Evaluation of COVID-19 impact on DELAYing diagnostic-therapeutic pathways of lung cancer patients in Italy (COVID-DELAY study): fewer cases and higher stages from a real-world scenario.

INTRODUCTION: COVID-19 has disrupted the global health care system since March 2020. Lung cancer (LC) patients (pts) represent a vulnerable population highly affected by the pandemic. This multicenter Italian study aimed to evaluate whether the COVID-19 outbreak had an impact on access to cancer diagnosis and treatment of LC pts compared with pre-pandemic time. METHODS: Consecutive newly diagnosed LC pts referred to 25 Italian Oncology Departments between March and December 2020 were included. Access rate and temporal intervals between date of symptoms onset and diagnostic and therapeutic services were compared with the same period in 2019. Differences between the 2 years were analyzed using the chi-square test for categorical variables and the Mann-Whitney U test for continuous variables. RESULTS: A slight reduction (-6.9%) in newly diagnosed LC cases was observed in 2020 compared with 2019 (1523 versus 1637, P = 0.09). Newly diagnosed LC pts in 2020 were more likely to be diagnosed with stage IV disease (P < 0.01) and to be current smokers (someone who has smoked more than 100 cigarettes, including hand-rolled cigarettes, cigars, cigarillos, in their lifetime and has smoked in the last 28 days) (P < 0.01). The drop in terms of new diagnoses was greater in the lockdown period (percentage drop -12% versus -3.2%) compared with the other months included. More LC pts were referred to a low/medium volume hospital in 2020 compared with 2019 (P = 0.01). No differences emerged in terms of interval between symptoms onset and radiological diagnosis (P = 0.94), symptoms onset and cytohistological diagnosis (P = 0.92), symptoms onset and treatment start (P = 0.40), and treatment start and first radiological revaluation (P = 0.36). CONCLUSIONS: Our study pointed out a reduction of new diagnoses with a shift towards higher stage at diagnosis for LC pts in 2020. Despite this, the measures adopted by Italian Oncology Departments ensured the maintenance of the diagnostic-therapeutic pathways of LC pts.

Method for removal of samples of ear canal and tympanic membrane for histologic and immunhistochemical study.

UNLABELLED: Temporal bones are valuable resources to study ear diseases. Although there are several methods for removing temporal bones from cadavers, such methods are not usually described in enough details in experimental research papers. OBJECTIVES: To describe a simple and rapid method for ear canal and tympanic membrane removal, and to evaluate its viability for histologic and immunohistochemical studies. MATERIALS AND METHODS: In this experimental study, we obtained 31 ear canal and tympanic membrane samples from cadavers, with a conventional power drill and plug cutter. The material was dissected and samples containing ear canals and tympanic membranes were obtained in blocks. The samples were analyzed by histology and immunohistochemistry. RESULTS: Removal of small and good quality samples containing entire ear canals and tympanic membranes. In all the samples, it was possible to perform both histological and immunohistochemical analyses. CONCLUSION: This method was easily achievable, reproducible and yielded good quality samples, both for training purposes and for experimental research. All the samples were viable for histological and immunohistochemical analyses.

Método prático de obtenção de amostras de meato acústico externo e membrana timpânica para estudo histológico e imunohistoquímico / Method for removal of samples of ear canal and tympanic membrane for histologic and immunhistochemical study

Ossos temporais humanos constituem valiosas fontes de estudo das doenças relacionadas à orelha. Apesar dos vários métodos existentes para obtenção de amostras de ossos temporais de cadáveres, geralmente estes métodos não são descritos em detalhes nos artigos envolvendo pesquisa. OBJETIVOS: Descrever um método prático e rápido para obtenção de amostras de meato acústico externo e membrana timpânica, e verificar sua viabilidade para estudo histológico e imunohistoquímico. MATERIAL E MÉTODO: Para este estudo experimental, foram obtidas 31 amostras de meato acústico externo e membrana timpânica de cadáveres com a utilização de furadeira convencional e broca do tipo serra copo. O material foi dissecado para obtenção de amostras em bloco contendo o meato acústico externo e a membrana timpânica. Estas amostras foram analisadas por histologia e imunohistoquímica. RESULTADOS: Foi possível a remoção de amostras de pequeno volume e de boa qualidade, o que facilitou a obtenção de amostras contendo todo o meato acústico externo e membrana timpânica. Em todas as amostras, foi possível realização de estudo histológico e imunohistoquímico. CONCLUSÃO: O método aqui descrito foi facilmente exequível, reprodutível e produziu amostras de boa qualidade, seja para treinamento ou pesquisa experimental. Todas as amostras foram viáveis para a realização de estudo histológico e imunohistoquímico.

