A case of Tinea nigra associated to a bite from a European rabbit (Oryctolagus cuniculus, Leporidae): the role of dermoscopy in diagnosis

We report a case of Tinea nigra in an adolescent living in Itapema, Santa Catarina, Brazil, who presented a hyperchromic macule on the palm of the left hand, close to another erythematous macule caused by a rabbit bite. The patient received guidance on accidents and animal bites and evolved well treated with topical butenafine for the dermatomycosis. The authors also highlight the efficacy of the dermoscopic exam in diagnosing Tinea nigra with animal bite lesions and other traumas.

Case for diagnosis

Pachydermodactyly is a rare and benign form of acquired digital fibromatosis characterized by the expansion of soft tissue around proximal phalanges and interphalangeal joints. The etiology remains unknown, although it is suggested that repetitive mechanic trauma like the interlacing or rubbing of the fingers can lead to skin thickening. We report a case of a young man with skin thickening around interphalangeal joints and compulsive finger manipulation habit. The histopathology disclosed hyperkeratosis, discrete papillomatosis, mild increase of fibroblasts and dermal mucinosis. The lesions regressed partially, after finger manipulation was stopped.

Cephalometric analysis for the diagnosis of sleep apnea: a comparative study between reference values and measurements obtained for Brazilian subjects

OBJECTIVE: To verify if the reference values of Sleep Apnea cephalometric analysis of North American individuals are similar to the ones of Brazilian individuals presenting no craniofacial anomalies. The study also aimed to identify craniofacial alterations in Obstructive Sleep Apnea-Hypopnea Syndrome (OSAHS) patients in relation to individuals without clinical characteristics of the disease through this cephalometric analysis. METHOD: It were used 55 lateral cephalograms consisting of 29 for the control group of adult individuals without clinical characteristics of OSAHS and 26 apneic adults. All radiographs were submitted to Sleep Apnea cephalometric analysis through Radiocef Studio 2.0. The standard values of this analysis were compared, by means of z test, to the ones obtained from the control group and these were compared to values from apneic group through Student's t test. RESULTS: There were no significant differences between values obtained from control group and standard values. On the group of OSAHS patients it was observed a decrease on the dimensions of upper airways and an increase on the soft palate length. CONCLUSIONS: The standard values of Sleep Apnea analysis can be used as reference in Brazilian individuals. Besides, through lateral cephalograms it was possible to identify craniofacial alterations in OSAHS patients.

Emergy diagnosis and reflections towards Brazilian sustainable development

This paper presents an environmental emergy-based diagnosis of Brazil compared with Russia, India, China, South Africa and United States. Reflections on the Brazilian sustainable development are presented and discussed based on the evaluations published since 1979. The variation of the emergy per capita for Brazil from 1979 to 2007 indicates that the country's growth is tied to the exploitation of non renewable natural resources which do not directly reflect in the welfare of the population. The total emergy exported per unit of gross domestic product increased in the period, suggesting that the country exports more emergy than that contained in the money received for the exportation. With the help of the emergy indices, the future development of Brazil is explored and discussed. The comparison among the BRICS (Brazil, Russia, India, China and South Africa) countries and United States indicates that what may be appropriate and usable within one country may not be within another and that to achieve the global sustainability two concomitant actions may occur: (i) the reduction of the total emergy use in developed economies, and (ii) the reduction of indigenous resources exportation in developing economies. (C) 2013 Elsevier Ltd. All rights reserved.

EEG signal classification for epilepsy diagnosis via optimum path forest - A systematic assessment

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Prevalence and Serological Diagnosis of Relapse in Paracoccidioidomycosis Patients

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Proposal to utilize simplified Swensen protocol in diagnosis of isolated pulmonary nodule

Background: The problem of diagnosing whether a solitary pulmonary nodule is benign or malignant is even greater in developing countries due to a higher prevalence of infectious diseases. These infections generate a large number of patients who are generally asymptomatic and with a pulmonary nodule that cannot be accurately defined as having benign or malignant etiology.Purpose: To verify the percentages of benign versus malignant non-calcified nodules, the length of time after contrast agent injection is spiral computed tomography (CT) most sensitive and specific, and whether three postcontrast phases are necessary.Material and Methods: We studied 23 patients with solitary pulmonary nodules identified on chest radiographs or CT. Spiral scans were obtained with Swensen protocol, but at 3, 4, and 5 min after contrast injection onset. Nodules were classified as benign or malignant by histopathological examination or by an absence or presence of growth after 2 years of follow-up CT.Results: Of the 23 patients studied, 18 (78.2%) showed a final diagnosis of benign and five (21.7%) malignant nodules. Despite the small sample size, we obtained results similar to those of Swensen et al., with 80.0% sensitivity, 55.5% specificity, and 60.8% accuracy. Four minutes gave the greatest mean enhancement in both malignant and benign lesions.Conclusion: Small non-calcified benign nodules were much more frequent than malignant nodules. The best time for dynamic contrast-enhanced CT density analysis was 4 min postcontrast. As well as saving time and money, this simplified Swensen protocol with only precontrast and 4 min postcontrast phases also reduces patient exposure to ionizing radiation.

