RESUMO
The majority of heterologous serum albumin and globulin molecules introduced into the pulmonary alveoli of dogs are absorbed into the circulatory system antigenically intact. This function of the alveoli has both physiologic and pathologic importance.
Assuntos
Absorção , Alvéolos Pulmonares/fisiologia , Soroalbumina Radioiodada/fisiologia , gama-Globulinas/fisiologia , Animais , Antígenos , Cães , Humanos , Isótopos de Iodo , Alvéolos Pulmonares/irrigação sanguínea , Circulação PulmonarRESUMO
One hundred cases of eosinophilic granuloma diagnosed by open lung biopsy were reviewed. There were 60 women and 40 men, ages 18 to over 60 years. Radiographs and clinical histories were contributed by physicians referring the cases for pathological consultation. Clinical follow-up information was obtained in 60 cases. The outcome was generally benign; the 16 asymptomatic patients remained well; 17 others had complete remission of symptoms, 22 had persistent symptoms, though half had partial improvement; 4 patients had progressive disease despite treatment, but only 1 patient died (of bilateral pneumothoraces complicating severe fibrosis). The more severe manifestations were found in young men, who had a higher incidence of pneumothorax, fibrosis and honeycombing, and diabetes insipidus. Many previously reported cases have had a less favorable outcome; milder cases of primary pulmonary histiocytosis have probably been overlooked in the past. In this series the prognostic value of histologic, clinical, or radiologic findings was limited. The diagnosis can often be strongly suggested radiologically, though infectious granulomata must be excluded; it is arguable whether exclusion of sarcoidosis is clinically important. The effectiveness of treatment with adrenal corticosteroids could not be assessed because of lack of controls; some individuals appeared to benefit, but relapse was very unusual in any case. The etiology of EG remains obscure, but in view of the paucity of patients with a history of allergy or asthma, and the lack of eosinophilia in any case, hypersensitivity seems unlikely. Smoking was far more common among these patients (97% altogether; 80% current) than in the general population (about 35%), an unexplained finding.
Assuntos
Granuloma Eosinófilo/diagnóstico , Pneumopatias/diagnóstico , Adolescente , Corticosteroides/uso terapêutico , Adulto , Fatores Etários , Biópsia , Criança , Granuloma Eosinófilo/tratamento farmacológico , Granuloma Eosinófilo/patologia , Feminino , Histiócitos/ultraestrutura , Histiocitose de Células de Langerhans/diagnóstico , Humanos , Pulmão/patologia , Pneumopatias/tratamento farmacológico , Pneumopatias/patologia , Masculino , Pessoa de Meia-Idade , FumarAssuntos
Eosinofilia Pulmonar , Adulto , Idoso , Antibacterianos/uso terapêutico , Aspergillus/patogenicidade , Asma , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prednisona/uso terapêutico , Eosinofilia Pulmonar/complicações , Eosinofilia Pulmonar/diagnóstico por imagem , Eosinofilia Pulmonar/tratamento farmacológico , Eosinofilia Pulmonar/etiologia , Eosinofilia Pulmonar/patologia , RadiografiaAssuntos
Granulomatose com Poliangiite/patologia , Adolescente , Adulto , Idoso , Arterite/patologia , Autopsia , Biópsia , Medula Óssea/patologia , Encéfalo/patologia , Criança , Feminino , Seguimentos , Granulomatose com Poliangiite/diagnóstico , Granulomatose com Poliangiite/diagnóstico por imagem , Doença de Hodgkin/diagnóstico , Humanos , Rim/patologia , Fígado/patologia , Pulmão/patologia , Linfonodos/patologia , Masculino , Pessoa de Meia-Idade , Doenças do Sistema Nervoso/diagnóstico , Neurônios , Radiografia , Fatores Sexuais , Pele/patologia , Dermatopatias/diagnóstico , Baço/patologiaAssuntos
Transtornos das Proteínas Sanguíneas/complicações , Fibrose Pulmonar/complicações , Adolescente , Adulto , Agamaglobulinemia/complicações , Idoso , Anticorpos Antinucleares , Feminino , Humanos , Hipergamaglobulinemia/complicações , Masculino , Pessoa de Meia-Idade , Fibrose Pulmonar/diagnóstico , Fibrose Pulmonar/diagnóstico por imagem , Fibrose Pulmonar/patologia , Radiografia , Fator Reumatoide , Síndrome de Sjogren/complicações , SíndromeAssuntos
