Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Issam Lalya is active.

Publication


Featured researches published by Issam Lalya.


North American Journal of Medical Sciences | 2014

Sarcomatoid carcinoma of the lung: A model of resistance of chemotherapy

Imane Ouziane; Saber Boutayeb; Hind Mrabti; Issam Lalya; Mouna Rimani; Hassan Errihani

Context: Lung tumors are very heterogeneous histological entities. Pulmonary sarcomatoid carcinoma is a subset of tumors characterized by specific histological features. Their poor prognosis compared to other lung tumors is due to limited responses to different types of chemotherapy. Case Report: We report two patients with sarcomatoid tumors: A 53-year-old woman and a 46-year-old man who presented respiratory symptoms: Dyspnea, cough, associated with a deterioration of general condition. Conclusion: Pulmonary sarcomatoid carcinomas remained an unexplored entity, despite their poor prognosis. Based on these cases, we will discuss the histological and immunohistochemical features of these tumors, as well as report their responses to different chemotherapy regimens used in the course of treatment.


BMC Research Notes | 2010

Breast cancer in moroccan young women: a retrospective study

Halima Abahssain; Issam Lalya; Fatima Zahra El Mrabet; Nabil Ismaili; R. Razine; Mohammed Adnane Tazi; Hind Mrabti; Omar El Mesbahi; Nourddine Benjaafar; Redouane Abouqal; Hassan Errihani

BackgroundBreast 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.FindingsFour 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 radiotherapy 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).ConclusionsIn 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.


North American Journal of Medical Sciences | 2011

Radiotherapy on hidradenocarcinoma

Issam Lalya; Khalid Hadadi; El Mehdi Tazi; Ilham Lalya; Amine Bazine; Khalid Andaloussy; Mohamed Elmarjany; Hassan Sifat; K. Hassouni; Tayeb Kebdani; Hamid Mansouri; Noureddine Benjaafar; Brahim Khalil Elgueddari

Context: Clear cell Hidradenocarcinoma is a rare carcinoma arising from sweat glands. It is an aggressive tumor that most metastasizes to regional lymph nodes and distant viscera; surgery with safe margins is the mainstay of treatment. Case Report: We report a case of 68-year-old woman who presented with an invasive clear cell hidradenocarcinoma situated in the left parotid area which recurred 5 months after surgery, this recurrence was managed successfully by high-dose irradiation of the tumor bed (66 Gy) and regional lymphatic chains (50 Gy), after a follow-up of more than 15 months, the patient is in good local control without significant toxicity. Conclusion: Post operative radiotherapy allows better local control and should be mandatory when histological features predictive of recurrence are present: positive margins, histology poorly differentiated, perineural invasion, vascular and lymphatic invasion, lymph node involvement, and extracapsular spread.


Journal of Medical Case Reports | 2011

Periductal stromal sarcoma in a child: a case report

O. Masbah; Issam Lalya; N. Mellas; Iman Bekkouch; Mohamed Allaoui; Khalid Hassouni; Tayeb Kebdani; Asmaa Regragui; Noureddine Benjaafar; Brahim Khalil Elgueddari

IntroductionPeriductal stromal sarcoma is an extremely rare malignant fibroepithelial tumor of the breast which is characterized by its biphasic histology with benign ductal elements and a sarcomatous stroma made of spindle cells and lacking phyllodes architecture. Its therapeutic management is based on wide surgery with free margins. Adjuvant therapies are not needed. Periductal stromal sarcoma may evolve into a phyllodes tumor with time, as well as a specific soft-tissue sarcoma. To the best of our knowledge, this tumor has never been described in a child.Case presentationA 14-year-old Arabic boy was presented to our hospital one year ago with a nodule of the right breast that was gradually increasing in size without signs of inflammation. The histological examination after lumpectomy revealed a periductal stromal sarcoma with free surgical margins. No adjuvant treatment was given. At 50 months of close follow-up, no recurrence was observed.ConclusionPeriductal stromal sarcoma in a child is a very rare disease which has the same indolent behavior as it does in adults. Therefore, close follow-up is required.


