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Objective: This study aimed to describe anatomic variants of sphenoidal sinuses and adjacent structures. Methods: A retrospective and descriptive study was carried out at The National and University Teaching Hospital Hubert Koutoukou Maga (CNHU-HKM), of Cotonou in Benin from November 1st to December 31st. A review of CT scans skull was done for the subjects aged at least 16 years old. Anatomic variants of the sphenoid sinuses and adjacent structures have been investigated. Results: 225 CT scans of skull were analyzed. The sellar type was the most common type of pneumatization of sphenoid sinuses (74.7%). Pneumatization of anterior clinoid processes of greater and lesser wings of the sphenoid and of pterygoid processes was observed in 7.1%; 4.6%; 3.3% and 7.3%; respectively. Protrusion of carotid canals and optic canals, maxillary and vidian nerves were observed in 48.3%; 13.1%; 18% and 9.5%; respectively. Conclusion: Risky anatomic variants of the sphenoid sinuses and adjacent structures are also described by CT-scan among Beninese. Before any surgery and to avoid bad outcome, a precise approach of these risky anatomic variants must be carried out by using CT-scan.

Background: Childhood cerebral malaria is one of the most frequent complications of malaria, with high morbidity and mortality. Raised Intracranial Pressure (ICP) is currently recognized as a fundamental element of the severity of that disease. This study aims to look into the prognostic role of the sonographic measurement of optic nerve sheath diameter (ONSD) in the context of that disease. Methods: This study was conducted in the pediatric and imaging departments of the University Hospital Center of Parakou in Republic of Benin in West Africa. This was a descriptive cross-sectional study with a prospective data collection conducted over a period of 6 months, from March 1st to August 31st, 2014. There were two groups of children with severe malaria and conscious impairment: one with unrousable coma or Cerebral Malaria (Group 1) and the other without unrousable coma (Group 2), benefitting from ONSD sonographic measurement. ONSD was measured 3 mm behind the papilla. Correlation between depth of coma, outcome and ONSD measure on ultrasound was investigated. Results: Group 1 consisted of 37 children and Group 2 of 50 children, i.e. a sample of 87 children. The mean age was 27.21 ± 20.11 months and sex ratio (Male/Female) estimated at 0.89. The average ONSD of the sample was 4.39 ± 0.94 mm with a significant difference (p = 0.0001) between Group 1 (5.09 ± 1.09 mm) and Group 2 (3.87 ± 0.17 mm). Raised ICP prevalence was 48.28% with a significant difference between Group 1 (83.78%) and Group 2 (22%) with p < 0.0001. ONSD was higher in children with unfavorable clinical outcome than in those cured (p = 0.0012

Objective: Breast cancer is the most common female cancer in the world. The prognosis depends on whether metastasis is present or not. The objective of this study was to provide an overview of the CT scan aspects identified during the evaluation of breast cancer extension in the Radiology department of the Teaching University Hospital of Hubert Koutoukou Maga (CNHU-HKM) in Cotonou in Benin. Materials and methods: It was a descriptive study with retrospective collection, conducted from January 1, 2018 to January 31, 2019 (13 months), in the Radiology department of CNHU-HKM. It focused on patients referred for a chest-abdominal-pelvic computed tomography (PET) scan, as part of an extension assessment for breast cancer. Results: During the period of the study, 40 chest-abdominal-pelvic CT scans were compiled, of which 38 (95%) were women and 02 men (5%), and among which 23 were metastatic, accountings for a prevalence of 57.5%. The average age was 51.22±16.33 with extremes of 30 and 83 years old. Among our patients, 32 (80%) had undergone a CT scan for an initial diagnostic of extension assessment, and 08 (20%) for the therapeutic response assessment. According to the TNM classification, T4 tumors accounted for 27.5% (11 cases). Lymph node involvement was found in 18 cases (43.90%), accounting for 12 (30%) of N1 and 6 (15%) of N3. The most commonly found metastatic sites were the lung in 25% followed by the pleura and the liver with equal percentages (10%). The metastases CT scan aspect was typically a carcinomatous lymphangitis appearance; fluid pleural effusions; hypodenses, hypovascular nodules hepatics; osteolytic or mixed bone damage and peritoneum, especially fluid effusion associated with peritoneal nodules. Conclusion: The frequency of breast cancer metastases is high in Benin. The most commonly found metastatic sites on scanner in descending order are the lungs, liver and bones.

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