Compartment Syndrome of All Extremities in the Setting of COVID-19-Induced Systemic Capillary Leak Syndrome With Superimposed Myositis.

Three years following the pandemic's emergence, COVID-19 has continued to affect much of the symptomatic population with widely varied respiratory complaints, fevers, numerous unexpected prodromal manifestations, and unknown long-term consequences. Scattered cases involving myopathies, rhabdomyolysis, and compartment syndrome have also been reported throughout the pandemic. Some similar cases have been attributed to systemic capillary leak syndrome (SCLS).

Nutrition Management for the Head and Neck Cancer Patient.

Head and neck cancer (HNC) patients often face multiple nutritional challenges before, during, and after treatment due to the close proximity of the cancer to organs that are vital for normal eating function. Common treatment-related side effects, such as dysphagia, odynophagia, dysgeusia, xerostomia, thick saliva, mucositis, nausea, and vomiting, all further impair the patient's ability to maintain adequate oral intake. Malnutrition and unintentional weight loss in HNC patients during and after treatment are associated with poorer treatment outcomes, increased morbidity and mortality, and poor quality of life, even in overweight and obese patients whose Body Mass Index (BMI) is not suggestive of malnutrition.

Assessing the Prognostic Significance of Histologic Response in Osteosarcoma: A Comparison of Outcomes on CCG-782 and INT0133-A Report From the Children's Oncology Group Bone Tumor Committee.

Background: The prognostic value of histologic response for osteosarcoma may have changed with induction chemotherapy schedules over time. We hypothesized that the increased intensity of induction therapy provided on INT0133 compared to the Children's Cancer Group study CCG-782 would diminish the impact of histologic response on the risk of events after definitive surgery.

Methods: Retrospective analysis was performed for patients aged <22 with newly diagnosed nonmetastatic osteosarcoma enrolled on CCG-782 and INT0133.

Maternal toxicity with continuous nevirapine in pregnancy: results from PACTG 1022.

Objective: To compare the safety of nelfinavir and nevirapine-based antiretroviral treatment in HIV-1-infected pregnant women.

Methods: In Pediatric AIDS Clinical Trials Group Protocol 1022, 38 antiretroviral-naive pregnant women at 10-30 weeks' gestation were randomized to nelfinavir or nevirapine with zidovudine plus lamivudine. The study was suspended because of greater than expected toxicity and changes in nevirapine prescribing information.

Dexamethasone versus prednisone and daily oral versus weekly intravenous mercaptopurine for patients with standard-risk acute lymphoblastic leukemia: a report from the Children's Cancer Group.

Conventional therapy for childhood acute lymphoblastic leukemia (ALL) includes prednisone and oral 6-mercaptopurine. Prior observations suggested potential advantages for dexamethasone over prednisone and for intravenous (IV) over oral 6-mercaptopurine, which remain to be validated. We report the results of a randomized trial of more than 1000 subjects that examined the efficacy of dexamethasone and IV 6-mercaptopurine.

Childhood cancer: patterns of protocol participation in a national survey.

Cancer is still the chief cause of death by disease in children, ages one to 14. As improved survival rates have been reported for pediatric cancer patients who are treated on controlled clinical trials, it is important to understand the national utilization of such protocols. In 1993, a survey of childhood cancer was conducted by the Commission on Cancer of the American College of Surgeons.

Epidemiology of osteosarcoma and Ewing's sarcoma in childhood: a study of 305 cases by the Children's Cancer Group.

Background: The Children's Cancer Group conducted a case-control study to determine the role of a broad range of environmental and familial factors in the etiology of Ewing's sarcoma and osteosarcoma in children. These factors included radiation exposure and, for children with osteosarcoma, parental exposure to beryllium.

Methods: The parents of 152 children with osteosarcoma and 153 children with Ewing's sarcoma were interviewed by telephone.

High dose chemotherapy with autologous peripheral blood progenitor cell transplantation in an anephric child with multiply recurrent Wilms tumor.

Purpose: An autologous peripheral blood progenitor cell (APBPC) transplant in an anephric child with multiply recurrent Wilms tumor using a conditioning regimen of high dose chemotherapy in conjunction with hemodialysis (HD) and peritoneal dialysis is described.

