101 research outputs found
Calcified amorphous tumor of the heart in an adult female: a case report
<p>Abstract</p> <p>Introduction</p> <p>Cardiac calcified amorphous tumor is a rare, non-neoplastic intra-cavity cardiac mass composed of calcium deposits in a background of amorphous degenerating fibrinous material. Only a few cases of this rare lesion have been reported in the available literature. Clinico-pathological differentiation of this lesion from calcified atrial myxoma, calcified thrombi or other cardiac neoplasms is extremely difficult; hence pathologic examination is the mainstay of diagnosis. To the best of our knowledge this entity has not been reported in the Indian literature.</p> <p>Case presentation</p> <p>A 40-year-old woman of Indian origin presented with progressive dyspnea, fatigue and cough. She was diagnosed as having a calcified right atrial mass. The mass was excised. Histologic examination revealed the mass to be composed of amorphous eosinophilic fibrin with dense calcification. No myxomatous tissue was seen and a final diagnosis of calcified amorphous tumor of the heart was rendered.</p> <p>Conclusions</p> <p>Calcified amorphous tumor is a rare cardiac lesion with an excellent outcome following complete surgical removal. Since clinico-radiologic differentiation from other cardiac masses is not possible in most cases, histopathological examination is the only modality for diagnosis. Hence, histopathologists should be aware of this rare entity in the differential diagnoses of cardiac mass.</p
Adherent Human Alveolar Macrophages Exhibit a Transient Pro-Inflammatory Profile That Confounds Responses to Innate Immune Stimulation
Alveolar macrophages (AM) are thought to have a key role in the immunopathogenesis of respiratory diseases. We sought to test the hypothesis that human AM exhibit an anti-inflammatory bias by making genome-wide comparisons with monocyte derived macrophages (MDM). Adherent AM obtained by bronchoalveolar lavage of patients under investigation for haemoptysis, but found to have no respiratory pathology, were compared to MDM from healthy volunteers by whole genome transcriptional profiling before and after innate immune stimulation. We found that freshly isolated AM exhibited a marked pro-inflammatory transcriptional signature. High levels of basal pro-inflammatory gene expression gave the impression of attenuated responses to lipopolysaccharide (LPS) and the RNA analogue, poly IC, but in rested cells pro-inflammatory gene expression declined and transcriptional responsiveness to these stimuli was restored. In comparison to MDM, both freshly isolated and rested AM showed upregulation of MHC class II molecules. In most experimental paradigms ex vivo adherent AM are used immediately after isolation. Therefore, the confounding effects of their pro-inflammatory profile at baseline need careful consideration. Moreover, despite the prevailing view that AM have an anti-inflammatory bias, our data clearly show that they can adopt a striking pro-inflammatory phenotype, and may have greater capacity for presentation of exogenous antigens than MDM
Recruiting participants for interventions to prevent the onset of depressive disorders: Possibile ways to increase participation rates
Background: Although indicated prevention of depression is available for about 80% of the Dutch population at little or no cost, only a small proportion of those with subthreshold depression make use of these services. Methods: A narrative review is conducted of the Dutch preventive services in mental health care, also addressing the problem of low participation rates. We describe possible causes of these low participation rates, which may be related to the participants themselves, the service system, and the communication to the public, and we put forward possible solutions to this problem. Results: There are three main groups of reasons why the participation rates are low: reasons within the participants (e.g., not considering themselves as being at risk; thinking the interventions are not effective; or being unwilling to participate because of the stigma associated with depression); reasons within the health care system; and reasons associated with the communication about the preventive services. Possible solutions to increasing the participation rate include organizing mass media campaigns, developing internet-based preventive interventions, adapting preventive interventions to the needs of specific subpopulations, positioning the services in primary care, integrating the interventions in community-wide interventions, and systematically screening high-risk groups for potential participants. Discussion: Prevention could play an important role in public mental health in reducing the enormous burden of depression. However, before this can be realized more research is needed to explore why participation rates are low and how these rates can be improved
June 2013 pulmonary case of the month: diagnosis makes a difference
No abstract available. Article truncated at 150 words. History of Present Illness A 64 year old man from Southern Arizona was referred for a second opinion on a diagnosis of chronic eosinophilic pneumonia that was poorly responsive to corticosteroid therapy. The patient first became ill February 2012 with cough and congestion. His wife was ill at the same time. Both were treated with antibiotics. His wife improved but he never fully recovered with ongoing symptoms of cough and some dyspnea. He was admitted to another hospital in August 2012 due to worsening shortness of breath and pulmonary infiltrates on chest x-ray. During this admission he underwent bronchoscopy with bronchoalveolar lavage (BAL) that demonstrated 78% eosinophils. A video-assisted thorascopic (VATs) lung biopsy was done and the patient was diagnosed with chronic eosinophilic pneumonia. He was begun on therapy with high dose prednisone (80 mg/day) but had only slight improvement in symptoms. He was followed by a pulmonologist and continued
June 2016 pulmonary case of the month
No abstract available. Article truncated after first page. History of Present Illness: A 77-year-old gentleman presented with 6 weeks of: sinus congestion; bloody nasal discharge; cough with maroon sputum; dyspnea; hearing loss; painful peripheral neuropathy; left median neuropathy and left foot drop; fevers. Past Medical History, Social History and Family History; no significant past medical history; retired; does not smoke; family history is noncontributory. Physical Examination: temperature of 37.8Âș C; bloody nasal discharge; lungs clear to auscultation and percussion; heart with a regular rhythm without murmur; neurologic findings consistent with his complaints. Laboratory Evaluation: elevated white blood cell count with a left shift; Na+ 130 mEq/L; 10-20 RBCs on urinalysis. Radiographic Evaluation: Initial chest x-day is shown in Figure 1. Which of the following is (are) the next appropriate steps in the evaluation? 1. Transthoracic echocardiogram; 2. Treat with macrolide antibiotics for outpatient pneumonia; 3. Thoracic CT scan; 4. 1 and 3; 5. All of the above. ..
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