217 research outputs found
Primary Plasmacytoma of The Testis with no Evidence of Multiple Myeloma: a New Case Report and Literature Review
Plasmacytomas of the testis are extremely rare tumours, especially when occurring in the absence of a previous or concurrent diagnosis of multiple myeloma. We report a new case of solitary testicular plasmacytoma, with immunohistochemical studies showing monoclonal cytoplasmic production of IgG lambda light chains, in a 51-year-old man who had no evidence of multiple myeloma 3 years after the orchiectomy.Key Words: Testis, plasmacytoma, multiple myelom
Leiomyosarcome du Rein: A Propos Dâun Cas
Le lĂ©iomyosarcome du rein est une tumeur rare. Les auteurs ont rapportĂ© lâobservation dâun homme ĂągĂ© de 45 ans, chez lequel le diagnostic dâune tumeur rĂ©tropĂ©ritoĂ©nale gauche a Ă©tĂ© posĂ© lors de lâexploration de douleurs du flanc gauche associĂ©es Ă une altĂ©ration de lâĂ©tat gĂ©nĂ©ral et ce par lâimagerie (Echographie et scanner abdominal). La laparotomie exploratrice avait conclu Ă une tumeur rĂ©nale gauche localement Ă©voluĂ©e, une nĂ©phrectomie Ă©largie a Ă©tĂ© rĂ©alisĂ©e et lâhistologie Ă©tait en faveur dâun lĂ©iomyosarcome rĂ©nal. Une rĂ©cidive locale a Ă©tĂ© diagnostiquĂ©e aprĂšs un recul de 6 mois. AprĂšs une nouvelle laparotomie, lâabstention Ă©tait de mise devant le caractĂšre Ă©voluĂ© de la rĂ©cidive. Le but de cette observation est double. Le premier, est la nĂ©cessitĂ© de faire un diagnostic prĂ©coce, afin dâintervenir sur une tumeur de petite taille, plus accessible Ă la chirurgie. Le second, est de discuter la place du traitement adjuvant, qui pourrait rĂ©duire le risque de rĂ©cidive prĂ©coce.Mots clĂ©s : LĂ©iomyosarcome, rei
Le carcinome oncocytaire de la parotide : A propos dâun cas
Introduction : Le carcinome oncocytaireest une tumeur salivaire rare. Sa prise en charge est non codifiĂ©e et son pronostic semble ĂȘtre mauvais. Le but est dâĂ©tudier les caractĂ©ristiques Ă©pidĂ©miocliniques et thĂ©rapeutiques des carcinomes oncocytaires de la parotide.Observation: Homme de 79 ans a consultĂ© pour une tumĂ©faction parotidienne gauche Ă©voluant depuis 2 mois. L'examena montrĂ© une masse dure mal limitĂ©e de la rĂ©gion parotidienne gauche associĂ©e Ă des nodules cutanĂ©scervicaux, des adĂ©nopathies cervicales et axillaires homolatĂ©rales. Lâexamen du cavuma montrĂ© une asymĂ©trie de la paroi latĂ©rale gauche dont la biopsie a conclu Ă carcinome oncocytaire. La biopsie ganglionnaire axillaire a confirmĂ© la mĂ©tastase dâun carcinome oncocytaire.LâĂ©chographie abdominale rĂ©vĂ©lait des mĂ©tastases hĂ©patiques. Le malade Ă©tait en dehors de toute ressource thĂ©rapeutique et il est dĂ©cĂ©dĂ© aprĂšs un recul de 3 mois.Conclusion : Le carcinome oncocytairesalivaire est caractĂ©risĂ© par un potentiel Ă©levĂ© dâextension locale, rĂ©gionale et de mĂ©tastases Ă distance.Son diagnostic est basĂ© sur une combinaison des Ă©lĂ©ments cliniques et immuno-histo-chimiques. LâexĂ©rĂšse chirurgicale large est le traitement de choix. AprĂšs chirurgie, les rĂ©cidives sont frĂ©quentes. Le rĂŽle de la radiothĂ©rapie et de chimiothĂ©rapie est toujours controversĂ©.Le pronostic est mauvais.Mots clĂ©s : Carcinome oncocytaire, parotide, chirurgie, radiothĂ©rapieIntroduction : Oncocyticcarcinomais a rare salivary gland tumor. its management is not codified and its prognosis is worse. Objective: study of epidemio-clinical and therapeutic characteristic.Case report : 79 year old man presented with a left parotid swelling lasting for 2 months. The examination revealed a hard mass of left parotid region associated with cutaneous nodules, ipsilateral cervical and axillary adenopathy. An examination of the nasopharynx showed an asymmetry of the left side wall whose biopsy concluded oncocyticcarcinoma.Axillary lymph node biopsy confirmed metastasis of carcinoma oncocytic. Abdominal ultrasound revealed multiple liver metastases. The patient was without any therapeutic resource and he died after falling three months. Salivary oncocytic carcinoma is a rare tumor characterized by a high potential for local extension, regional and distant metastases. its diagnosis is based on a combination of clinical and immuno-histo-chemical.Wide surgical excision is the treatment of choice. After surgery, recurrences are common. The role of radiotherapy and chemotherapy is still controversial. The prognosis is bad.Keyswords : oncocytic carcinoma, parotid, surger
Tumeur maligne des gaines nerveuses périphériques révélant une neurofibromatose type 1