Patient And Methods: The child had a left nephrectomy at 9 months of age for a stage II Wilms tumor. At 6 years of age, she required a right nephrectomy because of progressive, recurrent disease unresponsive to treatment with doxorubicin, actinomycin, and vincristine.

Treatment of nonmetastatic osteosarcoma of the extremity with preoperative and postoperative chemotherapy: a report from the Children's Cancer Group.

Purpose: The specific aims of this study were to improve event-free survival (EFS) in patients with newly diagnosed nonmetastatic osteosarcoma of an extremity using the histologic response to neoadjuvant chemotherapy to determine postoperative chemotherapy; to evaluate a uniform histologic grading system that measures tumor response; and to identify patient characteristics that might influence EFS and survival.

Patients And Methods: Two hundred sixty-eight patients with nonmetastatic osteosarcoma of the extremity were entered between August 1983 and October 1986. Preoperative chemotherapy consisted of four courses of high-dose methotrexate (MTX) and one course of bleomycin, cyclophosphamide, and dactinomycin (BCD).

MR of intracranial Langerhans cell histiocytosis.

Langerhans cell histiocytosis (LCH) is a disease of children characterized by idiopathic proliferation of histiocytes in the reticuloendothelial system. Intracranial LCH involving the brain is uncommon. We present a case of LCH involving the dural venous sinuses and choroid plexus.

Disseminated nonlymphoblastic lymphoma of childhood: a Childrens Cancer Group study, CCG-552.

Purpose: To assess the efficacy of a chemotherapy-only regimen in pediatric patients with disseminated non-lymphoblastic lymphoma and acute B-cell leukemia (B-ALL).

Patients And Methods: Sixty-eight eligible patients with previously untreated disseminated non-lymphoblastic lymphoma were enrolled on a Childrens Cancer Group study. Therapy included cycles of chemotherapy, systemic and intrathecal (IT), ever 3 weeks for a total maximal duration of 57 weeks.

Two Down syndrome patients with an acquired translocation, t(8;14)(q11;q32), in early B-lineage acute lymphoblastic leukemia.

Two males with Down syndrome and acute lymphoblastic leukemia with the acquired translocation, t(8;14)(q11;q32), are described. In each case the constitutional karyotype was 47,XY,+21. The patients were, respectively, aged 3 years 11 months and 32 years, with presenting white blood counts 34 and 1.

Two additional cases of t dic(9:12) in acute lymphocytic leukemia (ALL): prognosis in ALL with dic(9:12).

We report two occurrences of dic(9;12) in acute lymphoblastic leukemia and review previous cases. Cases of dic(9;12) share common features with cases of 9p and 12p rearrangements, but prognosis seems particularly good in cases of dic(9;12). The persistence of a specific dicentric in stable clones is remarkable and points to unusual centromeric behavior and/or marked selective advantage of the anomaly.

Biphenotypic leukemic lymphocyte precursors in CD2+CD19+ acute lymphoblastic leukemia and their putative normal counterparts in human fetal hematopoietic tissues.

During detailed immunophenotypic analyses of marrow blasts from 336 acute lymphoblastic leukemia (ALL) patients, a very small percentage of cases reactive with B-cell-directed as well as T-cell-directed monoclonal antibodies (MoAbs) were identified. Five ALL cases were biphenotypic since they coexpressed CD2 (Tp50) and CD19 (Bp95) antigens at the single-cell level. The composite immunophenotype of these biphenotypic ALL cases was [TdT+HLA-ABC+CD2+CD3-CD10+CD13-CD14-CD16-CD19+CD20+ ++-CD21-CD33-CD34+Bgp95-C mu- slg-].

Immunophenotype-karyotype associations in human acute lymphoblastic leukemia.

The present study is a detailed analysis of the cytogenetic features of leukemic cells from 104 immunologically classified acute lymphoblastic leukemia (ALL) (78 B lineage and 26 T lineage) cases. Clonal chromosomal abnormalities were found in marrow blasts from 77 of 104 (74%) cases. Hyperdiploidy was much more frequent in B-lineage ALL cases, whereas normal diploidy was more common in T-lineage ALL cases.