BMC Research Notes | 2010

Anthracycline and concurrent radiotherapy as adjuvant treatment of operable breast cancer: a retrospective cohort study in a single institution

Nabil Ismaili; Sanaa Elmajjaoui; Issam Lalya; L. Boulaamane; Rhizlane Belbaraka; Halima Abahssain; R. Aassab; Noureddine Benjaafar; Brahim El Khalil El Guddari; Omar El Mesbahi; Yassir Sbitti; Mohammed Ismaili; Hassan Errihani

BackgroundConcurrent chemoradiotherapy (CCRT) after breast surgery was investigated by few authors and remains controversial, because of concerns of toxicity with taxanes/anthracyclines and radiation. This treatment is not standard and is more commonly used for locally advanced breast cancer. The aim of our study was to evaluate the efficacy and safety of the concomitant use of anthracycline with radiotherapy (RT).FindingsFour hundred women having operable breast cancer, treated by adjuvant chemotherapy (CT) and RT in concomitant way between January 2001 and December 2003, were included in this retrospective cohort study. The study compares 2 adjuvant treatments using CCRT, the first with anthracycline (group A) and the second with CMF (group B). The CT treatment was repeated every 21 days for 6 courses and the total delivered dose of RT was 50 Gy, divided as 2 Gy daily fractions. Locoregional recurrence free (LRFS), event free (EFS), and overall survivals (OS) were estimated by the Kaplan-Meier method. The log-rank test was used to compare survival events. Multivariate Cox-regression was used to evaluate the relationship between patient characteristics, treatment and survival.In the 2 groups (A+B) (n = 400; 249 in group A and 151 in group B), the median follow-up period was 74.5 months. At 5 years, the isolated LRFS was significantly higher in group A compared to group B (98.7% vs 95.3%; hazard ratio [HR] = 0.258; 95% CI, 0.067 to 0.997; log-rank P = .034). In addition, the use of anthracycline regimens was associated with a higher rate of 5 years EFS (80.4% vs 75.1%; HR = 0.665; 95% CI, 0.455 to 1.016; log-rank P = .057). The 5 years OS was 83.2% and 79.2% in the anthracycline and CMF groups, respectively (HR = 0.708; 95% CI, 0.455 to 1.128; log-rank P = .143). Multivariate analysis confirmed the positive effect of anthracycline regimens on LRFS (HR = 0.347; 95% CI, 0.114 to 1.053; log-rank P = .062), EFS (HR = 0.539; 95% CI, 0.344 to 0.846; P = 0.012), and OS (HR = 0.63; 95% CI, 0.401 to 0.991; P = .046). LRFS, EFS and OS were significantly higher in the anthracycline group where the patients (n = 288) received more than 1 cycle of concurrent CT (P = .038, P = .026 and P = .038, respectively). LRFS and EFS were significantly higher in the anthracycline group within the BCT subgroup (P = .049 and P = .04, respectively). There were more hematologic, and more grade 2/3/4 skin toxicity in the anthracycline group.ConclusionsAfter mastectomy or BCT, the adjuvant treatment based on anthracycline and concurrent RT reduced breast cancer relapse rate, and significantly improved LRFS, EFS and OS in the patients receiving more than 1 cycle of concurrent CT. There were more hematologic and non hematologic toxicities in the anthracycline group.


The New England Journal of Medicine | 2015

Bilateral Lower Palpebral MALT Lymphoma

Issam Lalya; Hamid Mansouri

A 65-year-old man presented with a 2-month history of painless swelling of the lower eyelids bilaterally. Excision biopsy of the palpebral tumor revealed mucosa-associated lymphoid tissue (MALT) lymphoma. Comprehensive physical examination revealed no other lesions.


Journal of Cancer Research and Therapeutics | 2015

Primary non-Hodgkin lymphoma of the vulva in an immunocompetent patient

Hanan El Kacemi; Issam Lalya; Tayeb Kebdani; Noureddine Benjaafar

The primary non-Hodgkin lymphoma of the vulva is a very rare pathological entity. We report a case of 37-year-old patient that presented a germinating ulcerating tumor in the small right vulva. The histology objectified a B lymphoma with a positive CD20 reaction. The patient underwent three typical chemotherapy sessions by rituximab-cyclophosphamide, doxorubicin, vincristine, and prednisone, followed by external radiotherapy on the pelvis and bilateral inguinal lymph nodes areas with an excellent answer and survival without particular events within 36 months of recession. Through this case report, we discuss the diagnostic features of this pathological entity, considering diagnosis and treatment are different compared to other tumors that are commonly found in the vulva.


