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El zaitouni S, Laraqui A, Ghaouti M, Benzekri A, Kettani F, El Annaz H, Abi R, Tagajdid MR, El Kochri S, Lahlou IA, Ameziane El Hassani R, Ennibi K. Mutation status of full RAS and BRAF in 169 Moroccan patients with colorectal cancer. J Clin Oncol 2023. [DOI: 10.1200/jco.2023.41.4_suppl.216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
216 Background: Morocco has the highest cancer mortality rate in MENA Countries. Colorectal cancer (CRC) is classified as the first digestive cancer and remains a burden in Morocco. According to the data on GLOBOCAN 2020, there were 4324 new CRC patients and 2374 deaths, accounting for 7.3% and 2.8% of all cancers, respectively. Our study aimed to investigate the frequency of the full RAS ( KRAS, NRAS) and BRAF genes in CRC patients from Morocco and their possible associations with clinico-pathological features. Methods: Archived FFPE of 169 CRC patients were screened for KRAS, NRAS and BRAF mutations by Idylla technology. Results: Full RAS mutations were identified in 46.1% (42% in KRAS, 4.1% in NRAS). In KRAS gene, exon 2 mutations accounted for 84.5% (69% in codon 12, 15.5 % in codon 13). Within codon 12, KRAS G12D and G12C were more frequently detected (29.5% and 16.9%, respectively). Detection of KRAS mutations, and particularly G12D and G12C subtypes, are of large significance for CRC patients, have possible therapeutic implications. Within codon 13, the most frequently observed mutation was G13D (15.5 %). Outside exon 2, the mutation rate was 35.1% (8.4% in exon 3 and 26.7% in exon 4). Concurrent KRAS mutations were identified in 8 cases, which suggests that multiple mutations can occur in the same or different codons. In NRAS gene, the mutation rates of exon 2 and 3 were 71.4% and 57.1% respectively. G13V and Q61K were the most common mutations, accounting for 28.6 % of each. Concurrent KRAS mutations were identified in 2 cases. Of the 169 samples, mutations in the BRAF gene at V600E were detected in 3.5%. Combined mutational analysis of KRAS, NRAS and BRAF was able to identify 49.6% of patients with CRC as likely non-responders to anti-EGFR therapy. There was an association between KRAS mutations and age, which were higher in the age group>50 years old (p=0.022). Tumors in the left colon (36.61%) are more likely to harbor mutations in KRAS than the rectum (19.7%) in both sexes. The adenocarcinoma well-differentiated was the most frequent for patients with KRAS mutations (54.9%). No significant clinicopathologic correlations with NRAS and BRAF mutations were identified. Conclusions: Beside established anti-CRC treatment, better understanding of the causality of CRC can be established by combining epidemiology and genetic/epigenetic on CRC etiology in Morocco. This approach may be able to significantly reduce the burden of disease in the country. Moreover, the Moroccan government should develop policy on CRC prevention and public health programs which may serve as a feasible setting to increase public awareness on lifestyle risk factors.
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Affiliation(s)
- Sara El zaitouni
- Laboratory of Biology of Human Pathologies, Genomic Center of Human Pathologies, Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
| | - Abdelilah Laraqui
- Sequencing Unit, Laboratory of Virology, Center of Virology, Infectious and Tropical Diseases, Mohammed V Military Teaching Hospital, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Meriem Ghaouti
- Department of Pathology, Nations-Unites Pathology Center, Rabat, Morocco
| | - Asmae Benzekri
- Department of Pathology, Nations-Unites Pathology Center, Rabat, Morocco
| | - Fouad Kettani
- Department of Pathology, Nations-Unites Pathology Center, Rabat, Morocco
| | - Hicham El Annaz
- Sequencing Unit, Laboratory of Virology, Center of Virology, Infectious and Tropical Diseases, Mohammed V Military Teaching Hospital, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Rachid Abi
- Sequencing Unit, Laboratory of Virology, Center of Virology, Infectious and Tropical Diseases, Mohammed V Military Teaching Hospital, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Mohamed Rida Tagajdid
- Sequencing Unit, Laboratory of Virology, Center of Virology, Infectious and Tropical Diseases, Mohammed V Military Teaching Hospital, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Safae El Kochri
- Sequencing Unit, Laboratory of Virology, Center of Virology, Infectious and Tropical Diseases, Mohammed V Military Teaching Hospital, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Idriss Amine Lahlou
- Sequencing Unit, Laboratory of Virology, Center of Virology, Infectious and Tropical Diseases, Mohammed V Military Teaching Hospital, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Rabii Ameziane El Hassani
- Laboratory of Biology of Human Pathologies, Genomic Center of Human Pathologies, Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
| | - Khalid Ennibi
- Sequencing Unit, Laboratory of Virology, Center of Virology, Infectious and Tropical Diseases, Mohammed V Military Teaching Hospital, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
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Harmouchi H, Hamraoui Y, Lakranbi M, Belliraj L, Lamouime FZ, Ghaouti M, Ouadnouni Y, Smahi M. Open window thoracostomy for a chronic calcified pleural empyema in the setting of a closed chest trauma. SAGE Open Med Case Rep 2021; 9:2050313X211025437. [PMID: 34178354 PMCID: PMC8207291 DOI: 10.1177/2050313x211025437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 05/27/2021] [Indexed: 12/02/2022] Open
Abstract
This case report is a chronic calcified pleural empyema in a patient who suffered a closed chest trauma 30 years ago. The first goal is to demonstrate how the closed chest trauma caused a bronchopleural fistula of the calcified pleural empyema, since the patient began to report continued purulent sputum after his trauma with weight loss and the appearance of an air-fluid level in the chest CT scan (no pleurocutaneous fistula in the clinical examination). The second goal is to reveal the rule and the interest of an open window thoracostomy in the management of chronic calcified pleural empyema, since a decortication remains difficult to perform in cases like this one.
