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Coxsackievirus B infection is common in children and young adults, usually causing mild symptoms in the gastrointestinal or upper respiratory tract. However, some patients develop pleurodynia, carditis or aseptic meningitis. This viral infection can be serious in the fetus and fatal in the newborn. Coxsackievirus B infection may cause a postviral fatigue syndrome, juvenile-onset insulin-dependent diabetes mellitus and other chronic diseases.
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PMID:Complications following coxsackievirus B infection. 284 20

Over the past 25 years, Eikenella corrodens has increasingly been recognized for its pathogenic potential. Previously identified as an organism most likely to cause opportunistic infection in the immunocompromised host, Eikenella more recently has been implicated in a number of clinical infections in non-immunocompromised patients. We report a case of community-acquired pneumonia, caused by Eikenella, in a patient with diabetes mellitus and a past history of testicular cancer. A review of the literature was conducted in order to review other cases of pulmonary infection with Eikenella, in immunocompetent adults. The condition was diagnosed in 15 patients, occurring most often in men with a mean age of 50. Patients most often presented with fever, cough and pleuritic chest pain. Complications often involved parapneumonic effusion, empyema, and necrotic parenchymal disease. Mortality rates appear to be low. Eikenella is most often susceptible to ampicillin and has variable susceptibility to aminoglycosides. The addition of clindamycin in non-immunocompromised patients with Eikenella infection, co-infected with other pathogens, also appears to be useful. Surgical intervention plays an important role in the recovery of these patients.
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PMID:Eikenella corrodens: an unusual cause of severe parapneumonic infection and empyema in immunocompetent patients. 1144 95

The case of a 43-year-old man with diabetes and alcoholism admitted to the emergency room with shock, fever, pleuritic chest pain and systemic symptoms is presented. Laboratory tests revealed anemia, leukocytosis, thrombocytopenia, high sedimentation rate and D-dimers, hypoxemia and hypocapnea. He also had sinus tachycardia, rSR' in V1 and an opacity on the periphery of the right pulmonary field. Blood and urine cultures were negative, as were serological markers. The echocardiogram showed a large mass adhering to the tricuspid valve, suggestive of myxoma. The patient underwent surgery, and anatomopathological examination of the mass showed it to be a bacterial vegetation, with no agent isolated. It is pointed out that differential diagnosis is difficult between a myxoma with systemic symptomatology associated with a possible pulmonary embolism, and tricuspid endocarditis with negative blood culture associated with a septic pulmonary embolism, which turned out to be the diagnosis in this patient.
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PMID:Pulmonary embolism associated with a large tricuspid-related mass. 1612 78

Coccidioidomycosis is endemic in the southwestern United States, resulting in 100,000 infections annually. The majority of these infections are asymptomatic or manifest as community-acquired pneumonia. In rare cases, patients can present with a mononuclear-cell predominant pyopneumothorax. The presence of spherules in tissue specimens is pathognomonic of this condition. A 72-year-old man born in Arizona with a heavy smoking history, presented with a 1-month history of weakness, night sweats, exertional dyspnea, and left pleuritic chest pain. The physical examination was remarkable for decreased breath sounds and dullness to percussion at the left lung base. His initial laboratory examination showed leukocytosis, eosinophilia, and elevated C-reactive protein. Computed tomography of the chest revealed a left lower lobe infiltrate, a cavity with air-crescent sign and hydropneumothorax. The pleural fluid was sampled and revealed an eosinophilic exudate with normal pH. Bacterial and fungal cultures of the pleural fluid were negative. Biopsy of the cavity wall showed chronic inflammation, fungal hyphae, and rare spherule-like structures. The surgical specimen culture grew Coccidioides immitis. Complement fixation for coccidioidomycosis performed on a serum sample was positive at a titer of 1:2 but a latex agglutinin test was negative. The patient was diagnosed with chronic fibrocavitary pneumonia with pyopneumothorax secondary to C. immitis infection and discharged on itraconazole for 1 year. Coccidioidomycosis can present in a variety of forms and should be part of the differential diagnosis in patients presenting with cavitation, air-crescent sign, eosinophilic pleural effusion, and hyphae and spherules on the tissue specimen. Chronic fibrocavitary pneumonia should be especially considered in patients who lived in endemic areas and have risk factors such as diabetes mellitus or pulmonary fibrosis related to smoking.
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PMID:Spherules, hyphae, and air-crescent sign. 1855 86

