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September 28, 2006  Vol. 355 No. 13

Audio Summary of this Issue

Original Articles
1307-1317
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This large prospective study shows that sentinel-node biopsy can be an important part of the management of intermediate-thickness melanoma of the skin. The biopsy not only yields clinically important prognostic information but also identifies patients with nodal metastases whose survival can be prolonged by lymphadenectomy.

1318-1330

Islet transplantation is an evolving therapy that may be considered for patients with type 1 diabetes mellitus complicated by severe hypoglycemia or labile diabetes, provided all other attempts to stabilize glycemic control have been exhausted. This multicenter trial confirms that islet transplantation using the Edmonton protocol can successfully restore long-term endogenous production of insulin and glycemic stability in such patients, but insulin independence is usually not sustainable.

1331-1338

Human herpesvirus 8 (HHV-8) is the cause of Kaposi's sarcoma, the most frequent AIDS-associated cancer. In this study of recipients of blood transfusions in Uganda, receipt of an HHV-8–seropositive blood product, as compared with a seronegative blood product, was associated with a 2.8% excess risk of seroconversion to HHV-8.

Review Articles
1339-1344
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This article introduces a series of reports on medical education. It outlines the main areas of success and the problems that have arisen since the Flexner report was issued.

1345-1356

    The tuberous sclerosis complex (TSC), a multisystem, autosomal dominant disorder affecting children and adults, results from mutations in one of two genes, TSC1 (encoding hamartin) or TSC2 (encoding tuberin). In this article, the current knowledge of the pathogenesis of the disease and its management are discussed.

    Videos in Clinical Medicine
    e12

      Lumbar puncture is indicated for both diagnostic and therapeutic reasons. Knowledge of the contraindications, the pertinent anatomy, and the methods to minimize the risk of complications is necessary for the safe and efficient performance of lumbar puncture. This procedure video demonstrates how to perform a lumbar puncture.

      Images in Clinical Medicine
      1357
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      A 42-year-old woman with metastatic melanoma presented with a 1-month history of dyspnea and wheezing. The diagnosis of malignant melanoma had been made 6 years earlier on the basis of a biopsy of an enlarging mole on her left foot. The melanoma was 8.5 ...

      e13
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      This woman had a verrucous nodule on the sole of her foot that had been treated as a plantar wart for 2 years. Histopathological examination showed an amelanotic malignant melanoma.

      Case Records of the Massachusetts General Hospital
      1358-1368

      A 41-year-old man was admitted to the hospital because of lymphadenopathy, fatigue, and fever, which had worsened during the previous 6 months, with weight loss and a recent onset of cough and dyspnea. He had had multiple sexual partners since a divorce 4 years earlier; there was no recent travel or exposure to ill persons. Evaluation disclosed cervical, axillary, and abdominal lymphadenopathy, hepatosplenomegaly, anemia, and thrombocytopenia. A diagnostic procedure was performed.

      Editorials
      1370-1371

        In this issue of the Journal, Morton and colleagues report the largest and most important trial of sentinel-lymph-node biopsy for melanoma conducted to date.1 In the trial, 1269 patients with intermediate-thickness (1.2 to 3.5 mm) melanoma were randomly ...

        1372-1374

          Nearly 80 years after the first clinical use of insulin, many important advances in the treatment of type 1 diabetes mellitus continue to be made. In this issue of the Journal, Shapiro et al.1 report on a multinational, prospective trial to disseminate ...

          1374-1375
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          Earlier this year, I learned that my high school chemistry teacher had died. This was not surprising, since he had been my teacher in 1961. What was rather astounding was the outpouring of appreciation from his former students that followed. All of us ...

          1375-1376
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          Providing the “right” physician for the health care of the future will require substantial changes in the way doctors are educated. This view was voiced in a report from the Institute of Medicine's Committee on the Roles of Academic Health Centers in the ...