Methods of Analysis for Peritubular Capillaritis and Glomerulitis in Acute Renal Rejection: Capillaritis in Management of Routine Diagnosis

Glomerulitis and peritubular capillaritis have been recognized as important lesions in acute renal rejection (AR). We studied glomerulitis and peritubular capillaritis in AR by 2 methods and investigated associations with C4d, type/grade of AR, and allograft survival time. Glomerulitis was measured according to Banff scores (glomerulitis by Banff Method [gBM]) and by counting the number of intraglomerular inflammatory cells (glomerulitis by Quantitative Method [gQM]). Capillaritis was classified by the Banff scoring system (peritubular capillaritis by Banff Method [ptcBM]) and by counting the number of cells in peritubular capillaries in 10 high-power fields (hpf; peritubular capillaritis by Quantitative Method [ptcQM]). These quantitative analyses were performed in an attempt to improve our understanding of the role played by glomerulitis and capillaritis in AR. The g0 + g1 group (gBM) associated with negative C4d (P = .02). In peritubular capillaritis, a larger number of cells per 10 hpf in peritubular capillaries (ptcQM) were observed in positive C4d cases (P = .03). The group g2 + g3 (gBM) correlated with graft loss (P = .01). Peritubular capillaritis was not significantly related to graft survival time. Our study showed that the Banff scoring system is the best method to study glomerulitis and observed that the evaluation of capillaritis in routine biopsies is difficult and additional studies are required for a better understanding of its meaning in AR biopsy specimens of renal allografts.

Does Calretinin Immunohistochemistry Reduce Inconclusive Diagnosis in Rectal Biopsies for Hirschsprung Disease?

Many difficulties occur during the evaluation of rectal biopsies for the diagnosis of Hirschsprung disease. We investigated whether the introduction of calretinin (CR) immunohistochemistry in a diagnostic panel could decrease the rate of inconclusive results. Data from 82 patients undergoing rectal biopsies before and after CR introduction were analyzed. Inconclusive results were obtained in 17 of 45 rectal biopsies (37.8%) in the series of cases before CR introduction and in 5 of 42 rectal biopsies (11.9%) in the series of cases after CR (P < 0.006). The inclusion of CR in the histopathologic panel may improve the diagnostic accuracy of Hirschsprung disease.

Diagnostic accuracy of semi-quantitative and quantitative culture techniques for the diagnosis of catheter-related infections in newborns and molecular typing of isolated microorganisms

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

B-mode Ultrasound and Doppler Mode for Early-stage Pregnancy Diagnosis in Shi-Tzu Bitches

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Plant iononne diagnosis using sound balances: case study with mango (Mangifera Indica)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Comparison of PCR with stained slides of bone marrow and lymph nodes aspirates with suspect diagnosis for leishmaniasis

Visceral leishmaniasis (VL), also known as kala-azar, is a disseminated protozoan infection caused by Leishmania donovani complex. Traditionally the definite diagnosis is made by amastigote detection in the tissue. The aim this study was to evaluate the PCR technique in stained slides of bone marrow and lymph nodes aspirates with suspect diagnosis for leishmaniasis. Slides were selected totaling 62 suspect cases (33 bone marrow samples and 29 lymph node samples) and 17 positive cases (8 bone marrow and 9 lymph node). From 62 suspect cases, 39 (62.90%) were confirmed to be positive being 17 (n = 29) lymph node aspirates and 22 (n = 33) bone marrow. This finding is in agreement with the higher sensitivity of the PCR assay compared to direct microscopic observation. In conclusion, the findings of this study supports the use of PCR on archive cytological preparation stained slides for the diagnosis of canine visceral leishmaniasis, emphasizing the higher sensitivity of this technique when compared to direct microscopic examination and mostly the use of the suspect status for the cytology samples that presents the previously mentioned particularities with focus on detecting the oligosymptomatic or assymptomatic dogs in endemic areas functioning as potential reservoirs for this disease. (C) 2014 Elsevier B.V. All rights reserved.