Chest wall resection and reconstruction for malignant conditions in childhood.

This report evaluates the efficacy of extensive chest wall resection and prosthetic reconstruction in 15 children with chest wall malignancies. There were nine boys and six girls, with a mean age of 9.6 years.

Heterogeneity of cultured leukemic lymphoid progenitor cells from B cell precursor acute lymphoblastic leukemia (ALL) patients.

Colony assays were performed for 50 patients with B cell precursor acute lymphoblastic leukemia (ALL). Blast colony formation was observed for 33 patients, and the plating efficiency (PE) showed a marked interpatient variation, which indicates a pronounced biological heterogeneity at the level of leukemic progenitor cells. Notably, the mean PE of leukemic B cell precursors from patients with a pseudodiploid or near-diploid karyotype with structural chromosomal abnormalities (SCA) was significantly higher than the mean PE of normal diploid or hyperdiploid cases.

MR imaging of osteogenic and Ewing's sarcoma.

Twenty patients with biopsy-proven osteogenic (11 cases) or Ewing's (nine cases) sarcoma were evaluated by MR imaging on a 0.15-T resistive unit to determine the value of MR in the diagnosis and treatment of these two neoplasms and to develop the best protocol for MR imaging. In all 20 cases, MR identified tumor spread into bone marrow, and it was superior to CT in five cases.

Efficacy of magnetic resonance imaging in 139 children with tumors.

One hundred thirty-nine children with neoplasms were studied using magnetic resonance imaging (MRI). This procedure was as accurate as computed tomography in predicting tumor histology, except that MRI was unable to detect small areas of tumor calcification. Magnetic resonance imaging could accurately identify the organ of origin of tumor masses and differentiate soft tissue from fat, fluid, or hemorrhage.

Hodgkin disease and non-Hodgkin lymphomas in children: utilization of radiological modalities.

If costs of medical care are to be reduced, the choice of which imaging modality to use must be made as carefully as possible. This study was done to show how radiological modalities were used to evaluate patients with Hodgkin disease and non-Hodgkin lymphoma. We kept a record of every radiological study performed on 66 children with both diseases seen in the past 6 1/3 years.

Radiation nephritis following total-body irradiation and cyclophosphamide in preparation for bone marrow transplantation.

Two children prepared for bone marrow transplantation with total-body irradiation and cyclophosphamide developed hypertension, microscopic hematuria, proteinuria, diminished renal function, and anemia six months after transplantation. Light microscopy of the kidneys revealed mesangial expansion, glomerular capillary wall thickening, and lumenal thrombosis. Electron microscopy demonstrated widening of the subendothelial space due to the deposition of amorphous fluffy material.

Parent to child transmission of the thrombocytopenia absent radius (TAR) syndrome.

We report on cases of the thrombocytopenia absent radius syndrome (TAR) in a family with the first documented occurrence of parent-to-child transmission. At least three other families have been reported in which TAR has been transmitted across generations. The pattern of transmission in these cases is not consistent with the simple autosomal recessive mode of inheritance which has been proposed.

Leukaemic transformation of engrafted bone marrow cells.

Recurrent leukaemia following bone marrow transplantation is most often due to the regrowth of original host leukaemia cells, but may also be due to the malignant transformation of normal donor marrow cells after transplantation into a leukaemia patient. We report the ninth case of malignant change in cells of donor origin in a 12-year-old boy who was originally diagnosed as having Ph1+ CML. He remained Ph1+ during lymphoid blast crisis.

Sequential high-dose cytosine arabinoside-asparaginase treatment in advanced childhood leukemia.

Sequential high-dose cytosine arabinoside (ara-C) and asparaginase were given to 41 children age six months to 21 years of age with advanced leukemia. Ten of 22 patients with acute lymphocytic leukemia (ALL) and eight of 19 patients with acute nonlymphocytic leukemia (ANLL) obtained complete remissions. The most significant toxicity seen was infection in 22 patients.