasias de Tecidos Moles/patologia , Resultado do Tratamento , Gencitabina
13.
Am J Ophthalmol ; 124(1): 105-7, 1997 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-9222241

RESUMO

PURPOSE: To report a rare case of solitary anaplastic large cell lymphoma, Ki-1+, of the eyelid. METHOD: Case report. A firm ulcerated mass of the lower eyelid in a 10-year-old boy was the initial and only sign of anaplastic large cell lymphoma. RESULTS: A local excision of the mass was performed. Histologic examination disclosed large lymphoid anaplastic cells that reacted positively for T-cell markers and CD30 antigen. CONCLUSION: A solitary eyelid mass can be an initial sign of anaplastic large cell lymphoma in children.


Assuntos
Neoplasias Palpebrais/diagnóstico , Pálpebras/patologia , Antígeno Ki-1/imunologia , Linfoma Anaplásico de Células Grandes/diagnóstico , Linfócitos T/imunologia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Biomarcadores , Biópsia por Agulha , Medula Óssea/patologia , Quimioterapia Adjuvante , Criança , Diagnóstico Diferencial , Neoplasias Palpebrais/imunologia , Neoplasias Palpebrais/terapia , Seguimentos , Humanos , Antígenos Comuns de Leucócito/imunologia , Linfoma Anaplásico de Células Grandes/imunologia , Linfoma Anaplásico de Células Grandes/terapia , Masculino , Pele/patologia , Linfócitos T/patologia , Tomografia Computadorizada por Raios X , Acuidade Visual
14.
Eur J Surg Oncol ; 26(4): 398-404, 2000 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10873363

RESUMO

AIMS: Pelvic bone sarcomas in children and young adults are rare, and associated with a poor prognosis and a high rate of local recurrence. Primary goals of treatment include prevention of local recurrence and distant metastases. A secondary goal is maintenance of quality of life by avoiding major amputative surgery. This is why internal hemipelvectomy (a limb-sparing surgery) is advocated whenever possible. The focus of our presentation is surgical issues in the context of resection and reconstruction of the pelvis in the first two decades of life. MATERIALS AND METHODS: Between January 1988 and June 1998, 27 patients were treated and operated on (follow-up time 1.5-12 years). There were 17 males and 10 females. Their age ranged between 2 and 22 years. There were 24 patients with Ewing's sarcoma (ES) and three with other bone sarcomas. In 19 patients the tumour involved the entire or part of the iliac bone (in some cases with extension to the sacrum). In five patients the tumour involved the pubis and/or ischium. In three patients the tumour involved the sacrum with some extension to the posterior iliac bone. All patients received neoadjuvant and adjuvant chemotherapy and radiotherapy with different protocols (related to the origin of referral). RESULTS: Twenty-seven patients underwent internal hemipelvectomy. According to Enneking's classification there were: type I-10; type II-one; type III-six; type IV-five (including one localized sacrectomy); type I+IV-five patients. In 15 patients some kind of reconstruction was needed and in 12 no reconstruction was done. Four wound infections occurred that were managed successfully by surgical debridement, antibiotics and local wound care. In one case removal of the 'implant' was needed. No primary or secondary amputations were performed in the series. The rate of local recurrence was 22%. Functional status at the last follow-up visit or before death, according to the AMSTS functional rating system: excellent-six; good-17; fair-three and poor-one. All patients except the one poor result maintained their walking ability during the follow-up time. CONCLUSIONS: Internal hemipelvectomy is achievable in most cases and justified for better quality of life in children, adolescents and young adults with sarcomas. Further efforts are needed to improve the reconstructive options in the pelvis.