          Health Law, Ethics, and Human Rights
          1377-1382

          The author describes the U.S. military's practice of force-feeding prisoners on hunger strikes at Guantanamo Bay. He discusses the controversy surrounding this practice and the ethical issues facing physicians involved in the force-feeding of prisoners.

          Clinical Implications of Basic Research
          1383-1385

          A gene that mediates lytic infection by the human herpesvirus (i.e., HHV-8) may be critical to tumorigenesis.

          Correspondence
          1386-1388

          To the Editor: In the study by Cunningham et al. (July 6 issue),1 the effect of down-staging of tumor is unclear. At surgery, there were more patients with advanced disease according to tumor stage and nodal status in the surgery group than in the ...

          1388-1389

          To the Editor: The inverse relationship between the frequency of condom use and the incidence of human papillomavirus (HPV) infection, reported by Winer et al. (June 22 issue),1 may be due to variation in the prevalence of HPV infection among sex ...

          1390-1391

          To the Editor: McMahon et al. (June 29 issue)1 report that lowering plasma homocysteine concentrations by means of treatment with B vitamins did not improve the cognitive performance of healthy elderly volunteers with elevated homocysteine ...

          1392-1395

          To the Editor: Graham et al. (June 15 issue)1 report that serum levels of retinol-binding protein 4 (RBP4) correlated with the magnitude of insulin resistance in various subjects. However, RBP4 and plasma insulin levels were dissociated in subjects who ...

          1395-1396

          To the Editor: The review of melanoma by Miller and Mihm (July 6 issue)1 clearly characterizes the linear progression of melanocytic lesions, from the morphologic perspective to the molecular perspective.2,3 However, the genetic alterations would have ...

          1396-1397

          To the Editor: Vivas et al. (June 8 issue)1 describe a patient with refractory celiac disease who had a response to treatment with alemtuzumab. It is not clear whether the percentage of aberrant intraepithelial lymphocytes decreased while the patient was ...

          1397-1399

          To the Editor: A 52-year-old man with a 36-year history of type 1 diabetes mellitus complicated by hypoglycemia unawareness received two intrahepatic islet-cell allografts. The glycated hemoglobin value before transplantation was 9.3%. He received 400,...

          Book Reviews
          1400
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          In the almost 40 years since the first successful bone marrow transplantation was performed, many books have been written about the process, its ethical and moral issues, and the reflections of patients and donors. Why, then, is Robert Seder's To the ...

          1401-1402

          The associations of Tay–Sachs disease with ethnicity and of cystic fibrosis and sickle cell disease with race have been mined before, as the extensive references in this book testify. The authors are particularly interested in the role of ethnicity and ...

          1402

          Kendig's Disorders of the Respiratory Tract in Children was originally published nearly 40 years ago and is now in its seventh edition. In their preface, the editors refer to it as “the bible” of pediatric pulmonology. Although improving on the “bible” ...

          1403

          Pediatric nephrologist Ron Hogg has gathered contributors from the international community of pediatric nephrology — some of whom have been instrumental in the development of this subspecialty — to examine the field in the context of recent clinical ...

          Perspective
          1297-1300

          In August, pharmacies began selling a cheaper, generic version of the blockbuster antiplatelet agent Plavix (clopidogrel). Dr. Miriam Shuchman explains why this was good news for patients but to those who produce and market the drug, it was a financial ...

          1300-1303
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          The power and sophistication of terrorist bombings have increased dramatically, but America's emergency and trauma care system has deteriorated to an alarming degree. Dr. Arthur Kellermann writes that strengthening disaster response is a key priority.

          1303-1305

          An emerging agent can threaten the safety of the blood supply. Drs. Morris Blajchman and Eleftherios Vamvakas write that the risk of transfusion-transmitted infection is not static, as new agents continue to emerge and old ones change their properties and ...

          e14

          Dr. Elliott Fisher and Karen Davis discuss the pay-for-performance concept and its usefulness in the Medicare system