La Neurofibromatose type 1 (NF1) ou maladie de Von Recklinghausen est une affection Ă expression clinique variable. La transformation maligne est rare et redoutable. Le but de ce travail est dâĂ©tudier les critĂšres diagnostiques ainsi que la prise en charge thĂ©rapeutique de cette transformation maligne. Observation : A.B, ĂągĂ© de 16 ans, a consultĂ© pour une tumĂ©faction basicervicale antĂ©rieure dâapparition rĂ©cente, ayant augmentĂ© progressivement de taille sans signes de compression ni de dysthyroĂŻdie. Lâexamen clinique a trouvĂ© une masse dure, bien limitĂ©e, indolore, de 4 cm de grand axe siĂ©geant en regard du manubrium sternal, adhĂ©rente au plan profond et dĂ©bordant sur le creux sus sternal. A cette masse sâassociaient des taches cutanĂ©es cafĂ© au lait dissĂ©minĂ©es sur tout le corps, des nodules de Lish iriens et des neurofibromes occipitaux et parotidiens. AprĂšs une exĂ©rĂšse de la masse par voie cervicale, lâexamen histologique a conclu Ă une tumeur maligne de la gaine nerveuse. Le malade a eu dans un 2Ăšme temps, une exĂ©rĂšse plus large emportant le manubrium sternal et les tissus adjacents avec une reconstruction par des fragments de cĂŽtes mais avec des limites chirurgicales envahies. LâĂ©volution a Ă©tĂ© marquĂ©e par une poursuite Ă©volutive prĂ©coce imposant une exĂ©rĂšse chirurgicale plus large suivie dâune chimiothĂ©rapie et dâune radiothĂ©rapie externe (RT). Le malade Ă©tait cependant toujours en poursuite Ă©volutive et le dĂ©cĂšs est survenu dans un contexte d'envahissement mĂ©diastinal.Mots-clĂ©s : Neurofibromatose type 1, Sarcome, tissus mous, gaines nerveuses pĂ©riphĂ©riques, Chirurgie
Appendagite Ă©piploĂŻque primitive: Ă propos de cinq cas
La torsion de frange Ă©piploĂŻque (ou appendagite) est une pathologie rare qui survient principalement chez les adultes entre 20 et 50 ans.L'incidence de cette pathologie n'est pas rĂ©ellement connue et elle varie de 2 Ă 7% chez les patients hospitalisĂ©s pour suspicion d'appendicite oude sigmoĂŻdite. Nous rapportons cinq cas d'appendagites dont nous prĂ©cisons les particularitĂ©s cliniques, radiologiques et thĂ©rapeutiques. Il s'agit de 5 patients dont l'Ăąge moyen est de 34.6 ans (24-55). Le sexe ratio est de 1.5. Le principal motif de consultation Ă©tait un syndrome douloureux de l'abdomen principalement au niveau de la fosse iliaque droite. L'examen abdominal montrait toujours une sensibilitĂ© localisĂ©e. La fiĂšvre Ă©tait prĂ©sente chez 3 patients. Le bilan biologique rĂ©vĂšle un syndrome inflammatoire biologique chez trois patients. Les examens complĂ©mentaires radiologiques en particulier Ă©chographie abdominale et TDM abdominale ont Ă©liminĂ© formellement une urgence chirurgicale et ont Ă©voquĂ© le diagnostic d'appendagite dans trois cas. Trois patients ont bĂ©nĂ©ficiĂ© d'une coelioscopie diagnostique confirmant le diagnostic d'appendagite. L'Ă©volution Ă©tait favorable chez tous les patients. Les appendagites Ă©piploĂŻques primitives sont des Ă©tiologies rares et sous-estimĂ©es de syndrome abdominal aigu. Le diagnostic peut ĂȘtre affirmĂ© par imagerie notamment avec le scanner hĂ©licoĂŻdal injectĂ©, permettant d'instaurer ainsi un traitement mĂ©dical premier et d'Ă©viter un traitement chirurgical et des hospitalisations excessives
Hemodynamic-informed parcellation of fMRI data in a Joint Detection Estimation framework
International audienceIdentifying brain hemodynamics in event-related functional MRI (fMRI) data is a crucial issue to disentangle the vascular response from the neuronal activity in the BOLD signal. This question is usually addressed by estimating the so-called Hemodynamic Response Function (HRF). Voxelwise or region-/parcelwise inference schemes have been proposed to achieve this goal but so far all known contributions commit to pre-specified spatial supports for the hemodynamic territories by defining these supports either as individual voxels or a priori fixed brain parcels. In this paper, we introduce a Joint Parcellation-Detection-Estimation (JPDE) procedure that incorporates an adaptive parcel identification step based upon local hemodynamic properties. Efficient inference of both evoked activity, HRF shapes and supports is then achieved using variational approximations. Validation on synthetic and real fMRI data demonstrate the JPDE performance over standard detection estimation schemes and suggest it as a new brain exploration tool
Current Opinion and Practice on Peritoneal Carcinomatosis Management: The North African Perspective.