Bulletin Du Cancer | 2011

Impact psychosocial du cancer sur les adolescents et les jeunes adultes marocains : expérience de l’Institut national d’oncologie de Rabat

Lamiaa Boulaamane; Ismail Essaadi; Issam Lalya; Hind M’rabti; Hassan Errihani

Cancer is an uncommon disease; its imaginary concept is very particularly on adolescent and young adults. It disturbs their lives on the whole. The purpose of this study is to describe the specific psychosocial effects of cancer on adolescent and young adults in Moroccan population in order to help physicians educate and counsel future young patients and their families. During the period from January to July 2009, patients aged between 15 and 30 years with histologically confirmed cancer, were prospectively interviewed by a questionnaire covering socio-epidemiological characteristics, repercussions of disease on physical, psychic, sexual and religious practices. The aim of this study is to determine the impact of cancer, particularly on this young North African population, which is underrepresented in the psychosocial cancer literature.


Journal of Nuclear Medicine and Radiation Therapy | 2018

Combination of Trastuzumab and Radiotherapy in the Adjuvant Treatment of Breast Cancer: A Single Center Experience and Focus on the Cardiac Safety

Ismail Essadi; Issam Lalya; A. Elomrani; Mouna Khouchani; Rhizlane Belbaraka

Background: The main toxicity of trastuzumab, is the alteration of cardiac function. The objective of this study is to examine the acute cardiotoxicity of the combination of Radiotherapy (RT) and trastuzumab in the adjuvant treatment of breast cancer. Materials and Methods: This is a retrospective study of 41 patients followed for localized breast cancer, treated by multimodal strategy combining chemotherapy, Radiotherapy and trastuzumab as adjuvant treatment in the medical oncology department at the Ibn Sina Military hospital of Marrakesh. Results: All patients underwent adjuvant RT on the wall, including 17 on the left side. The median value of the Left Ventricular Ejection Fraction (LVEF) before starting treatment was 64%. The median value of the absolute decrease of LVEF, after the end of RT, was of the order of 4%. All patients received treatment with trastuzumab, during irradiation at usual doses for twelve months. Trastuzumab was stopped temporarily in seven patients, because of the fall in LVEF of more than 10%. After a median followup of 13 months, one patient developed congestive heart failure, imposing the definitive cessation of trastuzumab. Conclusion: The association RT and trastuzumab, does not appear to increase the risk of acute cardiac toxicity, whatever the irradiated side.


Journal of Medical Case Reports | 2018

Radiation-induced chondrosarcoma of the scapula after radiotherapy for lung cancer: a case report and review of the literature

A. Zidane; Adil Arsalane; Mohammed Lahkim; Issam Lalya; Abderrahim Ktaibi; Ismail Essadi

BackgroundRadiotherapy associated with chemotherapy is a well-established treatment modality for locally advanced non-small cell lung cancers. Radiation-induced second malignancies, particularly radiation-induced sarcomas, are rare. Some authors reported a recent increase in the incidence of this rare complication, especially because of the improved prognosis and survival of patients after radiotherapy. Pathogenic mechanisms of radiation-induced sarcomas are poorly understood. However, diagnosis criteria are well established. Treatment options must be discussed and adapted to the patient’s profile. Surgery in irradiated tissue is challenging, with limited treatment options with chemotherapy and radiotherapy.Case presentationWe report the case of a 62-year-old Moroccan man diagnosed as having chondrosarcoma of his right scapula, who was irradiated 10 years ago for stage IIIB non-small cell lung cancer. This case was managed by a complete resection of the tumor with good functional and oncological outcomes. To the best of our knowledge, the scapular location of radiation-induced sarcoma after irradiation for lung cancer has never been described in the literature.ConclusionRadiation-induced sarcoma of the scapula represents a rare situation that must be actively researched to have access to an optimal therapeutic approach.

Collaboration


Dive into the Issam Lalya's collaboration.

Top Co-Authors

Avatar

Hanan El Kacemi

Faculty of Medicine and Pharmacy of Rabat

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

R. Razine

Faculty of Medicine and Pharmacy of Rabat

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge