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Query: UMLS:C0019693 (HIV)
 170,526 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

During a period of 10 years 129 immunosuppressed HIV-negative patients were evaluated for pulmonary complications. A definite diagnosis could be established in 72 cases (56%): Pneumocystis carinii pneumonia (PCP) (25), pulmonary involvement of underlying disease (10), drug toxicity (8), mycobacterioses (6), bacterial pneumonias (5), aspergillosis (5), others (13). The underlying conditions in patients with PCP were: lymphatic neoplasias (11), immunosuppression after solid organ (9) and after bone marrow transplantation (3), cytotoxic therapy for lupus erythematodes (1) and carcinoma (1). In 8 of 9 transplant patients anti-rejection therapy preceded the episode of PCP. Six patients (24%) died from respiratory failure 1 to 25 days after diagnosis of PCP, despite mechanical ventilation in four. Two patients recovered completely after mechanical ventilation for 14 and 30 days respectively. The frequency of PCP has markedly increased during the last few years: 1981-1987: 2 cases (6%), 1988: 4 (14%), 1989: 8 (42%) and 1990: 11 (26%). This can hardly be explained by improved diagnostic sensitivity or an increased number of immunosuppressed patients. Apart from the use of more potent immunosuppressive agents, the increased prevalence of Pneumocystis carinii may play an important role.
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PMID:[Pneumocystis carinii pneumonia in HIV-negative immunosuppressed patients]. 173 12

In 1973 the observation was published that in patients who had received non specific blood transfusions before kidney transplantation graft survival was improved. An immunosuppressive effect of blood transfusion was suggested. Indeed, modulation on the cellular and humoral immunologic system has been demonstrated during the last decade. But this immunomodulation effect might worsen the prognosis after cancer surgery. Whereas in several experimental studies in animals the negative influence was confirmed, clinical investigations on the other hand are contradictive. In our retrospective study we analysed the follow-up of 273 patients (158 men, 115 women; average age 66 years) on which we had performed a curative resection of their colorectal carcinoma. 182 patients had received nonspecific random blood transfusions. The survival rate for patients with blood transfusions was significantly worse in comparison to the non-transfused group (43% versus 73%, respectively). Even when we subdivided our patients into tumor stage, differentiation and localisation, the negative influence of transfused blood was confirmed. We conclude that beside the risk of transmitting hepatitis or HIV the immunosuppressive effect is a strong argument to restrict the indication for blood transfusion.
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PMID:[Effect of perioperative allogenic blood transfusion on prognosis of colorectal cancer]. 175 10

The ability of a variety of epithelial, embryonal, placental, and neuronal cells to express the CD4 antigen and to be infected by human immunodeficiency virus 1 (HIV-1) was examined. Only two (IMR-32 and HeLa-T4) expressed CD4 detectable by indirect immunofluorescence, and both were infectable by HIV-1. Two others, a human laryngeal carcinoma (HEp-2) and human colonic carcinoma (HT-29), did not express CD4 antigen but were infectable by HIV-1. Infection of the HEp-2 cells was detectable four months (and 20 serial passages) later. Infection of HEp-2 cells was not inhibited by anti CD4 monoclonal antibody but was by the lectin concanavalin A. These results suggest the presence of a receptor other than CD4 can be involved in HIV-1 infection.
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PMID:Growth of human immunodeficiency virus I in cultured cells in the absence of the CD4 antigen. 180 30

Scrofula has been called "The Dangerous Masquerader" because of its propensity to mimic other diseases. Scrofula has been mistaken for metastatic carcinoma, regional neoplasms, thyroglossal duct cysts, fungal disease, toxoplasmosis, lymphoma, osteosarcoma, chondrosarcoma, bacterial adenitis, and collagen vascular disease. Because of the enormous number of infectious and neoplastic diseases acquired by the HIV positive population, the diagnosis of scrofula may be further delayed in some patients. In these patients the early diagnosis of scrofula might allow the early identification of HIV infection and the early institution of anti-retroviral therapy. The recommended duration of anti-tuberculosis therapy is also different in HIV positive patients. Therefore, to ensure the patient of the most beneficial therapy, the physician must always consider scrofula in the differential diagnosis of a neck mass, and particularly because of the increases incidence of intrapulmonary tuberculosis in AIDS patients, he must consider the possibility of HIV infection.
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PMID:The re-emergence of scrofula with HIV infection: a review of epidemiology, pathogenesis, diagnosis and treatment. 181 95

In populations with non-HIV immunodeficiency, non-Hodgkin lymphoma and soft tissue sarcoma, especially Kaposi's sarcoma, are the most prominent tumours, but Hodgkin's disease, gastric carcinoma, squamous cell skin cancer, malignant melanoma, hepatoma, myeloid leukaemia and/or colorectal carcinoma have been linked in various studies. Population based cancer registries and cohort studies of HIV infected persons have generally failed to detect HIV related increases in total cancer incidence or in specific tumours other than non-Hodgkin lymphoma and Kaposi's sarcoma; however, associations with anal carcinoma, hepatoma and Hodgkin's disease have been suggested by some studies. Although not indicating increased risk, HIV induced immunosuppression has been linked to an acceleration of cervical and anal neoplasia and to increased aggressiveness of Hodgkin's disease with a relative excess of the mixed cellularity type. Advances in treatment for HIV infection will delay progression to AIDS and may allow an altered natural history to emerge, including the occurrence of excesses of additional cancer types.
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PMID:HIV infection and cancers other than non-Hodgkin lymphoma and Kaposi's sarcoma. 182 20

