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Objective: To assess the importance of incidental extraspinal findings on Magnetic Resonance Imaging of the lumbar spine in two hospital facilities. Materials and Methods: It was a descriptive and retrospective study from November 2015 to March 2016. The records of patients who had done a Magnetic Resonance Imaging (MRI) scan of the lumbar spine were re-read in search of incidental findings. The incidental findings found were classified using Colonography Reporting and Data System(C-RADS) classification of extracolonic lesions to assess clinical significance. The prevalence of incidental findings was calculated for each facility, as well as the distribution according to age, the organs involved and the clinical importance. A non-detection rate was calculated by confronting the findings of the study with the original reports. Results: The prevalence of incidental findings was respectively 33% (19 out of 36) in Jordan Medical Center (JMC) in Yaounde and 27.74% (106 out of 292) in Jacques Monod Hospital. The extraspinal incidental findings were classified mainly as extracolonic 2 (E2): 58% in each facility. The percentage detection of incidental findings was 5% at JMS and 1.7% at Jacques Monod Hospital. Conclusion: Extraspinal incidental findings are frequent in both hospitals. However, the rate of detection remains very low.

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Chest investigation is common in hospital practice. Chest X-ray is readily available and usually the first chest investigation. Thoracic CT scan constitutes an alternative and complimentary chest investigation. It is currently the most efficient investigation for the chest and its contents. Objectives: To evaluate the relevance of chest CT Scan requests in two university teaching hospitals in Cameroon. Material and Methods: We conducted a cross-sectional, retrospective and descriptive study at the Radiology and imaging units of the Yaounde Central Hospital and the Yaounde University Teaching Hospital Centre. Included in our study were files of patients who had a chest CT scan investigation during three years. Results: We had a study population of 323 subjects. The age interval was 23 months to 91 years old. Pulmonologist were the most prescribers with 27.2%. We had 80% conformity of indications with French Society of Radiology (FSR) standards. 50 over of 323 indications were not recommended by the FSR. Conclusion: There is a conformity rate of 80% between indications and the FSR recommendations.

Background: Research studies made in Cameroon on compliance and relevance in the various areas of imaging, show the failure to comply with administrative and clinical criteria. These research studies led to recommendations meant for result amelioration. However, the orthopantomogram (OPT) field remains less studied in that regard in Cameroon. Aim: Evaluate the relevance and compliance of examination requests for panoramic dental radiography. Setting and Design: It is a descriptive cross-sectional study with a consecutive sample of dental panoramic requests identified during the study period in 4 radiology centres of Yaoundé. Material and Methods: Variables studied here were the validity criteria of imaging examination. Request: Five of which are of administrative order (date of the request, requesting department, patient's identity, patient's age, applicant's identity) and three of clinical order (anatomic region, reason for the examination and the purpose of the examination). Statistical Analysis: Chi-squared test was used with confidence interval of 95%. Results: Patient's identity (name) was the criteria carrying the highest information (98.9%), followed by the name of the applicant physician (91.6%). Out of 179 requests analysed, 8.6% had complete information. 46.4% of requests had no indications. Dental surgeon was the top prescriber with a total of 112 (62.6%). Conclusion: The quality of dental panoramic requests was not optimal in Yaounde, with lack of precision mostly noted at the level of clinical criteria.

Introduction: The aim of this work was to compare the radiological lesions during bacilliferous tuberculosis between HIV positive patients under ARV treatment and HIV negative patients. Methodology: This was a, descriptive and comparative study conducted from December 1, 2018 to May 31, 2019 (6 months) at Jamot Yaoundé Hospital. Smearpositive tuberculosis patients meeting our inclusion criteria were enrolled in the study. We split them into two groups, HIV + and HIV -. The comparison of the data was made by the Chi² test, that of the quantitative data with the Student's T test. A p-value less than 0.05 was considered significant. Results: In total, we recruited 145 patients divided into 2 groups of 63 HIV + patients and 82 HIV-patients. The radiological peculiarities found in HIV were as follows: Normal radiography was more frequent, P = 0.004. Interstitial syndrome was less common. Bilateral involvement was predominant. Right localization and upper lobe lesions were less frequent, P <0.05. Micronodular lesions were more frequent, P <0.05. During the alveolar syndrome, the left side was less affected and the upper lobe was the most; p <0.05. Cavitary, pleural, mediastinal and bronchial syndromes did not show statistically significant differences. Conclusion: Although a normal x-ray does not exclude pulmonary tuberculosis, the x-ray lesions are multiple but are dominated by the interstitial syndrome. In patients immunocompromised to HIV, bilateral involvement predominates. The right localization and lesions of the upper lobe are less frequent. Micronodular lesions are frequent.

Introduction: The aim of this work was to compare the epidemiological, clinical and radiological aspects during bacilliferous tuberculosis between HIV positive patients under ARV treatment and HIV negative. Methodology: This was a prospective, descriptive and comparative study conducted from December 1, 2018 to May 31, 2019 (6 months) at Jamot Yaoundé Hospital. Smear-positive tuberculosis patients meeting our inclusion criteria were enrolled in the study. We split them into two groups, HIV + and HIV - Data were analyzed using SPSS 23.0 software. The comparison of the data was made by the Chi² test, that of the quantitative data with the Student's T test. A p-value less than 0.05 was considered significant. Results: For HIV positive, the mean age was 41.1 ± 14.4 years versus 39.8 ± 14.8 years in the HIV negative group. HIV + patients aged 35 to 44 were more represented [49.5 versus 17.1% (P <0.0001)]. The sex radio was 1.03 for the HIV positive versus 3.31 for the HIV negative group. The HIV + group had fewer single people, had more history of tuberculosis (22.2 versus 9.8%). HIV + patients were more likely to have a WHO performans status score 4, and were more febrile [96.8 versus 85.4% (p = 0.021)]. The normal chest x-ray was more common. Interstitial and alveolar syndromes were less common. Conclusion: The proportions of both sexes were almost identical. Almost half were 35 to 44 years old They had more history of tuberculosis. A WHO score of 4 and were generally febrile. Chest x-ray was often normal.Interstitial and alveolar syndromes were less common.