Leiomyosarcome de la langue: à propos d’un cas

Le léiomyosarcome primitif de la langue est une tumeur rare qui se développe aux dépens des fibres  musculaires lisses. Le diagnostic est souvent difficile, fondé sur des caractéristiques immuno- histologiques particulières. L'objectif de ce travail est de décrire le profil épidémiologique, clinique, thérapeutique et évolutif du léiomyosarcome à travers un cas et une revue de la littérature. Nous  rapportons le cas d'un homme âgé de 26 ans, sans antécédents pathologique particuliers, consultant pour une tuméfaction de la langue mobile évoluant depuis 2 ans. Une biopsie de la masse a été réalisée. L'étude anatomopathologique et  immunohistochimique a confirmé le diagnostic d'un léiomyosarcome de la langue. L'IRM de la langue a objectivé un processus lesionnel intéressant la portion mobile et antérieur de la langue. Une exérèse de la masse a été réalisée. L'examen histologique a montré la présence d'un large néoplasme de 6 cm compatible à un léiomyosarcome peu différencié de la langue , de garde II selon la Fédération Nationale des Centres de Lutte Contre le Cancer (FNCLCC). Une radiothérapie externe sur la cavité buccale avec une dose de 65 Gy a été réalisée. Le patient a présenté 2 mois après la fin du  traitement une adénopathie latéro-cervicale haute  gauche (territoire II), il a bénéficié d'un curage  ganglionnaire fonctionnel intéressant les territoires I, II et III puis réadressé en radiothérapie. Le  léiomyosarcome de la langue est très rare surtout chez le sujet jeune. La chirurgie et la radiothérapie sont les armes thérapeutiques majeures. Le pronostic est très mauvais, Les facteurs les plus importants sont les marges d'exérèse et le grade.Key words: Léiomyosarcome, langue, muscle liss

Effects of fasting during Ramadan on renal function of patients with chronic kidney disease

Fasting during Ramadan is prohibited when an individual′s health is endangered. Little work has been published in this direction in patients with chronic kidney disease (CKD). We aimed to evaluate the impact of fasting during Ramadan on the renal function of patients with CKD, adjusting for the initial degree of renal impairment. We prospectively studied 60 patients with CKD (35 females; mean age 45.6 ± 15.8 years). All study patients were older than 15 years, being followed-up at the nephrology clinic for more than six months, having a stable CKD during the preceding six months and who had fasted during Ramadan the previous year. Patients who had a medical contra-indication for fasting were excluded from the study [severe or resistant arterial hypertension, insulin-requiring diabetes, acute renal failure (ARF), active renal disease, repetitive urolithiasis or terminal chronic renal failure]. Statistical analysis was performed in collaboration with the epidemiology lab at the Fez Medical School using the SPSS software version 17. Three of the study patients developed ARF in the first week and four of them at the end of the month of the study period. The risk of developing ARF was significantly higher for patients with baseline creatinine clearance of <60 mL/min/1.73 m 2 . However, the small sample size does not allow us to draw any firm conclusions on fasting during Ramadan in stable CKD patients. Studies on larger numbers of patients are recommended

A Novel Approach Based on Machine Learning, Blockchain, and Decision Process for Securing Smart Grid

Smart Grids (SGs) rely on advanced technologies, generating significant data traffic across the network, which plays a crucial role in various tasks such as electricity consumption billing, actuator activation, resource optimization, and network monitoring. This paper presents a new approach that integrates Machine Learning (ML), Blockchain Technology (BT), and Markov Decision Process (MDP) to improve the security of SG networks while ensuring accurate storage of events reported by various network devices through BT. The enhanced version of the Proof of Work (PoW) consensus mechanism ensures data integrity by preventing tampering and establishing the reliability of known and unknown attack detection. The proposed versions of PoW, namely GPoW 1.0 and GPoW 2.0, aim to make the consensus process more environmentally friendly

Breast cancer in moroccan young women: a retrospective study

Background: Breast cancer is uncommon in young women and induces more aggressive biologic characteristics. Survival in young women has been widely studied in developed countries. Less favorable prognosis and low survival were found. In Morocco, this study is the first investigation of clinical features, treatment and prognosis associated with breast cancer in young women. Findings: Four hundred and nine women aged 35 years or less were included in this study. All these women were diagnosed as having breast cancer at the National Institute of Oncology in Rabat, Morocco between 2003 and 2007. The relation between clinical and therapeutic characteristics and event-free survival (EFS) and overall survival (OS) were assessed by Cox regression analysis. The median age of the patients was 32 years. Fifty three patients (13%) have metastatic disease at diagnosis and 356 patients (87%) had localised disease. In 57.9% of the cases, the estrogen receptors status was positive. The median follow-up was 32.2 months. After 3 years the survival rate was 80.6%. In the case of localised disease, OS and EFS at 3 years were 83.2% and 62.5%, respectively. OS and EFS at 3 years was higher in patients with stage I than patients with stage II and stage III (p = 0.001). Positive estrogen receptors was significantly associated to OS and EFS at 3 years compared to negative estrogen receptors (p = 0.001). Adjuvant chemotherapy, adjuvant radio- therapy and adjuvant hormone therapy were associated with net benefit in OS and EFS at 3 years. Cox regression analysis showed that negative ER was significantly associated with poorer OS (HR = 2.42, 95% CI = 1.25 - 4.66, p < 0.009) and poorer EFS (HR = 1.73, 95%CI = 1.05 - 2.86, p = 0.03). Stage III disease were associated to poorer EFS (HR = 5.35, 95%CI = 1.60 -17.84, p = 0.006). Conclusions: In Morocco, young women with breast cancer had less favorable prognosis. Multivariate analysis showed that negative hormone receptor status was associated with lower EFS and OS. Clinical trials should be launched to improve the survival of these young women with breast cancer