A Case of Cutaneous Leishmaniasis with Mucosal Involvement in the Northern United States.

BACKGROUND: Cutaneous leishmaniasis (CL) is a vector-borne parasitic infection endemic to many sub-tropical regions worldwide. In the Americas, Leishmania braziliensis is responsible for most reported CL cases. Variable symptom presentation and susceptibility to secondary infection make diagnosing CL a difficult proposition for physicians who may not encounter cases frequently. CASE REPORT: We present the case of a 50-year-old man with multiple progressive lesions, diagnosed initially as a bacterial infection, who presented to a North American emergency department after several unsuccessful trials of antibiotic therapy. Eventually, polymerase chain reaction testing of a wound biopsy sample confirmed the presence of L. braziliensis. After a complicated course, the patient's infection resolved after tailored antiparasitic therapy. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: This case highlights the need to include travel history in the evaluation of atypical dermatologic infections.

Technical solutions to reduce mediastinal irradiation in young patients undergoing treatment for lymphomas: Preliminary experience.

This study aims at optimizing treatment planning in young patients affected by lymphoma (Stage II to III) by using an inclined board (IB) that allows reducing doses to the organs at risk. We evaluated 19 young patients affected by stage I to III lymphomas, referred to our Department for consolidation radiotherapy (RT) treatment on the mediastinum. Patients underwent 2 planning computed tomography (CT) scans performed in different positions: flat standard position and inclined position. A direct comparison between the different treatment plans was carried out analyzing dosimetric parameters obtained from dose-volume histograms generated for each plan. Comparison was performed to evaluate the sparing obtained on breast and heart. Dosimetric evaluation was performed for the following organs at risk (OARs): mammary glands, lungs, and heart. A statistically significant advantage was reported for V5, V20, and V30 for the breast when using the inclined board. A similar result was obtained for V5 and V10 on the heart. No advantage was observed in lung doses. The use of a simple device, such as an inclined board, allows the optimization of treatment plan, especially in young female patients, by ensuring a significant reduction of the dose delivered to breast and heart.

Linfoma anaplásico diagnosticado de forma incidental após trauma / Anaplastic lymphoma diagnosed out of a incidental form after trauma

O linfoma não Hodgkin de células T periféricas possui um subtipo denominado linfoma anaplásico de células grandes (LACG) que pode apresentar-se sob duas formas variantes que distinguem entre si na apresentação clínica e prognóstico. O artigo a seguir relata o caso de um paciente que teve o diagnóstico desta neoplasia após trauma no pé sofrido por acidente de moto. Relatos de casos publicados previamente na literatura descrevem a associação do surgimento desta entidade em partes do corpo que sofreram traumas locais de origens diversas, sugerindo uma relação direta entre eles através no influxo de células T na carcinogênese desta neoplasia linfoproliferativa.

Predicting cannabis abuse screening test (CAST) scores: a recursive partitioning analysis using survey data from Czech Republic, Italy, the Netherlands and Sweden.

INTRODUCTION: Cannabis is Europe's most commonly used illicit drug. Some users do not develop dependence or other problems, whereas others do. Many factors are associated with the occurrence of cannabis-related disorders. This makes it difficult to identify key risk factors and markers to profile at-risk cannabis users using traditional hypothesis-driven approaches. Therefore, the use of a data-mining technique called binary recursive partitioning is demonstrated in this study by creating a classification tree to profile at-risk users. METHODS: 59 variables on cannabis use and drug market experiences were extracted from an internet-based survey dataset collected in four European countries (Czech Republic, Italy, Netherlands and Sweden), n = 2617. These 59 potential predictors of problematic cannabis use were used to partition individual respondents into subgroups with low and high risk of having a cannabis use disorder, based on their responses on the Cannabis Abuse Screening Test. Both a generic model for the four countries combined and four country-specific models were constructed. RESULTS: Of the 59 variables included in the first analysis step, only three variables were required to construct a generic partitioning model to classify high risk cannabis users with 65-73% accuracy. Based on the generic model for the four countries combined, the highest risk for cannabis use disorder is seen in participants reporting a cannabis use on more than 200 days in the last 12 months. In comparison to the generic model, the country-specific models led to modest, non-significant improvements in classification accuracy, with an exception for Italy (p = 0.01). CONCLUSION: Using recursive partitioning, it is feasible to construct classification trees based on only a few variables with acceptable performance to classify cannabis users into groups with low or high risk of meeting criteria for cannabis use disorder. The number of cannabis use days in the last 12 months is the most relevant variable. The identified variables may be considered for use in future screeners for cannabis use disorders.

