1/63. Successfully treated central nervous system Burkitt's lymphoma with minimal extraneural disease in a child.Burkitt's lymphoma, the most common childhood non-Hodgkin's lymphoma, usually presents with abdominal tumors. central nervous system (CNS) involvement in Burkitt's lymphoma is mostly secondary to advanced systemic disease, rarely with brain parenchymal lesions, and was previously recalcitrant to treatment. We report an unusual case of CNS Burkitt's lymphoma with minimal extraneural disease. This 10-year-old immunocompetent boy presented with increased intracranial pressure and seizures and was found to have multifocal intracerebral lesions on brain imaging studies. cerebrospinal fluid studies confirmed the presence of Burkitt's lymphoma cells. Abdominal computed tomography showed bilateral nephromegaly with left intrarenal lesions that disappeared after three doses of intravenous dexamethasone. The patient was treated for 6.5 months according to the LMB 89 group C protocol of the French Pediatric Oncology Society. The response was brisk and complete. The patient has been disease free for more than 4 years, and is believed to be cured.- - - - - - - - - - ranking = 1keywords = central nervous system, nervous system (Clic here for more details about this article) |
2/63. De novo CD5 burkitt lymphoma/leukemia.CD5 is a T-cell marker aberrantly expressed in B-cell chronic lymphocytic leukemia and mantle cell lymphoma. Other B-cell neoplasms, including burkitt lymphoma, are usually CD5-. We report 4 cases of de novo CD5 burkitt lymphoma/leukemia in elderly patients, all of whom were in a leukemic phase and had variable lymph node and splenic involvement. The blasts were typically medium sized, with folded nuclei, distinct but not prominent nucleoli, and moderate amounts of somewhat vacuolated basophilic cytoplasm; they were terminal deoxynucleotidyl transferase--negative and surface immunoglobulin--positive. All 4 cases demonstrated c-myc rearrangement, but none had t(14;18), t(11;14), or cyclin d1 overexpression or rearrangement. Only 1 patient achieved complete remission after hyper-CVAD (hyperfractionated cyclophosphamide, vincristine, doxorubicin, dexamethasone) therapy. One patient responded poorly to hyper-CVAD, and 2 patients died during induction chemotherapy. These rare cases of aggressive lymphoid malignancy with CD5 positivity and molecular features associated with burkitt lymphoma/leukemia are best classified as Burkitt leukemia. However, the morphologic and immunophenotypic similarity to the blastoid variant of mantle cell lymphoma are diagnostically challenging. The diseases can be distinguished at the genetic level, since burkitt lymphoma involves the rearrangement of c-myc, and mantle cell lymphoma usually the overexpression or rearrangement of cyclin d1.- - - - - - - - - - ranking = 0.017078153927642keywords = neoplasm (Clic here for more details about this article) |
3/63. Primary central nervous system lymphoma in childhood presenting as progressive panhypopituitarism.We report a 15-year-old boy who had isolated central diabetes insipidus initially diagnosed at age 11 years. A brain magnetic resonance imaging (MRI) was normal at the time. At age 12 years, growth hormone (GH) testing was performed because of a decline in linear growth rate and demonstrated GH deficiency. After a repeat normal brain MRI, GH therapy was begun. Three years later, hormonal testing revealed prepubertal gonadotropins and low testosterone levels, free thyroxine index, and morning cortisol levels. Repeat brain MRI demonstrated a 9-mm enhancing lesion in the region of the pituitary stalk. The pathologic diagnosis was that of a high-grade malignant B-cell lymphoma, suggestive of burkitt lymphoma. growth hormone therapy has not been associated with an increased incidence of lymphoma. This report underscores the need for vigilance in follow-up brain imaging and hormonal evaluation in children with diabetes insipidus, especially those with evolving anterior hormone deficiencies.- - - - - - - - - - ranking = 0.94086977177743keywords = central nervous system, nervous system (Clic here for more details about this article) |
4/63. Ovarian non-Hodgkin's lymphoma: a clinicopathologic study of eight primary cases.Primary (localized) non-Hodgkin's lymphoma (NHL) of the ovary is rare. We studied eight cases of primary ovarian NHL to better understand the clinicopathologic and immunophenotypic features of these tumors. The patients ranged in age from 29 to 62 years (mean 47 years). Pelvic complaints were the most common symptoms; however, three of eight neoplasms were discovered incidentally. All tumors were unilateral and Ann Arbor stage I(E). The three incidental NHL were microscopic (largest 1.2 cm), whereas the grossly evident lesions ranged from 7.5 to 20 cm (mean 13.3). Each tumor was classified according to the world health organization classification as follows: diffuse large B-cell lymphoma (three cases), follicular lymphoma (two cases), burkitt lymphoma (one case), T-cell anaplastic large cell lymphoma (one case), and precursor T-lymphoblastic lymphoma (one case). Six tumors were of B-cell lineage, and two tumors were of T-cell lineage. All three diffuse large B-cell lymphomas were positive for BCL-6, two were positive for CD10, and two were positive for BCL-2. Estrogen and progesterone receptors were negative in all NHLs assessed. patients were treated by various combinations of surgery, chemotherapy, and radiotherapy. Clinical follow-up ranged from 1.3 to 11.7 years (mean 5.2) and all patients were alive without disease at last follow-up. We conclude that most patients with primary ovarian NHL present with symptoms attributable to an ovarian mass, but in a subset of patients ovarian NHL may be detected incidentally. With appropriate therapy, patients appear to have a favorable prognosis although follow-up is short for some patients in this study.- - - - - - - - - - ranking = 0.017078153927642keywords = neoplasm (Clic here for more details about this article) |
5/63. Primary burkitt lymphoma of the brain in an immunocompetent patient. Case report.Primary central nervous system (CNS) lymphoma is rare and is most often seen in immunodeficient patients. The majority of these tumors are the non-Hodgkin type and are high grade. Primary burkitt lymphoma of the CNS in immunocompetent individuals has rarely been reported. The authors treated a 49-year-old woman who presented with left-sided weakness that had lasted 1.5 months. magnetic resonance imaging revealed an oval mass in the left parietal region. with central necrosis and peripheral edema, and no attachment to the leptomeninges or ependyma. Pathological examination yielded a diagnosis of typical burkitt lymphoma. Six months postoperatively, the patient is ambulatory and has improving neurological signs. This is a typical case of primary burkitt lymphoma of the brain in an immunocompetent patient, which is a very rare event. The imaging pattern of the lesion is not typical of brain lymphomas and can result in an incorrect preoperative diagnosis of other brain tumors, such as glioblastoma multiforme. The patient's treatment and follow-up review are discussed.- - - - - - - - - - ranking = 0.23521744294436keywords = central nervous system, nervous system (Clic here for more details about this article) |
6/63. Imaging hiv/AIDS. Burkitt's lymphoma.Imaging is often vital in the diagnosis and staging of acquired immune deficiency syndrome (AIDS) patients with regard to infections and malignancies. Non-Hodgkin's lymphoma is an AIDS-defining illness and a common AIDS-related malignancy. These lymphomas are usually high-grade immunoblastic, primary central nervous system (CNS) or Burkitt's, and occasionally Hodgkin's. In europe and north america, Burkitt's lymphoma occurs vastly more often in AIDS. Images of three widely varied cases of AIDS-related Burkitt's lymphoma reflect its radiologic features.- - - - - - - - - - ranking = 0.23521744294436keywords = central nervous system, nervous system (Clic here for more details about this article) |
7/63. Burkitt's lymphoma with bilateral cavernous sinus and mediastinal involvement in a child.We report a 12-year-old boy who presented with incomplete right ophthalmoplegia, exophthalmos and headache. Initial CT and MRI revealed a mass in the right cavernous sinus. During tumour work-up, CT identified additional tumour within the mediastinum. biopsy of the mediastinal lesion identified Burkitt's lymphoma. We report on this case because radiologists and clinicians should be alerted to identify sites of primary Burkitt's lymphoma outside of the central nervous system if clinical symptoms indicate, or imaging shows, CNS lesions. Primary CNS involvement in Burkitt's lymphoma is rare.- - - - - - - - - - ranking = 0.23521744294436keywords = central nervous system, nervous system (Clic here for more details about this article) |
8/63. Lymphoma-induced polyradiculopathy in AIDS: two cases.Progressive polyradiculopathy is a rare, well-documented complication of the acquired immunodeficiency syndrome in man. It has been commonly attributed to a cytomegalovirus (CMV) infection. We report two hiv-infected patients with clinical and electrophysiological features of a unique, subacute, progressive polyradiculopathy. Post-mortem examination in case 1 disclosed an infiltration of the leptomeninges, the lumbar spinal cord, and the anterior and posterior roots by a B-cell immunoblastic lymphoma. immunochemistry for HIV1 and CMV was negative in the peripheral and the central nervous system. Case 2 showed bone-marrow involvement by a Burkitt type lymphoma. Specific chemotherapy was followed by both clinical improvement of the polyradiculopathy and complete remission on a second bone-marrow biopsy. These findings may indicate that a lymphoma must also be considered a possible cause of polyradiculopathy in AIDS.- - - - - - - - - - ranking = 0.23521744294436keywords = central nervous system, nervous system (Clic here for more details about this article) |
9/63. Myocardial involvement in a patient with Burkitt's lymphoma mimicking hypertrophic cardiomyopathy.Burkitt's lymphoma is a highly aggressive type of non-Hodgkin's lymphoma frequently associated with extranodal or abdominal manifestations. We report the case of a young woman with generalized Burkitt's lymphoma, initially presenting with signs and symptoms of central nervous system involvement. Myocardial infiltration mimicking hypertrophic cardiomyopathy was detected with electrocardiogram, echocardiography, magnetic resonance imaging, and positron emission tomographic scintigraphy with F-18 desoxy-glucose. These abnormalities resolved after high-intensity chemotherapy with a modified B-cell acute lymphoblastic leukemia (B-ALL) protocol.- - - - - - - - - - ranking = 0.23521744294436keywords = central nervous system, nervous system (Clic here for more details about this article) |
10/63. Interdisciplinary approach to abdominal Burkitt's lymphoma.Burkitt's lymphoma is a high-grade, rapidly growing B-cell neoplasm. It is recognized by its aggressive course, brief median survival, and low rates of long-term survival. The authors discuss the case of a patient who acutely presented with intraabdominal complications from a new onset of Burkitt's lymphoma. The clinical and pathological features, staging, treatment options, and survival data are reviewed. In addition, the role of surgical intervention is carefully analyzed.- - - - - - - - - - ranking = 0.017078153927642keywords = neoplasm (Clic here for more details about this article) |
| | Next -> |