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Query: UMLS:C0262471 (ENT)
 5,307 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Infection from human immunodeficiency virus (HIV) is well known for the particular host susceptibility to a variety of opportunistic infections and unusual malignant neoplasms. Although no tumor develops exclusively in concomitance with HIV infection, malignancies in these patients have different clinical behaviour, response to treatment and prognosis than the pattern observed in HIV negative hosts. Kaposi's sarcoma (EKS) and non-Hodgkin's lymphoma (NHL) are tumors per se diagnostic of AIDS in patients with HIV infection. From 1987 to 1991, 210 HIV positive patients underwent ENT examination without symptom-related selection: 128 were intravenous drug users, 50 homosexual males, 22 heterosexuals, 4 intravenous male homosexual drug users, 3 blood recipients and 3 subjects without known risk factors. Sixteen were allocated in group II, 37 in III, 9 in IV A, 2 in IV B, 31 in IV C1, 37 in IV C2, 48 in IV D and 30 in IV E. Fourteen had head and neck EKS localization. All were males, with a median age of 40 of which 11/14 were homosexuals. The concomitant involvement of skin and mucosa was the most common manifestation and the palate was the most frequently affected mucosal site. Twenty-four had NHL localized within the head and neck: 21 males and 4 females with a average age of 38, 10 intravenous drug users, 9 homosexual males, 3 heterosexuals, 1 blood recipient, 1 subject without known risk factors. Extranodal localization was the most frequent characteristic while the gums were the most commonly involved site. The main characteristics of head and neck manifestations of EKS and NHL are reported with references to literature. The majority of HIV infected patients with EKS or NHL have ENT localizations, perhaps because lymphatic tissue, a HIV target, is well represented in this area and contamination by infectious agents (such as Epstein-Barr virus and cytomegalovirus, probably involved in the pathogenesis of EKS and NHL) can easily occur in the head and neck. The otolaryngologist should be aware of the various, and sometimes misleading, characteristics of these diseases.
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PMID:[The cervicofacial manifestations of Kaposi's sarcoma and of non-Hodgkin's lymphomas in HIV-infected patients]. 141 19

Three unusual cases of oropharyngeal lympho-proliferative lesions were seen in recipients of heart and heart-lung transplants. Two caused acute upper respiratory obstruction necessitating urgent ENT intervention. All patients were receiving immunosuppressive drugs including cyclosporin. The two obstructive cases were adenotonsillar enlargement in a 6-year-old, and a tumour of the tonsil and tongue base with cervical lymph node enlargement in a 32-year-old male. Both were caused by Epstein-Barr Virus-associated lymphoproliferative disorder. The third patient, a 32-year-old female, had a presumed low grade T-cell lymphoma that regressed spontaneously. Histopathological diagnosis of these lympho-proliferative disorders after transplantation usually requires immunocytochemistry to distinguish polyclonal proliferative disorders from true lymphoma. Polyclonal lymphoproliferative disorders after transplantation do not usually require aggressive cytoreductive therapy, but respond to simple measures such as the reduction of immunosuppression.
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PMID:Unusual lymphoproliferative oropharyngeal lesions in heart and heart-lung transplant recipients. 223 May 84

IgA antibodies to Epstein-Barr virus capsid antigen (IgA anti-VCA) can be detected in sera of patients with certain types of nasopharyngeal carcinoma (NPC). IgA anti-VCA titres were determined by the indirect immunofluorescence technique. 17 control patients with benign diseases or carcinomas of the head and neck other than NPC had negative IgA anti-VCA titres less than or equal to 1:16. NPC was diagnosed histologically according to the Cologne modification of the WHO classification. Among 16 cases of untreated or recurrent NPC, a rare disease in Europe, seen over the past three years, those with undifferentiated carcinomas with and without lymphoid stroma and the non-keratinizing carcinomas with lymphoid stroma were IgA anti-VCA positive (1:32 to 1:512), whereas patients with squamous cell carcinomas were negative. In four cases the primary tumour had not been diagnosed by other ENT doctors in spite of known regional or distant metastases consisting of undifferentiated carcinomas with or without lymphoid stroma. IgA anti-VCA antibodies in the sera of these patients indicated the probable site of the primary tumour. NPC was verified by biopsy in all these cases. In 2 serologically negative patients the original diagnosis of undifferentiated NPC with lymphoid stroma had to be revised to malignant Non-Hodgkin lymphoma. In the follow-up of 6 NPC patients the trend of changes in IgA anti-VCA titres correlated with the course of the disease, but the minute tumour-related changes could be detected only when at least two previous sera of the same patient were included in every test.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Immunoglobulin A serum antibodies against the capsid antigen of Epstein-Barr virus in the differential diagnosis and follow-up of nasopharyngeal cancer]. 299 46