Temporal bones are valuable resources to study ear diseases. Although there are several methods for removing temporal bones from cadavers, such methods are not usually described in enough details in experimental research papers. OBJECTIVES: To describe a simple and rapid method for ear canal and tympanic membrane removal, and to evaluate its viability for histologic and immunohistochemical studies. MATERIALS AND METHODS: In this experimental study, we obtained 31 ear canal and tympanic membrane samples from cadavers, with a conventional power drill and plug cutter. The material was dissected and samples containing ear canals and tympanic membranes were obtained in blocks. The samples were analyzed by histology and immunohistochemistry. RESULTS: Removal of small and good quality samples containing entire ear canals and tympanic membranes. In all the samples, it was possible to perform both histological and immunohistochemical analyses. CONCLUSION: This method was easily achievable, reproducible and yielded good quality samples, both for training purposes and for experimental research. All the samples were viable for histological and immunohistochemical analyses.

Hyperproliferation markers in ear canal epidermis.

UNLABELLED: Several studies involving immunohistochemical methods to assess external auditory canal epidermis have been performed with different objectives. With this method it is possible to assess the expression of various antigens such as cytokeratins, cytokines, and hyperproliferation markers among others. AIM: to revise, describe and analyze the knowledge generated by identifiable papers published on the worldwide literature about immunohistochemical hyperproliferation markers in normal external auditory canal epidermis. MATERIALS AND METHODS: systematic review of the papers published until 2009, in indexed international journals. RESULTS: Various antigens related to hyperproliferation were investigated by immunohistochemical methods among the included papers. The most studied ones were cytokeratin 16, Ki-67 and PCNA. CONCLUSIONS: most of the studies utilized external auditory canal epidermis as control sample to study external ear or middle ear cholesteatoma with immunohistochemical methods. There is a hyperproliferative antigen concentration, such as CK16, Ki-67 and PCNA, in the annulus tympanicus, adjacent meatus and tympanic regions, mainly in the lower areas.

Marcadores de hiperproliferação na epiderme do meato acústico externo / Hyperproliferation markers in ear canal epidermis

Vários estudos envolvendo métodos imunoistoquímicos para avaliação da epiderme do meato acústico externo já foram realizados com os mais diversos objetivos. Por estes métodos é possível avaliar a expressão de antígenos como as citoqueratinas, citocinas, marcadores de hiperproliferação, entre outros. OBJETIVO: Revisar, descrever e analisar a expressão dos marcadores imunoistoquímicos de hiperproliferação na epiderme do meato acústico externo normal. MATERIAIS E MÉTODOS: Revisão sistemática de artigos publicados até o ano de 2009 em periódicos internacionais indexados. RESULTADOS: Vários antígenos relacionados à hiperproliferação foram pesquisados por meio de métodos imunoistoquímicos dentre os artigos analisados. Os mais estudados foram a citoqueratina 16, o Ki-67 e o PCNA. CONCLUSÕES: A maioria dos trabalhos utilizou fragmentos de epiderme do meato acústico externo como amostra controle para estudo imunoistoquímico do colesteatoma da orelha média ou externa. Há uma concentração de marcadores de hiperproliferação como a CK16, o Ki-67 e o PCNA no anel fibrocartilagíneo e nas regiões adjacentes do meato acústico externo e da membrana timpânica.

Several studies involving immunohistochemical methods to assess external auditory canal epidermis have been performed with different objectives. With this method it is possible to assess the expression of various antigens such as cytokeratins, cytokines, and hyperproliferation markers among others. AIM: to revise, describe and analyze the knowledge generated by identifiable papers published on the worldwide literature about immunohistochemical hyperproliferation markers in normal external auditory canal epidermis. MATERIALS AND METHODS: systematic review of the papers published until 2009, in indexed international journals. RESULTS: Various antigens related to hyperproliferation were investigated by immunohistochemical methods among the included papers. The most studied ones were cytokeratin 16, Ki-67 and PCNA. CONCLUSIONS: most of the studies utilized external auditory canal epidermis as control sample to study external ear or middle ear cholesteatoma with immunohistochemical methods. There is a hyperproliferative antigen concentration, such as CK16, Ki-67 and PCNA, in the annulus tympanicus, adjacent meatus and tympanic regions, mainly in the lower areas.

