BackgroundMetaplastic carcinoma encompasses a group of neoplasms characterized by differentiation of the neoplastic epithelium into squamous cells and/or mesenchymal-looking elements. Spindle cell carcinoma is a rare variant of this special histological type. Its prognosis remains poor, with a high rate of local recurrence and distant metastasis. To date, only a small number of cases have been described. There is no clear agreement on this histological subtype.Case presentationWe report a case of a 53-year-old Moroccan woman who consulted our institution following palpation of a nodule of the left breast. Mammography in combination with breast ultrasonography revealed a lesion classified as Breast Imaging Reporting and Data System 4 with microcalcification. The patient was diagnosed with spindle cell carcinoma of the breast. The diagnosis was based primarily on histological and immunohistochemical studies of the breast biopsy and secondarily on the surgical specimen. No local or distant metastasis was found. The treatment used was total surgical excision followed by radiotherapy.ConclusionsWe describe the features (epidemiological, clinical, histological, immunohistochemical, and therapeutic outcomes) of our patient’s case and compare them with literature data.

Les tumeurs des glandes salivaires sont rares, elles constituent 3% des tumeurs de la tête et du cou et 0,6% des tumeurs humaines. La pathologie tumorale de la glande sous-maxillaire est moins fréquente que celle de la parotide et pose autant de problèmes aussi bien diagnostiques que thérapeutiques, surtout l'opportunité de la radiothérapie post-opératoire et l'attitude vis-à-vis des récidives. L'objectif de notre étude est de discuter les problèmes diagnostiques, les résultats thérapeutiques et évolutifs que présentent ces tumeurs afin d'en dégager l'attitude thérapeutique la plus appropriée en se basant sur une étude rétrospectif incluant une série de 25 cas de tumeurs de la glande sous maxillaire colligées aux services d'orl et au service de radiothérapie du CHU MED VI de Marrakech sur une période allant de Janvier 2009 jusqu'au décembre 2014. L’étude a concerné 09 hommes et 18 femmes. La moyenne d’âge était de 48 ans (25 - 71 ans), La tuméfaction sous mandibulaire était le principal symptôme révélateur. Le caractère douloureux a été signalé par 09 patients. Une seule paralysie du rameau mentonnier du nerf facial a été objectivée au moment de l'examen chez un malade. Les adénopathies cervicales ont été retrouvées chez 09 patients. La localisation jugulo-carotidienne haute homolatérale est la plus fréquente. Sur le plan thérapeutique, une sous maxillectomie a été réalisée chez 24 malades dont 02 réopéré pour récidive d'un adénome pléomorphe et un patient pour un carcinome adénoïde kystique. 3 tumeurs malignes n'ont pu bénéficier d'aucun traitement chirurgical du fait du caractère explosif de la lésion Les résultats histopathologiques ont montré une répartition largement dominée par l'adénome pléomorphe pour les tumeurs bénignes (66,66% des tumeurs bénignes), et le carcinome adénoïde kystique pour les tumeurs malignes (37,5% des tumeurs malignes). Neuf malades de notre série ont été irradiés en post opératoire. Deux tumeurs bénignes ayant présenté une première récidive sont toutes des adénomes pléomorphes, 04 tumeurs malignes ont présenté une première récidive (03 carcinome adénoïde kystique, 01 carcinome epidermoide) et un carcinome adénoïde kystique a présenté une deuxième récidive après un complément radiothérapeutique. La pathologie tumorale de la glande sous-maxillaire est complexe, dominée par les tumeurs malignes, elle pose des problèmes diagnostiques et thérapeutiques; Son diagnostic est orienté par des arguments cliniques et radiologiques, repose sur l'analyse anatomopathologique de la pièce d'exérèse opératoire. Un retard diagnostic joint a un traitement initial inadéquat assombrit d'avantage son pronostic.