The aim of our study was to obtain comprehensive insight into the bacteriological and clinical profile of community-acquired pneumonia requiring hospitalization. The patient population consisted of 100 patients admitted with the diagnosis of community-acquired pneumonia (CAP), as defined by British Thoracic society, from December 1998 to Dec 2000, at the Sher- i-Kashmir institute of Medical Sciences Soura, Srinagar, India. Gram negative organisms were the commonest cause (19/29), followed by gram positive (10/29). In 71 cases no etiological cause was obtained. Pseudomonas aeruginosa was the commonest pathogen (10/29), followed by Staphylococcus aureus (7/29), Escherichia coli (6/29), Klebsiella spp. (3/29), Streptococcus pyogenes (1/29), Streptococcus pneumoniae (1/29) and Acinetobacter spp. (1/29). Sputum was the most common etiological source of organism isolation (26) followed by blood (6), pleural fluid (3), and pus culture (1). Maximum number of patients presented with cough (99%), fever (95%), tachycardia (92%), pleuritic chest pain (75%), sputum production (65%) and leucocytosis (43%). The commonest predisposing factors were smoking (65%), COPD (57%), structural lung disease (21%), diabetes mellitus (13%), and decreased level of consciousness following seizure (eight per cent) and chronic alcoholism (one per cent). Fourteen patients, of whom, nine were males and five females, died. Staphylococcus aureus was the causative organism in four, Pseudomonas in two, Klebsiella in one, and no organism was isolated in seven cases. The factors predicting mortality at admission were - age over 62 years, history of COPD or smoking, hypotension, altered sensorium, respiratory failure, leucocytosis, and staphylococcus pneumonia and undetermined etiology. The overall rate of identification of microbial etiology of community-acquired pneumonia was 29%, which is very low, and if serological tests for legionella, mycoplasma and viruses are performed the diagnostic yield would definitely be better. This emphasizes the need for further studies (including the serological tests for Legionella, mycoplasma and viruses) to identify the microbial etiology of CAP.
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PMID:Bacteriological and clinical profile of Community acquired pneumonia in hospitalized patients. 2061 35

Legionella pneumophila has been increasingly recognized as a cause of community-acquired pneumonia (CAP) and an important public health problem worldwide. We conducted the present study to assess trends in epidemiology, diagnosis, clinical features, treatment, and outcomes of sporadic community-acquired L. pneumophila pneumonia requiring hospitalization at a university hospital over a 15-year period (1995-2010). Among 3934 nonimmunosuppressed hospitalized patients with CAP, 214 (5.4%) had L. pneumophila pneumonia (16 cases were categorized as travel-associated pneumonia, and 21 were part of small clusters). Since the introduction of the urinary antigen test, the diagnosis of L. pneumophila using this method remained stable over the years (p = 0.42); however, diagnosis by means of seroconversion and culture decreased (p < 0.001 and p = 0.001, respectively). The median age of patients with L. pneumophila pneumonia was 58.2 years (SD 13.8), and 76.4% were male. At least 1 comorbid condition was present in 119 (55.6%) patients with L. pneumophila pneumonia, mainly chronic heart disease, diabetes mellitus, and chronic pulmonary disease. The frequency of older patients (aged >65 yr) and comorbidities among patients with L. pneumophila pneumonia increased over the years (p = 0.06 and p = 0.02, respectively). In addition, 100 (46.9%) patients were classified into high-risk classes according to the Pneumonia Severity Index (groups IV-V). Twenty-four (11.2%) patients with L. pneumophila pneumonia received inappropriate empirical antibiotic therapy at hospital admission. Compared with patients who received appropriate empirical antibiotic, patients who received inappropriate therapy more frequently had acute onset of illness (p = 0.004), pleuritic chest pain (p = 0.03), and pleural effusion (p = 0.05). The number of patients who received macrolides decreased over the study period (p < 0.001), whereas the number of patients who received levofloxacin increased (p < 0.001). No significant difference was found in the outcomes between patients who received erythromycin and clarithromycin. However, compared with macrolide use during hospital admission, levofloxacin therapy was associated with a trend toward a shorter time to reach clinical stability (median, 3 vs. 5 d; p = 0.09) and a shorter length of hospital stay (median, 7 vs. 10 d; p < 0.001). Regarding outcomes, 38 (17.8%) patients required intensive care unit (ICU) admission, and the inhospital case-fatality rate was 6.1% (13 of 214 patients). The frequency of ICU admission (p = 0.34) and the need for mechanical ventilation (p = 0.57) remained stable over the study period, but the inhospital case-fatality rate decreased (p = 0.04). In the logistic regression analysis, independent factors associated with severe disease (ICU admission and death) were current/former smoker (odds ratio [OR], 2.96; 95% confidence interval [CI], 1.01-8.62), macrolide use (OR, 2.40; 95% CI, 1.03-5.56), initial inappropriate therapy (OR, 2.97; 95% CI, 1.01-8.74), and high-risk Pneumonia Severity Index classes (OR, 9.1; 95% CI, 3.52-23.4). In conclusion, L. pneumophila is a relatively frequent causative pathogen among hospitalized patients with CAP and is associated with high morbidity. The annual number of L. pneumophila cases remained stable over the study period. In recent years, there have been significant changes in diagnosis and treatment, and the inhospital case-fatality rate of L. pneumophila pneumonia has decreased.
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PMID:Community-acquired Legionella pneumophila pneumonia: a single-center experience with 214 hospitalized sporadic cases over 15 years. 2326 95