Assuntos
Neoplasias Ósseas/cirurgia , Hemipelvectomia/métodos , Sarcoma/cirurgia , Adolescente , Adulto , Pinos Ortopédicos , Placas Ósseas , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Qualidade de Vida , Resultado do Tratamento
15.
Blood Coagul Fibrinolysis ; 12(5): 367-70, 2001 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-11505079

RESUMO

Forty-one consecutive children with acute lymphoblastic leukemia (ALL) received prophylaxis therapy with the low molecular weight heparin (LMWH) enoxaparin during L-asparaginase treatment. Enoxaparin was given every 24 h subcutaneously at a median dose of 0.84 mg/kg per day (range, 0.45-1.33 mg/kg per day) starting at the first dose of L-asparaginase until 1 week after the last dose. Molecular analysis for thrombophilic polymorphisms documented prothrombin G20210A mutation in 3/27 (11%), homozygosity for MTHFR C677T mutation in 5/27 (18.5%, and heterozygosity for factor V Leiden mutation in 5/27 (18.5%) children. There were no thrombotic events during 76 courses of L-asparaginase in 41 patients who had received enoxaparin. One patient suffered brain infarct 7 days after enoxaparin was stopped. There were no bleeding episodes. In a historical control group of 50 ALL children who had not received prophylactic enoxaparin during L-asparaginase treatment, two had thromboembolisms (one deep vein thrombosis and one pulmonary embolism). Enoxaparin is safe and seems to be effective in prevention of thromboembolism in ALL patients during L-asparaginase therapy. This study provides pilot data for a future randomized trial of the use of LMWH during ALL therapy for the prevention of asparaginase-associated thrombotic events.


Assuntos
Anticoagulantes/administração & dosagem , Antineoplásicos/administração & dosagem , Asparaginase/administração & dosagem , Enoxaparina/administração & dosagem , Leucemia-Linfoma Linfoblástico de Células Precursoras/tratamento farmacológico , Tromboembolia/prevenção & controle , Adolescente , Fatores de Coagulação Sanguínea/genética , Criança , Pré-Escolar , Análise Mutacional de DNA , Quimioterapia Combinada , Feminino , Humanos , Incidência , Lactente , Israel/epidemiologia , Masculino , Projetos Piloto , Polimorfismo Genético , Leucemia-Linfoma Linfoblástico de Células Precursoras/complicações , Leucemia-Linfoma Linfoblástico de Células Precursoras/genética , Tromboembolia/etiologia , Tromboembolia/genética , Trombofilia/tratamento farmacológico , Trombofilia/etiologia , Trombofilia/genética
16.
Am J Clin Oncol ; 21(1): 72-4, 1998 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-9499263

RESUMO

This prospective study was designed to test the activity of an ifosfamide-etoposide (VP-16) regimen on poor-risk, nonmetastatic, osteogenic sarcoma. A total of 13 patients with nonmetastatic osteogenic sarcoma with a poor histologic response to primary high-dose methotrexate-doxorubicin (Adriamycin)-cisplatinum chemotherapy received a total of six 5-day courses of ifosfamide (1,800 mg/m2) and etoposide (100 mg/m2) at three weekly intervals. The protocol was well tolerated, with only one case of transient renal failure. At present, eight patients (62%) have been in sustained complete remission with no evidence of recurrent disease for a mean follow-up of 3.4 years (range, 1.5-7.0 years). One patient is alive with lung metastases, and four have died of progressive disease. This prospective, albeit small, study confirms the efficacy of an ifosfamide-VP-16-based regimen in poor-risk, extremity, nonmetastatic osteogenic sarcoma. The demonstrated activity should spark large trials of ifosfamide-containing regimens in osteogenic sarcoma.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Ósseas/tratamento farmacológico , Osteossarcoma/tratamento farmacológico , Terapia de Salvação , Adolescente , Adulto , Criança , Intervalo Livre de Doença , Etoposídeo/administração & dosagem , Feminino , Humanos , Ifosfamida/administração & dosagem , Masculino , Estudos Prospectivos , Indução de Remissão
17.
Arch Pathol Lab Med ; 118(8): 815-8, 1994 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-8060231

RESUMO

Fibromatosis (desmoid tumor) can sometimes develop at sites of previous surgery or previous trauma, but it is very rarely detected at sites of prior irradiation. We report two cases of fibromatosis following radiotherapy for Hodgkin's disease. The fibromatoses, developing in the radiation fields, were detected at the posterior area of the neck 11 years after irradiation in one case and in the peritoneal cavity 3 years after laparotomy and irradiation in the second case. The tumors did not differ clinically or histologically from those seen in patients who did not undergo irradiation. Although rare, fibromatosis should enter the differential diagnosis of masses developing in irradiated fields in patients with treated Hodgkin's disease.