A sonographic lesion index for Crohn's disease helps monitor changes in transmural bowel damage during therapy.

BACKGROUND & AIMS: Therapeutic antibodies against tumor necrosis factor α (anti-TNF) are effective in patients with Crohn's disease (CD). Mucosal healing is a surrogate marker of efficacy, but little is known about the effects of anti-TNF agents on structural damage in the intestine. Small-intestine contrast ultrasonography (SICUS) is a valuable tool for assessing CD lesions. A new sonographic quantitative index (the sonographic lesion index for CD [SLIC]) was developed to quantify changes in CD lesions detected by SICUS. We explored whether the SLIC can be used to monitor transmural bowel damage in CD patients during anti-TNF therapy. METHODS: We performed a prospective study of 29 patients with ileal or ileocolonic CD treated with anti-TNF agents; patients underwent SICUS before and after scheduled induction and maintenance therapy. To determine whether changes that can be detected by SICUS occur independently of anti-TNF therapy, 7 patients with ileal CD treated with mesalamine were enrolled as controls. A clinical response was defined as steroid-free remission, with CD activity index scores less than 150. RESULTS: We observed significant improvements in SLIC scores and subscores after induction and maintenance therapy with anti-TNFs, compared with before therapy. SLIC scores and subscores and index classes were improved significantly in patients with vs without clinical responses. Controls had no improvements in terms of CD activity index or SLIC scores, or index classes. CONCLUSIONS: Sonographic assessment using the quantitative index SLIC can be used to monitor changes in transmural bowel damage during anti-TNF therapy for CD.

The Liverpool Care Pathway for cancer patients dying in hospital medical wards: a before-after cluster phase II trial of outcomes reported by family members.

BACKGROUND: Hospital is the most common place of cancer death but concerns regarding the quality of end-of-life care remain. AIM: Preliminary assessment of the effectiveness of the Liverpool Care Pathway on the quality of end-of-life care provided to adult cancer patients during their last week of life in hospital. DESIGN: Uncontrolled before-after intervention cluster trial. SETTINGS/PARTICIPANTS: The trial was performed within four hospital wards participating in the pilot implementation of the Italian version of the Liverpool Care Pathway programme. All cancer patients who died in the hospital wards 2-4 months before and after the implementation of the Italian version of Liverpool Care Pathway were identified. A total of 2 months after the patient's death, bereaved family members were interviewed using the Toolkit After-Death Family Interview (seven 0-100 scales assessing the quality of end-of-life care) and the Italian version of the Views of Informal Carers - Evaluation of Services (VOICES) (three items assessing pain, breathlessness and nausea-vomiting). RESULTS: An interview was obtained for 79 family members, 46 (73.0%) before and 33 (68.8%) after implementation of the Italian version of Liverpool Care Pathway. Following Italian version of Liverpool Care Pathway implementation, there was a significant improvement in the mean scores of four Toolkit scales: respect, kindness and dignity (+16.8; 95% confidence interval = 3.6-30.0; p = 0.015); family emotional support (+20.9; 95% confidence interval = 9.6-32.3; p < 0.001); family self-efficacy (+14.3; 95% confidence interval = 0.3-28.2; p = 0.049) and coordination of care (+14.3; 95% confidence interval = 4.2-24.3; p = 0.007). No significant improvement in symptom' control was observed. CONCLUSIONS: These results provide the first robust data collected from family members of a preliminary clinically significant improvement, in some aspects, of quality of care after the implementation of the Italian version of Liverpool Care Pathway programme. The poor effect for symptom control suggests areas for further innovation and development.