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Affiliation(s)
- H Harmouchi
- Department of Thoracic Surgery, Center Hospitalo-Universitaire Hassan II-Fez, Fez, Morocco
| | - Y Hamraoui
- Faculty of Medicine and Pharmacy, Sidi Mohamed Ben Abdallah University, Fez, Morocco
| | - M Lakranbi
- Department of Thoracic Surgery, Center Hospitalo-Universitaire Hassan II-Fez, Fez, Morocco.,Faculty of Medicine and Pharmacy, Sidi Mohamed Ben Abdallah University, Fez, Morocco
| | - L Belliraj
- Department of Thoracic Surgery, Center Hospitalo-Universitaire Hassan II-Fez, Fez, Morocco
| | - F Z Lamouime
- Department of Thoracic Surgery, Center Hospitalo-Universitaire Hassan II-Fez, Fez, Morocco
| | - M Ghaouti
- Department of Thoracic Surgery, Center Hospitalo-Universitaire Hassan II-Fez, Fez, Morocco
| | - Y Ouadnouni
- Department of Thoracic Surgery, Center Hospitalo-Universitaire Hassan II-Fez, Fez, Morocco.,Faculty of Medicine and Pharmacy, Sidi Mohamed Ben Abdallah University, Fez, Morocco
| | - M Smahi
- Department of Thoracic Surgery, Center Hospitalo-Universitaire Hassan II-Fez, Fez, Morocco.,Faculty of Medicine and Pharmacy, Sidi Mohamed Ben Abdallah University, Fez, Morocco
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Abstract
Metastases to the kidney are a rare entity. Among solid tumors, it is known that lung and colorectal cancers can metastasize to the kidney. Renal metastases from cervical cancer are exceptional; only 12 cases were previously reported. We report a case of a right renal metastasis from a cervical squamous cell carcinoma, occurring in the context of a metastatic relapse two years after completing primary treatment.
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Affiliation(s)
- Amine Bazine
- Department of Radiotherapy, Military Hospital Mohamed V, Rabat, Morocco
| | - Hanae O Zniber
- Department of Gynecology-Obstetrics M1, Ibn Sina University Hospital Center, Rabat, Morocco
| | | | - Aziz Bazine
- Department of Medical Oncology, Military Hospital Moulay Ismaïl, Meknès, Morocco
| | - Aziz Baydada
- Department of Gynecology-Obstetrics, Ibn Sina University Hospital Center, Rabat, Morocco
| | - Hassan Sifat
- Department of Radiotherapy, Military Hospital Mohamed V, Rabat, Morocco
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Naciri I, Meziane M, Benzekri L, Ghaouti M, Senouci K, Hassam B. [Recurrent postpartum pyoderma gangrenosum and fatal cardiomyopathy]. Ann Dermatol Venereol 2017; 145:261-265. [PMID: 29223609 DOI: 10.1016/j.annder.2017.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 08/10/2017] [Accepted: 11/02/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND We report a case of recurrent post-partum pyoderma gangrenosum (PG) complicated by post-partum cardiomyopathy (PPCM). PATIENTS AND METHODS A 23-year-old woman presented with a previous medical history of aseptic abscess of the left breast in her fourth pregnancy, which developed after surgical drainage of an inflammatory ulceration treated by atraumatic topical care. During her fifth pregnancy, the patient presented a large and painful ulceration in relation to the scar of the Caesarean section, despite the introduction of broad-spectrum antibiotic therapy. Bacteriological samples were negative. Histological examination militated in favor of PG. One week after initiation of corticosteroid therapy, the patient suddenly showed signs of heart failure. Based on trans-thoracic echocardiography PPCM was diagnosed, and the outcome was fatal. DISCUSSION This observation raises the question of the relationship between PG and pregnancy and describes the association of PG and PPCM. PG occurs rarely during pregnancy and it may be induced by the rise in G-CSF levels found in pregnant women. The association with PPCM seen in our patient could have been due to the development of an anti-angiogenic climate at the end of pregnancy, together with inflammatory myocardial aggression linked to the PG.
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Affiliation(s)
- I Naciri
- Service de dermatologie et vénérologie, faculté de médecine et de pharmacie, université Mohammed V, centre hospitalier universitaire Ibn Sina, BP 6527, 10100 Rabat, Maroc.
| | - M Meziane
- Service de dermatologie et vénérologie, faculté de médecine et de pharmacie, université Mohammed V, centre hospitalier universitaire Ibn Sina, BP 6527, 10100 Rabat, Maroc
| | - L Benzekri
- Service de dermatologie et vénérologie, faculté de médecine et de pharmacie, université Mohammed V, centre hospitalier universitaire Ibn Sina, BP 6527, 10100 Rabat, Maroc
| | - M Ghaouti
- Centre d'anatomie pathologique des Nations Unies, rue Ibn Hanbal, 10080 Rabat, Maroc
| | - K Senouci
- Service de dermatologie et vénérologie, faculté de médecine et de pharmacie, université Mohammed V, centre hospitalier universitaire Ibn Sina, BP 6527, 10100 Rabat, Maroc
| | - B Hassam
- Service de dermatologie et vénérologie, faculté de médecine et de pharmacie, université Mohammed V, centre hospitalier universitaire Ibn Sina, BP 6527, 10100 Rabat, Maroc
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