Clinical manifestations and diagnosis

Brucellosis is known as undulant fever or Malta fever, caused by the genus Brucella. It is the most common human zoonosis. The disease is worldwide distributed and causes significant economic losses. In animals, it causes abortion, reduction in milk production, and infertility. While brucellosisin humans is a debilitating disease with various clinical manifestations that may lead to death in some cases.

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Leptospirosis is zoonosis, presenting as a febrile illness with protean manifestations. Since disease is amenable to antibiotic therapy, early diagnosis helps in better management and prevention of complications. In many parts of our country, prevalence is either underestimated or unestimated. Hence this study was conducted with the objective of determining the seroprevalence of leptospirosis among clinically suspected cases, describe the various sociodemographic parameters, occupation and risk factors among seropositive cases.

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Schistosomiasis is an endemic disease in Egypt caused by the trematode Schistosoma which has different species. c the best known form of chronic disease with a wide range of clinical manifestations. The pathogenesis of schistosomiasis is related to the host cellular immune response. This leads to granuloma formation and neo angiogenesis with subsequent periportal fibrosis manifested as portal hypertension, splenomegaly and esophageal varices. Intestinal schistosomiasis is another well identified form of chronic schistosomal affection.

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Document presentation of content: Introduction and epidemiologic features, causative agents and pathogenic mechanisms, clinical manifestations and diagnosis, treatment options and prevention, clinical practice

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Clinical Manifestations Respiratory Diphtheria The clinical diagnosis of diphtheria is based on the constellation of sore throat; adherent tonsillar, pharyngeal, or nasal pseudomembranous lesions; and low-grade fever. In addition, diagnosis requires the isolation of C. diphtheriae or the histopathologic isolation of compatible gram-positive organisms.

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Differential Diagnosis The differential diagnosis between DIC and severe liver disease is challenging and requires serial measurements of the laboratory parameters of DIC. Patients with severe liver disease are at risk for bleeding and manifest laboratory features including thrombocytopenia (due to platelet sequestration, portal hypertension, or hypersplenism), decreased synthesis of coagulation factors and natural anticoagulants, and elevated levels of FDP due to reduced hepatic clearance. However, in contrast to DIC, these laboratory parameters in liver disease do not change rapidly.

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Clinical Presentation and Diagnosis The spectrum of clinical severity of HS is broad. Severe cases may present in infancy with severe anemia, whereas mild cases may present in young adults or even later in life. In women, HS is sometimes first diagnosed when anemia is investigated during pregnancy. The main clinical findings are jaundice, an enlarged spleen, and often gallstones; frequently it is the finding of gallstones in a young person that triggers diagnostic investigations.

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Clinical Manifestations of Sickle Cell Trait Sickle cell trait is usually asymptomatic. Anemia and painful crises are exceedingly rare. An uncommon but highly distinctive symptom is painless hematuria often occurring in adolescent males, probably due to papillary necrosis. Isosthenuria is a more common manifestation of the same process. Sloughing of papillae with urethral obstruction has been reported, as have isolated cases of massive sickling or sudden death due to exposure to high altitudes or extremes of exercise and dehydration.

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Clinical Manifestations Patients with cancer who develop deep venous thrombosis usually develop swelling or pain in the leg, and physical examination reveals tenderness, warmth, and redness. Patients who present with pulmonary embolism develop dyspnea, chest pain, and syncope, and physical examination shows tachycardia, cyanosis, and hypotension. Some 5% of patients with no history of cancer who have a diagnosis of deep venous thrombosis or pulmonary embolism will have a diagnosis of cancer within 1 year.

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Clinical Presentation and Differential Diagnosis Most head and neck cancers occur after age 50, although these cancers can appear in younger patients, including those without known risk factors. The manifestations vary according to the stage and primary site of the tumor. Patients with nonspecific signs and symptoms in the head and neck area should be evaluated with a thorough otolaryngologic exam, particularly if symptoms persist longer than 2–4 weeks. Cancer of the nasopharynx typically does not cause early symptoms.

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Clinical Manifestations and Diagnosis Epiglottitis typically presents more acutely in young children than in adolescents or adults.

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Diagnosis and Treatment of Adverse Drug Reactions The manifestations of drug-induced diseases frequently resemble those of other diseases, and a given set of manifestations may be produced by different and dissimilar drugs. Recognition of the role of a drug or drugs in an illness depends on appreciation of the possible adverse reactions to drugs in any disease, on identification of the temporal relationship between drug administration and development of the illness, and on familiarity with the common manifestations of the drugs.

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