Infection of implanted cardiac devices has a low rate of occurrence. Fungal infections of such devices represent an atypical phenomenon, associated with high mortality. Both medical and surgical therapies are recommended for a successful outcome. A 60-year-old woman with past medical history of heart failure with reduced ejection fraction, implantable cardioverter-defibrillator (ICD) placement, sarcoidosis and diabetes presented with fevers and atypical pleuritic chest pain. Transthoracic echocardiogram revealed a highly mobile 2.09 cm by 4.49 cm mass associated with the ICD wire. Blood cultures were positive for Candida albicans. The patient underwent sternotomy for removal. The vegetation was 4 cm by 2 cm by 2 cm in size, attached to the right ventricle without interference with the tricuspid valve. The patient was treated with micafungin for 2 weeks and then fluconazole for 6 weeks. In this case report, we describe the rare infection of an ICD lead with C. albicans, in the form of a fungal ball. This is the 18th reported case of Candida device-related endocarditis and the first reported in a woman. Prior case reports have occurred primarily in pacemaker rather than ICD leads. The vegetation size is also one of the largest that has been reported, measuring 4 cm at its greatest length. As Candida device-related endocarditis is so rare, and as fatality occurs in half of cases, clinical management can only be derived from sporadic case reports. Therefore, the course of this patient's disease care will be a useful adjunct to the current literature for determining treatment and prognosis in similar cases.
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PMID:Rare infection of implantable cardioverter-defibrillator lead with Candida albicans: case report and literature review. 2495 37

Ectopic breast is defined as the presence of breast tissue outside the pectoral region. In this article, we are reporting an extremely rare case of pulmonary aberrant breast tissue. A 79-years-old Caucasian woman with the history of hypertension, diabetes mellitus and ischemic heart disease, presented to the emergency department for worsening dyspnea on exertion and pleuritic chest pain over the last few days. Both thoracic CT scan and the gross evaluation of tumor after its removal by thoracotomy were in favor of a soft tissue tumor such as pulmonary lipoma, whilst surprisingly the histological examinations revealed the mass to be ectopic breast tissue. Although it is extremely rare, this diagnosis should be considered in the evaluation of pulmonary masses.
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PMID:Away from the milky way: An extremely rare case of pulmonary ectopic breast. 2562

We report a case of pulmonary cryptococcoma, in an adult with recently detected diabetes, mimicking as lung cancer. A 45-year-old gentleman with past history of pulmonary tuberculosis presented with fever, cough with expectoration, pleuritic chest pain and hemoptysis. Chest radiograph and computed tomography revealed right lower lobe mass which significantly enhanced on contrast administration. Ultrasound guided biopsy was done which on histopathological examination showed non-necrotizing granulomas with narrow-based budding yeast cells suggestive of cryptococcosis. Detailed work-up for dissemination of infection was negative. A dramatic response to anti-fungal treatment was observed and the patient is doing fine on follow-up.
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PMID:Pulmonary Cryptococcoma Masquerading as Lung Cancer. 2773 54

A 59-year-old male with a history of nonobstructive coronary artery disease, diabetes mellitus, hypertension, and prostate cancer presented to the hospital with 1-day history of pleuritic chest pain. Initial workup for acute coronary event was unremarkable. Chest X-ray revealed multiple small radial densities which were linear and hyperdense, consistent with embolization of metallic seeds to the pulmonary circulation. The patient was noted to have had radioactive metallic seeds implanted for prostate cancer 6 months ago. Diagnosis of pulmonary embolization of prostatic seeds is challenging as they frequently present with chest pain mimicking acute coronary syndromes.
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PMID:Embolized prostatic brachytherapy seeds mimicking acute chest pain syndromes. 2902 62


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