Imunohistoquímica da epiderme do meato acústico externo: revisão sistemática da literatura / Immunohistochemistry of the external auditory canal: sistematic review

Introdução: Vários estudos envolvendo métodos imunohistoquímicos para avaliação da epiderme do meato acústico externo já foram realizados com os mais diversos objetivos. Por meio deste método é possível avaliar a expressão de vários antígenos como as citoqueratinas, citocinas, marcadores de hiperproliferação entre outros. Objetivo: Revisar, descrever e analisar o conhecimento gerado pelos trabalhos identificáveis na literatura mundial sobre os padrões imunohistoquímicos da epiderme do meato acústico externo. Método: O método escolhido para alcançar os objetivos propostos foi a revisão sistemática da literatura, de artigos publicados até o ano de 2007 em periódicos internacionais indexados identificáveis. Vários antígenos foram pesquisados por meio de métodos imunohistoquímicos dentre os artigos analisados. Os mais estudados foram as citoqueratinas, Ki-67, beta-catenina, interleucinas e o PCNA. Comentários Finais: Após a revisão e análise dos trabalhos incluídos foi possível concluir que, além da maioria dos trabalhos ter utilizado a epiderme do meato acústico externo como amostra controle para estudo imunohistoquímico do colesteatoma, há uma concentração de antígenos de características hiperproliferativas, como a CK16, o Ki-67 e o PCNA no anel fibrocartilagíneo e nas regiões meatal e timpânica adjacentes, principalmente nas porções mais inferiores.

Introduction: Several studies involving immunohistochemical methods to examine external auditory canal epidermis have been performed for different purposes. Through this method it is possible to examine the expression of various antigens as cytokeratins, cytokines, hiperproliferation markers among others. Objective: To review, describe and analyze the knowledge generated by identifiable papers, published worldwide, about immunohistochemical patterns of the external auditory canal. Method: The chosen method was the systematic review of the papers published up to 2007 in international journal. Various antigens were investigated by immunohistochemical methods among the included papers, and the most studied ones were cytokeratins, Ki-67, beta-catenin, interleukins and PCNA. Final Comments: After reviewing and analysing the papers, it was possible to conclude that, besides most studies have used the external auditory canal epidermis as control sample to study the cholesteatoma with immunohistochemical methods, there is a hyperproliferative-characteristic antigens concentration as CK16, Ki-67 and PCNA on the annulus tympanicus, on adjacent meatal and tympanic areas, mainly on more inferior portions.

Association between nasal polyposis, Dubowitz syndrome and hyper-IgE syndrome.

Dubowitz syndrome is a rare, autosomal recessive disorder characterized by intrauterine growth retardation, short stature, microcephaly, distinct facial dysmorphism, and psychomotoric retardation. The hyper-immunoglobulin E (hyper-IgE or Job syndrome) is a primary immunodeficiency characterized by recurrent staphylococcal abscesses, recurrent cyst-forming pneumonia, and an elevated serum IgE level of >2000 IU/ml. We present the first case to our knowledge of an association between Dubowitz syndrome, hyper-IgE syndrome, and nasal polyposis (due to allergic fungal sinusitis) in a 14-year-old girl. Eosinophilic inflammatory reaction is the feature present in all three conditions. Unlike most cases of allergic fungal sinusitis, this case was not treated with an initial booster of oral steroids due to the risk of disseminated invasive fungal infection, reported in other cases of hyper-IgE syndrome. The case and its management is presented and discussed.

Dizziness associated with panic disorder and agoraphobia: case report and literature review.

Dizziness is one of the most frequent complaints in both primary and specialized medical care facilities. Many dizzy patients, without a known organic cause, considered as having idiopathic dizziness, may have a psychiatric disorder. Besides, even organic dizziness may cause or exacerbate latent psychiatric alterations. One of the most common disorders associated with dizziness is Panic Disorder with or without Agoraphobia. The aim of this paper is to report a patients case and make a literature review on the subject.

Tontura associada a distúrbio do pânico e agorafobia: relato de caso e revisão da literatura / Dizziness associated with panic disorder and agoraphobia: case report and literature review

Tontura é uma das queixas mais freqüentes no consultório médico tanto primário quanto especializado. Muitos dos pacientes que se apresentam com tontura sem causa orgânica aparente, portanto considerados como portadores de tontura idiopática, podem ter um distúrbio psiquiátrico. Além disso, mesmo a tontura de causa orgânica pode desencadear ou exacerbar alterações psiquiátricas "latentes". Um dos distúrbios mais comumente associados à tontura é o Distúrbio do Pânico, com ou sem Agorafobia. O objetivo deste estudo é relatar o caso de uma paciente com essa associação e realizar uma revisão da literatura relacionada ao assunto.

Dizziness is one of the most frequent complaints in both primary and specialized medical care facilities. Many dizzy patients, without a known organic cause, considered as having idiopathic dizziness, may have a psychiatric disorder. Besides, even organic dizziness may cause or exacerbate latent psychiatric alterations. One of the most common disorders associated with dizziness is Panic Disorder with or without Agoraphobia. The aim of this paper is to report a patients case and make a literature review on the subject.