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Featured researches published by Mazamaesso Tchaou.


Radiology Research and Practice | 2015

Intravenous Contrast Medium Administration for Computed Tomography Scan in Emergency: A Possible Cause of Contrast-Induced Nephropathy

Lantam Sonhaye; Bérésa Kolou; Mazamaesso Tchaou; Abdoulatif Amadou; Kouméabalo Assih; Bidamin N'Timon; Kokou Adambounou; Lama Agoda-Koussema; Komlavi Adjenou; Koffi N'dakena

The goal of this study was to assess risk for CIN after CT Scan during an emergency and to identify risk factors for the patient. Prospective review of all patients admitted to the emergency room (ER) of the Teaching Hospital of Lomé (Togo) during a 2-year period. CIN was defined as an increase in serum creatinine by 0.5 mg/dL from admission after undergoing CT Scan with intravenous contrast. A total of 620 patients underwent a CT Scan in the emergency room using intravenous contrast and 672 patients took the CT Scan without intravenous contrast. Out of the patients who received intravenous contrast for CT Scan, three percent of them developed CIN during their admission. Moreover, upon discharge no patient had continued renal impairment. No patient required dialysis during their admission. The multivariate analysis of all patients who had serial creatinine levels (including those who did not receive any contrast load) shows no increased risk for acute kidney injury associated intravenous contrast (odds ratio = 0.619, p value = 0.886); only diabetes remains independent risk factor of acute kidney injury (odds ratio = 6.26, p value = 0.031).


Case reports in radiology | 2015

Two Unusual Aspects of Posterior Reversible Encephalopathy Syndrome Mimicking Primary and Secondary Brain Tumor Lesions

Mazamaesso Tchaou; Nicoleta Modruz; Lama Agoda-Koussema; Anthony Michelot; Samer Naffa; Véronique Jeudy; Raymond Kaczmarek

The posterior reversible encephalopathy syndrome (PRES) is a rare clinical-radiological entity well described with typical clinical and radiological manifestations. Atypical presentation, especially in imaging, exists. The authors report here two cases of posterior reversible encephalopathy in which imaging aspects were atypical, mimicking, in the first case, hemorrhagic cerebral metastasis of cholangiocarcinoma and, in the second case, a brain tumor. The diagnosis has been retrospectively rectified due to clinical and radiological outcome.


Case reports in radiology | 2015

Tuberculous Abscess of the Chest Wall Simulate Pyogenic Abscess

Lantam Sonhaye; Abdoulatif Amadou; Faré Gnandi-Piou; Kouméabalo Assih; Mazamaesso Tchaou; Bérésa Kolou; Kokou Adambounou; Bidamin N'Timon; Lama Agoda-Koussema; Komlavi Adjenou; Koffi N'dakena

The chest wall tuberculosis abscesses is rare. We present a case of a 27-year-old immunocompetent male who presented chest wall abscesses. Imaging (chest radiographic, ultrasound, and computed tomography) and Ziehl-Neelsen staining demonstrated chest wall tuberculosis abscesses.


European Scientific Journal, ESJ | 2018

Echographie Pédiatrique En Pratique Hospitaliere Au Centre Hospitalier Universitaire (CHU) De Kara Au Togo

Bidamin N’timon; P. Gbande; M. Dagbe; T. Dossouvi; Mazamaesso Tchaou; A. Amadou; Lantam Sonhaye; Lama-Kegdigoma Agoda-Koussema; Komlanvi Adjenou

Purpose: To list pediatric ultrasound exams performed at Kara University Hospital Center in Togo and the pathologies observed. Materials and methods: This was a retrospective and descriptive study of the results of pediatric ultrasound examinations performed in the Department of Radiology and Imaging of Kara University Hospital Center. The study ran from January 1, 2013 to December 31, 2016, over a period of 3 years. Results: The frequency of pediatric ultrasounds was 5.1%. The average age of the patients was 2.16 years with extremes of 1 day to 15 years. There was a male predominance with a sex ratio of 1.4. Abdomino-pelvic ultrasound were the most represented, 92%, followed by cervical ultrasound in 2.6% of cases. Abdominal ultrasound indications were dominated by abdominal pain in 33.6% of cases, followed by palpation of abdominal mass in 15.7%. Cervical ultrasounds were motivated in 5 out of 8 cases by the cervical swelling. Abdomino-pelvic ultrasonography was pathological in 70.1% of cases. Hepatic affections were the most common abdominal abnormality in 37.8% of cases followed by splenic disorders. Hepatic lesions were dominated by European Scientific Journal February 2018 edition Vol.14, No.6 ISSN: 1857 – 7881 (Print) e - ISSN 1857- 7431 444 homogeneous hepatomegaly with 63.2% of cases. Cervical ultrasound was pathological in 6 out of 8 cases. The lesions observed were mainly cervical lymphadenopathy (4 cases out of 6). Conclusion: Ultrasound is a very useful tool in the exploration of pediatric diseases. The abdominal ultrasound is the most performed and hepatic pathologies are the most common.


