ABSTRACT
Bisphosphonate-related osteonecrosis of the jaw (BRONJ) is a morbid adverse effect characterized by the exposure of the alveolar bone. It presents with distinctive radiological features that not only guide diagnosis but also help detect complications, as illustrated in our patient. The purpose of this presentation is to demonstrate the radiological semiology through our case to familiarize radiologists with this pathology and briefly remind them of the pathophysiological mechanisms behind this side effect.

ABSTRACT
Neurosarcoidosis is a rare and potentially severe manifestation of sarcoidosis. Its diagnosis is particularly challenging due to its highly variable clinical presentation and its ability to mimic other neurological disorders. This article aims to provide a comprehensive overview of the radiological features of this condition through a case report, while emphasizing the role of advanced imaging techniques (MRI and PET) in diagnosis and follow-up.

ABSTRACT
This case presents a unique anatomical and inflammatory interplay interplay between Bertolotti’s syndrome and axial spondyloarthritis in a young adult with chronic back pain. MRI revealed a Type IIa lumbosacral transitional vertebra with pseudo articulation-related marrow oedema, alongside sacroiliitis with active inflammatory features. This radiological “double act” underscores the complexity of distinguishing mechanical anomalies from inflammatory pathology in the spine. By fusing clinical insight with high-resolution imaging, this case illustrates how modern diagnostics can decode overlapping pain generators—ensuring that treatment targets both structure and inflammation in a personalized, precision-driven approach to back pain.

ABSTRACT
Congenital elevation of the scapula, also known as Sprengel's malformation, is a rare congenital anomaly of the shoulder girdle secondary to a defect migration of the scapula during embryonic life. The pathophysiology remains poorly understood. Diagnosis is made in early childhood. Imaging, CT in particular with multi-planar reconstruction, plays a fundamental role in the positive diagnosis and assessment of the disease. Ultrasonography and MRI are second-line examinations. Standard X-rays can be used for positive diagnosis, but the assessment of lesions is limited due to the superimposition of different anatomical planes. We report three cases of Sprengel malformation with particularities for each case.

ABSTRACT
Rasmussen's encephalitis (RE) is a rare progressive inflammatory disease of the central nervous system. It is characterized by unilateral hemispheric atrophy, pharmacoresistant focal seizures, and progressive neurological deficit. The exact etiopathogenesis still remains unknown. Brain imaging plays an important role in diagnosis and follow-up. Fluctuation of lesions in brain imaging was reported in few cases. We report the case of a 12-year-old boy initially with intellectual development disorders presented to the pediatric emergency department with complaints of multiple episodes of seizures resistant to treatment. The MRI showing typical aspects of Rasmussen's encephalitis.

ABSTRACT
Melanoma is a potentially fatal form of skin cancer. Although it's the most common type of skin cancer in the pediatric population, it's rare, affecting around 0.4% of patients under the age of 20. We report a case of cutaneous melanoma in a 10-year-old female patient. At 48 days of age, he had presented with a nevus on the scalp, immunohistochemical analysis was in favor of a dysplastic nevus, the patient was lost to follow-up, he presented after 10 years with a voluminous mass on the scalp, which required brain MRI to objectify its extent, the signal was in favor of a melanoma. The patient also benefited from a cervico-thoraco-abdomino-pelvic CT scan, which came back without any notable abnormality.

ABSTRACT
Aim: Magnetic resonance imaging is the most sensitive imaging technique for the detection of breast cancer, although it is rarely requested as a first-line procedure. The aim of our study was to determine the indications and results of breast examinations using 1.5 Tesla MRI in a referral imaging centre in Douala. Methodology: We conducted a retrospective descriptive cross-sectional study between 01 March 2021 and 31 December 2022. The examinations were performed with a dedicated breast scanner, using axial and sagittal T1 SE and T2 FSE sequences, as well as dynamic T1 sequences with gadolinium injection, and interpreted by two experienced radiologists. According to the BIRADS classification of the American College of Radiology (ACR), examinations graded 4 to 5 were considered positive. Results: Thirty-five patients underwent breast MRI, with a median age of 47, ranging from 29 to 65 years. The vast majority of prescribers were gynaecologists (88.6%). The most common indication for MRI was for additional assessment of a lesion (34.2%), followed by assessment of locoregional extension (17.1%), particularly for multiple extensions. All investigations requested solely for mastodynia (14.3%) were unremarkable. The two cases of investigation of breast discharge were mainly associated with enhancement without mass (5.7%). At the end of the study, 28.5% of MRI scans were pathological according to BIRADS. Conclusion: The gradual introduction of 1.5 T MRI scanners in our environment means that we can now carry out breast MRI scans that are much more sensitive than ultrasound mammography. However, prescriptions are still highly specialised, and indications need to be verified, given their relative specificity and the socio-economic context in which our countries are evolving.