Modelos Animais de Doenças , Hipertensão Pulmonar/fisiopatologia , Angiografia , Animais , Aorta/cirurgia , Tempo de Circulação Sanguínea , Velocidade do Fluxo Sanguíneo , Pressão Sanguínea , Cães , Hipertensão Pulmonar/diagnóstico por imagem , Hipertensão Pulmonar/patologia , Ligadura , Pulmão/irrigação sanguínea , Pulmão/patologia , Artéria Pulmonar/patologia , Artéria Pulmonar/cirurgia , Circulação Pulmonar , Resistência VascularAssuntos
Intoxicação por Gás/complicações , Pneumopatias/induzido quimicamente , Neoplasias Pulmonares/induzido quimicamente , Doenças Profissionais/induzido quimicamente , Adulto , Brônquios/efeitos dos fármacos , Queimaduras por Inalação/etiologia , Criança , Pré-Escolar , Cloro/intoxicação , Feminino , Parada Cardíaca/complicações , Humanos , Lactente , Recém-Nascido , Seguro de Responsabilidade Civil , Jurisprudência , Pulmão/patologia , Pneumopatias/patologia , Masculino , Pessoa de Meia-Idade , Óxido Nítrico/intoxicação , Oxigenoterapia/efeitos adversos , Paraquat/intoxicação , Fosgênio/intoxicação , Pneumoconiose/etiologia , Alvéolos Pulmonares/efeitos dos fármacos , Suicídio , Estados Unidos , UrânioRESUMO
The effects of the atomic bomb dropped on Hiroshima and Nagasaki in 1945 are described. Immediately after the bombing, Japanese civilian and military authorities mobilized an intense effort to provide help to the damaged cities and their inhabitants. At the same time, research was undertaken by the Japanese in an attempt to determine the nature of the effects of the bombs on the population. Some weeks later, the American armed services and the Manhattan District also organized an investigation of these effects. This memoir describes the early days of the American research effort, its integration with the Japanese program, and the development of a Joint Commission to study the effects of the bombing. After the first rapid survey, described in this paper, the effort was reorganized and continued under the sponsorship of the National Research Councils of America and Japan as the Atomic Bomb Casualty Commission.
Assuntos
Guerra Nuclear , História do Século XX , Humanos , Japão , Medicina Militar/história , Socorro em DesastresRESUMO
The bronchial a. are the nutrient vessels of the lung. Despite being high pressure (systemic) vessels they are of very small size compared to the pulmonary a. and their side branches are normally so minute that they are extremely difficult to visualize during in vivo studies--yet these branches also supply many important mediastinal structures including the esophagus, trachea, lymph nodes, pericardium, aorta, and mediastinal parietal pleura. The bronchial a. can react vigorously to pathological changes in the lung by hypertrophy and increased flow and their precise anatomy has become of increasing importance with the development of interventional techniques involving the systemic circulation of the lungs. In order to demonstrate the distribution and extent of these vessels we have adopted a casting technique using injections of various colors of latex to distinguish between pulmonary a. and veins, bronchial a. and veins and their connections with the pulmonary vascular bed in both normal and diseased lungs.
Assuntos
Brônquios/irrigação sanguínea , Artérias Brônquicas/anatomia & histologia , Adulto , Aorta Torácica/anatomia & histologia , Criança , Humanos , Artéria Pulmonar/anatomia & histologiaRESUMO
A retrospective study of 152 cases of lymphomatoid granulomatosis (LYG) was undertaken to expand current knowledge about clinical manifestations and therapy, and to identify prognostic indicators in this disease. The major clinical and radiographic features and extra-pulmonary sites of involvement noted in previous studies were essentially confirmed in our study. Adverse prognostic factors included neurologic manifestations, and large numbers of atypical lymphoreticular cells within the pulmonary infiltrate. Unilateral chest lesions and large numbers of small lymphocytes and histiocytes within the infiltrate were associated with a better prognosis. Malignant lymphoma involving lymph nodes developed in 12% of patients. Almost two-thirds of patients have died and the median survival was only 14 months. No particular mode of therapy was found to be satisfactory for LYG, although there was some suggestion that corticosteroids may be useful. Randomized prospective studies are necessary for definitive recommendations regarding therapy.