Molecular and Clinical Oncology | 2017

Breast cancer cases of female patients under 35 years of age in Togo: A series of 158 cases

Tchin Darré; Mazamaesso Tchaou; Koué Folligan; Abdoulatif Amadou; Bidamin N'Timon; Lantam Sonhaye; Abdoul‑Samadou Aboubakari; Koffi Amegbor; Koffi Akpadza; Gado Napo Koura

Breast cancer in young female patients represents a public health problem in developing countries. The objectives of the study were to study the epidemiological and histological characteristics of breast cancer in female patients under 35 years of age. This was a retrospective analytical study of a series of 158 cases of breast cancer in female patients under 35 years of age, conducted at the University Teaching Hospital of Lomé between 2000 and 2015. A total of 158 cases were collected, representing 36.2% (436) of all breast cancer cases. The average age of the patients was 30.9 years (range, 16-35 years). A family history of breast cancer at the 1st or 2nd degree was identified in 13.9% of cases. Genetic mutation studies were carried out for 7 patients, 5 of which revealed mutations (4 BRCA1 and 1 BRCA2). According to the locus, the cancer was located preferentially in the left breast in 88 cases (55.7%). Malignant mammary lesions were epithelial tumors (n=144 cases, 91.1%), infiltrating (n=125 cases, 79.1%) and non-infiltrating (n=19 cases, 12.0%). The other histological groups consisted of 8 cases of sarcomas (5 cases of angiosarcoma, 2 cases of fibrosarcoma and 1 case of Kaposis sarcoma), 5 cases of lymphomas and one case of melanoma. Not otherwise specified infiltrating ductal carcinomas were SBR II and III in 43.2 and 35.2% of cases, respectively. The tumors classified as T4 were the most frequent (30.4%). Regarding the lymph node status, lymph node metastasis was noted in 22.8% of cases. Studies of hormone receptors were carried out in 23 patients and were positive for 11 patients: Estrogen receptor (ER)+plus progesterone receptor (PR)+(7 patients), ER+PR-(4 patients). Of the aforementioned 8 cases of sarcoma, 5 were angiosarcoma. The lymphomas were predominantly Burkitts type for 4 cases. Mammary ultrasonography was performed in 45.6% of the patients and 54.4% underwent the combined ultrasonography and mammography. Ultrasound identified one or more sign of malignancy in 67 patients (42.4%), and combined ultrasonography and mammography classified 51.9% of lesions in BIRADS 4 and 5. The incidence of breast cancer in young Togolese patients is high. It is a disease distinguished by a delay in diagnosis, which contributes to the high number of cases that initially diagnosed at an advanced stage, particularly the high histo-prognosis grades of infiltrating ductal carcinoma. These results indicate a genetic origin; therefore, a thorough investigation into genetic mutations should be carried. In addition, further collaborative studies are required to verify these results.


Medical Imaging and Radiology | 2017

Normative dimensions of lumbar canal and dural sac by computer tomography in Togo

Abdoulatif Amadou; Lantam Sonhaye; Yaovi Nano James; Kouméabalo Assih; Atcha Kahabilou Agbangba; Wattara G; Mazamaesso Tchaou; Bidamin N’timon; Komlanvi Adjenou

Abstract Objective: To determine through CT scan, the biometrics of the spinal canal and lumbar dural sac of adults in Togo. Material and method: Twelve month prospective study at Campus


Case reports in radiology | 2017

Breast Abscessed Cancer in Nonlactating Women in Tropical Environment: Radiological, Bacteriological, and Anatomopathological Features about 3 Cases

Mazamaesso Tchaou; Tchin Darré; Ayi Kossi Amavi; Kokou Kouliwa Kanassoua; Bidamin N’timon; Lantam Sonhaye; Lama-Kegdigoma Agoda-Koussema; Komlavi Adjenou

The association of breast cancer and abscess is rare in daily practice. The authors report a short series of 3 cases of cancer of the breast in nonlactating women presented as breast abscess, reviewing aspects in radiology (ultrasound and mammography), correlating them with the histopathology findings and the bacteriological profile of the isolated germs.


Case reports in radiology | 2017

Primary Neuroendocrine Breast Carcinoma in a 13-Year-Old Girl: Ultrasonography and Pathology Findings

Mazamaesso Tchaou; Tchin Darré; Koué Folligan; Akomola Sabi; Lantam Sonhaye; Azanledji Boumé; Akila Bassowa; Solange Adani-Ifé; Gado Napo-Koura

Neuroendocrine carcinoma (NEC) of the breast is a rare disease and has been scarcely reported by African authors. The authors report a case of breast NEC in a 13-year-old African girl initially diagnosed as an atypical adenofibroma by ultrasonography. Ultrasound-guided biopsy and conventional histological examination indicated two potential diagnoses: primary malignant non-Hodgkins lymphoma and undifferentiated carcinoma. According to immunohistochemistry performed on paraffin blocks in France, infiltrating ductal carcinoma with a strong neuroendocrine component was confirmed by CD56, CD57, and chromogranin A markers.


Case reports in pathology | 2016

Diagnostic Difficulties in Pathological Laboratories in Developing Countries: A Case Report of Differentiated Squamous Cell Carcinoma in a Young Togolese Woman.

Tchin Darré; Lantam Sonhaye; Mazamaesso Tchaou; Abdoul-Samadou Aboubakari; Bingo K. M’Bortche; Kofi Amégbor; Gado Napo-Koura

We report a case of poorly differentiated squamous cell carcinoma of the vulva induced by human papillomavirus in a 23-year-old woman, in whom we experienced diagnostic difficulties.


European Scientific Journal, ESJ | 2016

Revue Des Doses d’Exposition Et Des Methode d’Optimisation En Tomodensitometrie (TDM) De l’Enfant Au Togo

Mazamaesso Tchaou; G.N. Gnakadja; Bidamin N’timon; Lantam Sonhaye; A. Amadou; Lama-Kegdigoma Agoda-Koussema; Komlanvi Adjenou; Koffi N’Dakena

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