Nasopharyngeal carcinoma (NPC) has been linked to Epstein-Barr Virus (EBV) by seroepidemiological evidence and by the regular proof of EBV-DNA in the epithelial tumor cells. We have been able to study the serological parameters of 62 NPC patients of the local ENT-Clinic. All patients were kaukasians in contrast to a previous study by Henle et al. Our results emphasize the remarkable predominance of EBV-IgA antibodies to viral capsid antigen (VCA) and early antigen (EA) in NPC patients and prove the value of the test for the initial diagnosis of the disease. Follow-up studies with subsequent serological tests strongly suggest that this test is related to the stage of the disease. We have also found NPC-typical serological EBV-IgA titers in 3 lymphoepithelial carcinomas of the tonsil and the soft palate. Similar titers have been found in two cases of poorly differentiated carcinomas of the base of the tongue. All these tumors arise in the lymphoepithelial tissue of Waldeyer's ring. We conclude that possibly some carcinomas of Waldeyer's ring are similarly related to EBV as nasopharyngeal carcinomas are.
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PMID:[Epstein-Barr virus--a clinically relevant feature of nasopharyngeal carcinoma? (author's transl)]. 626 Oct 51

This study was aimed at the possible clinical application of two Epstein-Barr virus (EBV) immunological tests to Japanese nasopharyngeal carcinoma (NPC). One of them was serological test to measure antibody titers to EBV-associated antigens (viral capsid antigens (VCA) and virus-induced early antigens (EA)) of 42 NPC sera. The other was for the detection of EBV-associated nuclear antigens (EBNA) in 22 tumour cells of NPC. The results showed that significant elevation of antibody titers to VCA and EA which resided particularly in IgA class as well as a high incidence in the presence of EBNA were found in undifferentiated NPC. Apart from its importance in etiology, EBV serology and the EBNA test may help clinicians to establish a diagnosis of undifferentiated NPC in Japan and there is little doubt that these tests should eventually become a routine biologic test in ENT practice.
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PMID:Nasopharyngeal carcinoma in Japan--clinical evaluation of EBV serology and EBV-associated nuclear antigens test. 630 14

From 1960--1980, 452 malignant tumors of the oro- and nasopharynx were observed in the Cologne university ENT-clinic. 313 tumors of the oropharynx and 119 of the nasopharynx could be reclassified using the current classifications of upper respiratory tract tumors (WHO and Cologne modification) and of malignant lymphomas (German Kiel and Rappaport classifications). The analysis showed a different distribution of histological diagnoses in the naso- and oropharynx. Whereas the squamous cell carcinoma dominates with 57% in the oropharynx it is seldom seen (only 13%) in the nasopharynx. The non-keratinizing the undifferentiated carcinomas showed an inverse distribution in both regions. Malignant lymphomas and other types of malignant tumors occur equally frequent in the naso- and in the oropharynx. Only patients with non-keratinizing and undifferentiated carcinomas of the nasopharynx showed elevated antibody titers against Epstein-Barr virus. 7 patients with tumors of the same histological type but localization in the oropharynx had no elevated antibody titers against EBV.
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PMID:[Lymphoepithelial carcinoma of the oropharynx: incidence and differential di]. 711 92