Assuntos
Granuloma/diagnóstico , Pneumopatias/diagnóstico , Vasculite/diagnóstico , Adolescente , Corticosteroides/uso terapêutico , Adulto , Idoso , Antineoplásicos/uso terapêutico , Criança , Feminino , Granuloma/tratamento farmacológico , Humanos , Pneumopatias/tratamento farmacológico , Doenças Linfáticas/diagnóstico , Doenças Linfáticas/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Doenças do Sistema Nervoso/diagnóstico , Prognóstico , Estudos Retrospectivos , Dermatopatias/diagnóstico , Vasculite/tratamento farmacológicoRESUMO
Anatomic and clinical observations of 28 cases, including 23 previously unpublished, of pulmonary lymphangiomyomatosis are recorded and discussed. This brings the total reported to 57. All patients were women in the reproductive age group with the major complaint of breathlessness. This was usually progressive, and death from pulmonary insufficiency resulted within 10 years. Functional changes were obstructive or restrictive, or both. Pneumothorax, chylous effusions and hemoptysis were frequent complications. Radiographically the lesions initially appear as fine, linear and nodular, predominantly basal densities, and progress to a pattern of bullous change, or honeycombing, involving all portions of the lungs not sparing the region of the costophrenic sinuses as is typical of eosinophilic granuloma. There may be associated pleural effusions. A progressively increasing lung volume is characteristic. The lesions consist of an irregular, nodular or laminar "irrational" proliferation of smooth muscle within all portions of the lung, with loss of parenchyma leading to honeycombing. Proliferated muscle can obstruct bronchioles (with air trapping and formation of bullae often complicated by pneumothorax), venules (with pulmonary hemorrhage and hemosiderosis accompanied clinically by hemoptysis) and lymphatics (with chylothorax or chyloperitoneum). Both thoracic and abdominal lymph nodes and the thoracic duct can also be involved in the myoproliferative process with formation of subsidiary minute channels and obstruction. Renal or perirenal angiomyolipomas can also occur, as exemplified by 2 patients in the present series. Identical pulmonary lesions occasionally occur in tuberous sclerosis. Especially since these patients usually have no neurologic disturbances and are almost women, the possibility of a relationship between tuberous sclerosis and lymphangiomyomatosis must be considered. One feature of note in pulmonary lesions of tuberous sclerosis is the presence of adenomatoid proliferations of epithelium. Such changes were also observed in 2 patients of the present series, and it is remarkable that both of these women had "retarded"children. At present the question of whether by lymphangiomyomatosis is a forme fruste of tuberous sclerosis must be considered as unresolved. It may yield to further investigation, possibility including chromosomal studies.
Assuntos
Pneumopatias , Doenças Linfáticas , Adolescente , Adulto , Quilotórax/etiologia , Diagnóstico Diferencial , Feminino , Hemorragia/patologia , Hemossiderose/patologia , Humanos , Nefropatias/patologia , Pulmão/patologia , Pneumopatias/complicações , Pneumopatias/diagnóstico , Pneumopatias/patologia , Doenças Linfáticas/complicações , Doenças Linfáticas/diagnóstico , Doenças Linfáticas/patologia , Sistema Linfático/patologia , Pessoa de Meia-Idade , Músculo Liso/patologia , Derrame Pleural/etiologia , Pneumotórax/etiologia , Insuficiência Respiratória/etiologia , Esclerose Tuberosa/patologiaRESUMO
Twenty patients with pulmonary nodules consisting of concentric hyaline lamellae, usually accompanied by perivascular collections of plasma cells and lymphocytes, were studied. In most instances, the lesions were multiple, bilateral, and mildly symptomatic. Many of these nodules showed all of the staining characteristics of amyloid, but others had an atypical birefringence pattern. No infectious agents were identified, and no consistent pattern of dysproteinemia was observed. Two of the patients had prior histories of tuberculosis. In other cases, the nodules were of unknown origin and pathogenesis. Four cases were complicated by sclerosing mediastinitis, and one, by retroperitoneal fibrosis and amyloidosis. Our current working hypothesis is that these lesions represent an exaggerated and, possibly, continuing immune response, perhaps to one of a number of agents.
Assuntos
Granuloma/patologia , Pneumopatias/patologia , Adulto , Idoso , Diagnóstico Diferencial , Feminino , Granuloma/diagnóstico por imagem , Granuloma/etiologia , Humanos , Pulmão/diagnóstico por imagem , Pneumopatias/diagnóstico por imagem , Pneumopatias/etiologia , Masculino , Pessoa de Meia-Idade , RadiografiaRESUMO
Twenty cases of an unusual tumor of the lung are described. This tumor usually presents with multiple small, slowly growing pulmonary nodules. Many cases are detected incidentally. Eighty percent are women, and 50% are less than 40 years of age. Survival with tumor can be quite long. However, one half the patients have died, usually of progressive pulmonary insufficiency. This is a peculiar sclerosing tumor of endothelial cell origin.