The status of peritoneal surface malignancy (PSM) management in North Africa is undetermined. The aim of this study was to assess and compare current practice and knowledge regarding PSM and examine satisfaction with available treatment options and need for alternative therapies in North Africa.
This is a qualitative study involving specialists participating in PSM management in North Africa. The survey analyzed demographic characteristics and current knowledge and opinions regarding PSM management in different institutions. We also looked at goals and priorities, satisfaction with treatment modalities and heated intraperitoneal chemotherapy (HIPEC) usefulness according to specialty, country, years of experience, and activity sector.
One-hundred and three participants responded to the survey (response rate of 57%), including oncologists and surgeons. 59.2% of respondents had more than 10 years experience and 45.6% treated 20-50 PSM cases annually. Participants satisfaction with PSM treatment modalities was mild for gastric cancer (3/10 [IQR 2-3]) and moderate for colorectal (5/10 [IQR 3-5]), ovarian (5/10 [IQR 3-5]), and pseudomyxoma peritonei (5/10 [IQR 3-5]) type of malignancies. Good quality of life and symptom relief were rated as main priorities for treatment and the need for new treatment modalities was rated 9/10 [IQR 8-9]. The perceived usefulness of systemic chemotherapy in first intention was described as high by 42.7 and 39.8% of respondents for PSM of colorectal and gastric origins, while HIPEC was described as highly useful for ovarian (49.5%) and PMP (73.8) malignancies.
The management of PSM in the North African region has distinct differences in knowledge, treatments availability and priorities. Disparities are also noted according to specialty, country, years of expertise, and activity sector. The creation of referral structures and PSM networks could be a step forward to standardized PSM management in the region
A prognostic tool to identify adolescents at high risk of becoming daily smokers
<p>Abstract</p> <p>Background</p> <p>The American Academy of Pediatrics advocates that pediatricians should be involved in tobacco counseling and has developed guidelines for counseling. We present a prognostic tool for use by health care practitioners in both clinical and non-clinical settings, to identify adolescents at risk of becoming daily smokers.</p> <p>Methods</p> <p>Data were drawn from the Nicotine Dependence in Teens (NDIT) Study, a prospective investigation of 1293 adolescents, initially aged 12-13 years, recruited in 10 secondary schools in Montreal, Canada in 1999. Questionnaires were administered every three months for five years. The prognostic tool was developed using estimated coefficients from multivariable logistic models. Model overfitting was corrected using bootstrap cross-validation. Goodness-of-fit and predictive ability of the models were assessed by R<sup>2</sup>, the c-statistic, and the Hosmer-Lemeshow test.</p> <p>Results</p> <p>The 1-year and 2-year probability of initiating daily smoking was a joint function of seven individual characteristics: age; ever smoked; ever felt like you needed a cigarette; parent(s) smoke; sibling(s) smoke; friend(s) smoke; and ever drank alcohol. The models were characterized by reasonably good fit and predictive ability. They were transformed into user-friendly tables such that the risk of daily smoking can be easily computed by summing points for responses to each item. The prognostic tool is also available on-line at <url>http://episerve.chumontreal.qc.ca/calculation_risk/daily-risk/daily_smokingadd.php</url>.</p> <p>Conclusions</p> <p>The prognostic tool to identify youth at high risk of daily smoking may eventually be an important component of a comprehensive tobacco control system.</p
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