Assuntos
Fibroma/etiologia , Doença de Hodgkin/radioterapia , Lesões por Radiação , Adulto , Criança , Fibroma/diagnóstico por imagem , Fibroma/patologia , Doença de Hodgkin/patologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Lesões por Radiação/patologia , Tomografia Computadorizada por Raios X
18.
Eur J Pediatr Surg ; 11(1): 61-5, 2001 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-11370988

RESUMO

We report on a case of late relapse of hepatocellular carcinoma in a child suffering from combined hepatoblastoma and hepatocellular carcinoma, stage IV. This is a rare event, as it has been accepted that a 5-year period free of any signs of disease in children suffering from malignant hepatic tumors is sufficient to classify such patients as survivors. In our patient, recurrence of the hepatocellular carcinoma component was diagnosed more than five years after the initial diagnosis. This case illustrates the need for more prolonged follow-ups for such children.


Assuntos
Carcinoma Hepatocelular/cirurgia , Hepatoblastoma/cirurgia , Neoplasias Hepáticas/cirurgia , Recidiva Local de Neoplasia , Neoplasias Primárias Múltiplas , Carcinoma Hepatocelular/patologia , Pré-Escolar , Feminino , Humanos , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/patologia , Recidiva Local de Neoplasia/patologia , Fatores de Tempo , Tomografia Computadorizada por Raios X
19.
J Laryngol Otol ; 111(9): 852-4, 1997 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-9373552

RESUMO

Mastoiditis is a complication of otitis media characterized by suppuration and destruction of air cell septa in the mastoid and petrous pyramid. Diagnosis is made by clinical findings and computerized tomography (CT) of the temporal bone. We present a patient initially diagnosed by CT as having chronic mastoiditis who was subsequently shown to have an unusual large-cell malignant lymphoma of T cell type.


Assuntos
Paralisia Facial/etiologia , Linfoma Difuso de Grandes Células B/complicações , Linfoma de Células T/complicações , Mastoidite/etiologia , Adolescente , Diagnóstico Diferencial , Nervo Facial , Humanos , Linfoma Difuso de Grandes Células B/diagnóstico por imagem , Linfoma Difuso de Grandes Células B/patologia , Linfoma de Células T/diagnóstico por imagem , Linfoma de Células T/patologia , Masculino , Tomografia Computadorizada por Raios X
20.
J Pediatr Orthop B ; 10(1): 81-4, 2001 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-11269818

RESUMO

We present a rare case of anaplastic large cell lymphoma of the bone in the leg of a child. The patient initially presented with suspected osteomyelitis of the fibula and was treated by antibiotics without apparent success. Thereafter, an open biopsy of the lesion was performed and the correct diagnosis was established. This rare case demonstrates the difficulties that a treating physician meets in establishing the correct diagnosis in a child presenting with limping. A review of the pertinent literature is introduced.


Assuntos
Neoplasias Ósseas/diagnóstico , Marcha , Linfoma Difuso de Grandes Células B/diagnóstico , Neoplasias Ósseas/diagnóstico por imagem , Neoplasias Ósseas/patologia , Pré-Escolar , Humanos , Linfoma Difuso de Grandes Células B/diagnóstico por imagem , Linfoma Difuso de Grandes Células B/patologia , Masculino , Osteomielite/diagnóstico , Osteomielite/tratamento farmacológico , Cintilografia , Compostos Radiofarmacêuticos , Medronato de Tecnécio Tc 99m
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