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he treatment of locally advanced non-metastatic laryngeal squamous cell carcinoma is very controversial. Total laryngectomy associated with lymph node dissection and adjuvant radiotherapy with or without chemotherapy is considered the gold standard treatment. The functional impairment on voice and breathing that result from this approach called for discussion of preservation of this organ. Since the publication of the Veterans' Study in 1991 on laryngeal cancer and the confirmation by subsequent randomized trials of an equivalent survival, treatment strategies for advanced laryngeal carcinoma have shown significant changes in favour of an organ-sparing approach by chemoradiotherapy. Purpose: We aim to assess the outcome of locally advanced non-metastatic laryngeal cancer classified as (T3NxM0 -T4NxM0) by comparing the carcinological results and the survival at one and three years between two cohorts of patients, one treated by surgery and the other by organ preservation protocols. Between the two series, we will analyze the carcinological outcomes, local control, local and lymph node recurrence, distant metastases, overall survival, and recurrence-free survival, lymph Node-free survival, and metastatic evolution. Results: 106 patients were treated for locally advanced squamous cell laryngeal carcinoma of the ENT department and radiation Oncology department of Mohamed VI University hospital between January 2014 and December 2018; Sixty-three patients in surgery group I and forty-three patients in group II went on organ sparing approach by radiochemotherapy. The two groups were compared according to local tumor control, local recurrence, lymph node recurrence, and distant metastasis. Early deaths and patients who were lost to follow-up were excluded from this analysis. The average age was 61 years in the surgery group versus 60 years in the RCC. The male predominance was marked in both treatment groups, 102 were male (96.23%) and only 4 female (3.77 %.).88.7% were smokers with an average consumption of 26.4 package-years. Only 15% of our smoking patients reported a withdrawal period estimated at two months on average. Alcohol-smoking synergy was observed in 19% of cases. In the surgery group, 47 patients or 83.9% had local tumor control compared to 12 patients or 41.4% in the radio-chemotherapy group with a statistically significant difference p<0.0001. Local recurrence was observed in 8 patients (14.5%) in the surgery group against 6 patients (46.2%) in the radio-chemotherapy cohort with a p= 0.02. We noted that there was a large number of missing data (30 patients) in the radio-chemotherapy group due to the large number of patients who were lost to follow-up, early deaths, and patients who did not progress well after treatment. There was no statistically significant difference between the two groups in terms of lymph node recurrence and metastatic progression. At 1 year, Overall survival was 87.9% of patients were alive (n=51 out of 58) in the surgery arm versus 60.6% (n=20 out of 33) in the radio-chemotherapy arm. At 3 years overall survival was 77.5% for surgery versus 48.4% for radiotherapy (p= 0.005).Lymph node free recurrence and metastatic free progression at 1 year was 94.5% in the surgery group compared with 84.6% for radio-chemotherapy. Survival at 3 years was 85.4% versus 53.8% respectively (p=0.05).In the chemoradiation therapy group, there were 30 missing data due to a large number of deaths and loss of the follow-up during the first year without any indication of the presence or absence of recurrence, compared to 8 missing data for the radio-chemotherapy group. Conclusion: The optimal treatment for advanced squamous cell carcinoma of the larynx is highly controversial. Total laryngectomy associated with cervical lymph node dissection remains the gold standard of treatment but organ-sparing protocols are as effective as surgical therapy. However, in our study, total laryngectomy plus lymph node dissection showed better survival outcomes in terms of locoregional control and significantly increased overall survival and recurrence-free survival. This makes surgery the treatment of choice in the management of locally advanced non-metastatic laryngeal cancer in our single institutional Moroccan setting. Possible reasons for these results may be poor patient selection, inadequate follow-up, incomplete treatment, and interrupted treatment sessions but also the long delay in consultation. Patients and professionals should be made aware of the small but significant disadvantage of the non-surgical therapy approach as part of the shared decision-making process when selecting treatment. Both surgery and radio-chemotherapy can be effective if the treatment indications are well directed. These indications depend on several many several parameters and should be considered at the multidisciplinary consultation meetings and adapted on a case-by-case basis.

Background: Colorectal cancer (CRC) is a global public health problem, an estimated of 1.4 million cases were diagnosed worldwide in 2012. Studies in health and nutrition confirmed that dietary factors were strongly associated with CRC risk. Aim: The objective of this empirically study was to reveal unobserved dietary profiles that were associated favorably or unfavorably with CRC risk in Moroccan study population. Methods: This case-control study included a total of 2906 participants in five centers, 1453 cases and 1453 controls, and was gender, age and center matched. Statistical exploratory data reduction methods were performed in this study population based on a specific scientific hypothesis linking dietary behavior and colorectal cancer risk. Principal component analysis (PCA) was applied separately in cases and in controls as individuals and with FFQ nutritional group's heads items as variables. The correlation matrix of food variables was examined to explain most of the variation in the data, reducing a large number of food variables to a smaller set that captures the major dietary factors differences in Moroccan population. Results: Three alimentary profiles were identified for controls based on three principal component analysis, which the first one was highly positive with high cereals, fruits and nuts, legumes, fish, olive oil, dairy products and legumes consumption, and was highly negative with an increasing consumption of poultry and red meat. This component explained 26.5% of the variance in initial data and described a healthy pattern characterized with high fiber intake. In opposite, five principal components were identified for cases that indicated five nutritional profiles with a predominance of dairy products, nuts, fish consumption and low legumes, olive oil and fruits intake: its explained 15.37% of total variance. Conclusion: PCA analysis is a multidimensional factor analysis method that was used in this epidemiologic study to describe the variance in our big database in relation with CRC risk among Moroccan people. This method needs a supervised analysis such as linear discriminant analysis (LDA) to give interpretation and prediction models of CRC risk related to nutritional behavior among this study population.