Development of a numerical index quantitating small bowel damage as detected by ultrasonography in Crohn's disease.

Small intestine contrast ultrasonography (SICUS) has emerged as a valuable tool in the detection of intestinal damage in Crohn's disease (CD). Our aim was to develop a numerical index quantitating small bowel damage as detected by SICUS in patients with an established diagnosis of CD. One hundred and ten patients with ileal or ileocolonic CD were prospectively enrolled and followed up for one year. Disease activity was assessed by CDAI and CRP levels. Study variables included bowel wall thickness, lumen diameter, lesion length and number of lesion site. Fistula, mesenteric adipose tissue alteration, abscess and lymphnodes were also considered. Bowel segments were considered as a hollow cylinder. Standardized variations of variables were combined into a statistical and mathematical model to create an algorithm scoring an index value ranging from 0 to 200. Index was subdivided into a severity scale with 5 classes from the lower (A) to the higher score (E). Median lesion index value was significantly higher (p<0.005) in patients with a CDAI>150 and in patients with CRP>5 mg/l (p=0.003). Patients classified in class E and D at SICUS underwent surgery within one year follow up more frequently than those in class C, B and A (p<0.0001). We propose a new index for assessment of small bowel lesions in CD (SLIC: sonographic lesion index for CD) developed by using SICUS. This index may turn ultrasonography in CD from a descriptive qualitative assessment to a quantitative numerical index suitable for comparison studies.

Doença de Behçet: aspectos etiopatogênicos / Behçet's disease: etiopathogenic aspects

A doença de Behçet (DB) é uma vasculite sistêmica, recorrente e crônica com manifestações que incluem úlceras orogenitais, uveíte, sinovite, tromboflebite e sintomas envolvendo o SNC, trato gastrointestinal e pulmão. Embora a patogênese da DB não seja totalmente esclarecida, existem estudos apontando para possível participação de agentes infecciosos (virais e bacterianos), fatores genéticos e desregulação imunológica. Dentre os agentes infecciosos, alguns trabalhos sugerem o possível papel do Streptococcus sanguis (SS). Os pacientes com DB mostram aumento da frequência de ss na flora oral, comparada com controles, bem como de anticorpos séricos contra certos sorotipos de ss. No soro de alguns pacientes foi possível observar aumento de anticorpos específicos contra HSP-65 (Heat Shock Protein) de Mycobacterium tuberculosis, que são capazes de produzir reação cruzada com certos sorotipos de ss. Estudos recentes demonstraram que o HLA-B, até então estabelecido como associado à DB, poderia não ser o lócus primário responsável pela predisposição à doença, sendo sugerida a participação de outros genes localizados próximos ao lócus HLA-B, incluindo os genes MICA, PERB, e NOB. Em conclusão, uma proposta etiopatogênica é de que um antígeno particular, provavelmente de origem bacteriana, seja apresentado por macrófagos e reconhecido por células T CD4+ no contexto do MHC classe II. Linfócitos T ativados produziriam citocinas como IL-2, IFN-y, TNF-B e induziriam a proliferação e diferenciação de células B específicas. Macrófagos ativados por IFN-Y são capazes de liberar citocinas inflamatórias como TNF-alfa, IL-1, e IL-8. Fator de necrose tumoral (TNF) e IL-1 poderiam induzir a expressão de moléculas de adesão em células endoteliais, enquanto a IL-8 estaria envolvida na quimiotaxia e ativação de neutrófilos no sítio da reação inflamatória. Esses eventos seriam responsáveis pela passagem de polimorfonucleares neutrófilos e linfócitos T ativados através do endotélio na área inflamada