A retrospective study, which highlights some of the aspects of nasopharyngeal carcinoma (NPC) as seen in a large hospital for 20 years in Jordan, was performed. Collected data showed that NPC accounted for one per cent of all malignant tumours during the period. The present series showed an age range from six to 89 years old with a mean of 39.5 years. There was a bimodal peak at presentation at 16 to 20 and 46 to 50 years. A high incidence of childhood NPC was also noticed (two per cent of all childhood malignant tumours). The difficulty in early diagnosis urges for better awareness of the tumour especially among general practitioners. The tumour is still detected at an advanced stage with 34 per cent metastasis most frequently to bone. The study stresses the importance of full ENT examination in cases of persistent middle ear disease, recurrent or persistent nasal symptoms or headache, or neck swelling; and routine bone scanning for all cases with NPC. There is a need for prospective studies of the causal relationship of NPC to environmental factors including Epstein-Barr (EB) virus as well as occupational and domestic hazards.
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PMID:Presentation and epidemiology of nasopharyngeal carcinoma in Jordan. 1050 54

Effects of viruses and bacterial associations are suggested to promote secondary purulent intracranial complications in ENT patients. Fundamental aspects of pathogenesis of viral neuroinfections and pathogenetic mechanisms of different conditions provoked by viral factors promoting bacterial complications are presented. Hemoculture, and cerebrospinal fluid in 24 patients with secondary purulent rhinogenic and otogenic meningitis were studied with polymerase chain reaction for enteroviruses, cytomegaloviruses, Epstein-Barr, herpes, zoster viruses. The viruses were present in the studied media in 29.4% samples.
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PMID:[Viral diseases as a predisposing factor of developing secondary oto- and rhinogenic bacterial meningitis]. 1635

Nasopharyngeal carcinoma (NPC) is the most prevalent ENT-tumour in Indonesia. We investigated the primary diagnostic value of Epstein-Barr virus (EBV) DNA load and mRNA detection in noninvasive nasopharyngeal (NP) brushings, obtained prospectively from consecutive Indonesian ENT-patients with suspected NPC (N=106) and controls. A subsequent routine NP biopsy was taken for pathological examination and EBER-RISH, yielding 85 confirmed NPC and 21 non-NPC tumour patients. EBV DNA and human DNA load were quantified by real-time PCR. NP brushings from NPC patients contained extremely high EBV DNA loads compared to the 88 non-NPC controls (p<0.0001). Using mean EBV DNA load in controls plus 3 SD as cut-off value, specificity, sensitivity, positive and negative predictive values were 98, 90, 97 and 91%, respectively. Epstein-Barr nuclear antigen 1 (EBNA1) and the carcinoma-specific BARF1 mRNA were detected by nucleic acid sequence based amplification and found in 86 and 74% of NP brushings, confirming NPC tumour cell presence. EBV RNA positivity was even higher in fresh samples stored at -80 degrees C until RNA expression analyses (88% for both EBNA1 and BARF1). EBV RNA-negative NP brushings from proven NPC cases had the lowest EBV DNA loads, indicating erroneous sampling. No EBV mRNA was detected in NP brushings from healthy donors and non-NPC patients. In conclusion, EBV DNA load measurement combined with detection of BARF1 mRNA in simple NP brushings allows noninvasive NPC diagnosis. It reflects carcinoma-specific EBV involvement at the anatomical site of tumour development and reduces the need for invasive biopsies. This procedure may be useful for confirmatory diagnosis in large serological NPC screening programs and has potential as prognostic tool.
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PMID:Noninvasive diagnosis of nasopharyngeal carcinoma: nasopharyngeal brushings reveal high Epstein-Barr virus DNA load and carcinoma-specific viral BARF1 mRNA. 1657 27

The Alice in Wonderland syndrome is a rare clinical feature characterised by perceptual disturbances including visual disturbances and distortion of the body image. This uncommon--but often easy to recognise--syndrome, to which children seem particularly susceptible, can be defined in patients with Epstein Barr Virus (EBV) infection. This report describes a 10-year-old child with a mild upper airway obstruction and manifestations of the Alice in Wonderland syndrome resulting from an acute EBV infection. Because meningo-encephalitis was considered in the differential diagnosis, an MRI examination was performed under midazolam sedation, leading to a severe life-threatening upper airway obstruction.
B-ENT 2011
PMID:Alice in Wonderland syndrome and upper airway obstruction in infectious mononucleosis. 2156 58


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