The acquired immune deficiency syndrome (AIDS) has been characterized by aggressive malignancies and infections with unusual presentations. There is a well-documented association between cervical dysplasia and the development of cervical carcinoma, and more recent evidence of an association between cervical dysplasia and HIV infection. The course of coexistent HIV infection and cervical cancer has not been well described. We report a patient with HIV infection and a stage IIIB squamous cell carcinoma of the cervix who, despite adequate treatment, had rapid disease progression as well as metastasis to an unusual iliopsoas muscle site in association with an abscess. As HIV becomes more prevalent in the female population, an increased frequency of rapidly progressive cervical carcinoma may be forthcoming. Improved life expectancy of HIV-infected patients due to modern medication is anticipated, causing a cervical neoplasm to have a more prominent effect on prognosis. Close surveillance with frequent Pap smears and colposcopies as well as aggressive management of cervical dysplasia and carcinoma in HIV-infected patients is suggested as is thorough patient counseling.
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PMID:Rapidly progressive squamous cell carcinoma of the cervix coexisting with human immunodeficiency virus infection: clinical opinion. 186 5

Most HIV-infected patients present with associated diseases (inflammations, hyperplastic disorders of the lymphatic tissue and malignancies) in the head and neck region. Speculum, endoscopy, ultrasound and computed tomography are important tools in the diagnostic management of HIV presentations. Moreover, MR is known to be an excellent technique especially in the evaluation of soft tissue disorders. -A prospective study of 23 out of 161 HIV-seropositive patients was performed to determine the efficiency of magnetic resonance imaging in HIV-related disorders. T1- and T2-sequences, as well as the contrast medium uptake (Gd-DTPA), presentation in three planes and the morphology of the tissue were useful parameters to distinguish the different HIV-related diseases (lymphatic hyperplasia, inflammation, Kaposi's sarcoma, Hodgkin's und Non-Hodgkin lymphoma, lymphoepithelial cysts and carcinoma) in most cases even prior to histological examination. -MR proved to be a significant non-invasive diagnostic tool especially in HIV-associated soft tissue disorders in the head and neck.
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PMID:[Proton spin tomography in HIV 1-induced diseases in head and neck region]. 193 Apr 94

Cytologic and histologic investigations of the uterine cervix and studies of the lymphocyte functions were performed in human immunodeficiency virus-infected and human immunodeficiency virus antibody-negative women to study possible linkages between human papillomavirus-induced dysplasia and degree of human immunodeficiency virus-induced immunosuppression. Cytologic smears of the uterine cervix of 111 human immunodeficiency virus-infected women were compared with findings in 76 female intravenous drug users negative for human immunodeficiency virus antibodies and in a group of 526 women of the outpatient population of the hospital. Cervical dysplasia-neoplasia (including five cases of invasive carcinoma) was seen in 41% of the human immunodeficiency virus-infected patients. In human immunodeficiency virus-negative intravenous drug users dysplasia-neoplasia was seen in 9%, and in the sample from outpatients in 4%, including two cases of invasive carcinoma (p less than 0.01). Cytologic features that were attributable to infection with human papillomavirus were observed in human immunodeficiency virus-infected women four times more often than in the sample from the outpatient population (p less than 0.01). Frequency and severity of dysplasia appear to increase with diminishing numbers of CD4+ helper/inducer T lymphocytes and correlated significantly (p less than 0.01) with a loss of blastogenic response to phytohemagglutinin, pokeweed mitogen, and tetanus toxoid. These results suggest an increased risk for the development of dysplasia of the uterine cervix in women with human immunodeficiency virus infection, which is related to the degree of immunosuppression.
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PMID:The increased frequency of cervical dysplasia-neoplasia in women infected with the human immunodeficiency virus is related to the degree of immunosuppression. 199 8

The immunodeficient state that evolves in persons infected with the human immunodeficiency virus (HIV) appears to increase their risk of certain types of cancer. Among these are primary lymphoma of the central nervous system, undifferentiated non-Hodgkin's lymphoma, squamous cell carcinoma, anorectal carcinoma, and cutaneous malignancies. These malignancies are similar in incidence to those seen in other immunodeficient patients. Lymphoma, in particular, is associated with a more aggressive disease state. In HIV-infected patients, the disease is usually diagnosed at a more advanced stage, frequently has extranodal involvement, and usually responds poorly to chemotherapy. Viruses, such as Epstein-Barr virus and papillomavirus, have been implicated in the pathogenesis of lymphoma and other malignancies in immunosuppressed patients, including those with HIV infection.
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PMID:Lymphoma and other HIV-associated malignancies. 219 54

Parotid gland are subdivided in malformative dysgenetic cysts and in acquired cysts. Among malformative cysts, lymphoepithelial cysts so-called branchial cysts are the most frequent. Histologically the cystic cavity is lined by squamous epithelium with various amounts of underlying lymphoid tissue. Other varieties of malformative cysts are exceptional: cystic teratomas with several sorts of adult tissues, polycystic parotid gland and congenital ductal ectasia. Acquired cysts are another important group: retention cysts are found in adult and old people. Microscopically these cysts are lined by a single or pseudostratified epithelium rested on a layer of connective tissue without any lymphoid tissue. Lymphoid cystic hyperplasia arising in HIV infection can be included in this group of acquired cysts. Finally these parotid cysts have to be differentiated from pseudocysts without an epithelial lining and from cystic tumors as cystadenolymphoma and cystic mucoepidermoid carcinoma.
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PMID:[Cysts and pseudocysts of the parotid]. 219 46


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