Supernumerary tooth may closely resemble the teeth of the group to which it belongs, i.e. molars, premolars or anterior teeth, or it may bear little resemblance in size or shape to which it is associated. Many complications can be associated with supernumeraries, like impaction, delayed eruption or ectopic eruption of adjacent teeth, crowding, development of median diastema and eruption into floor of the nasal cavity. This may also cause the formation of follicular cysts with significant bone destruction. Early intervention to remove it is usually required to obtain reasonable alignment and occlusal relationship. This article will present the clinical management of an (i) impacted supernumerary tooth impeding the eruption of maxillary central incisor and (ii) erupted supernumerary tooth with midline diastema.

We aim in the current study to review pulmonary and extra-pulmonary imaging features in patients infected with COVID-19. COVID-19 appears to be a highly contagious viral disease that attacks the respiratory system causing pneumonia. Since the beginning of the outbreak, several reports have been published describing various radiological patterns related to COVID-19. Radiological features of COVID-19 are classified into; pulmonary signs of which ground glass opacities are considered the characteristic followed by consolidation, and extra-pulmonary signs such as pulmonary embolism and pneumothorax, which are far less common and appear later in progressive disease. We review the different structured reporting systems that are published by different groups of radiologists using simple unified terms to enable good communication between the radiologist and the referring physician. Computed tomography of the chest is beneficial for early diagnosis of COVID-19 pneumonia, assessment of disease progression and guide to therapy, surveillance of patients with response to therapy, prediction of overlying bacterial infection, differentiation from simulating lesions, and screening with prevention and controls of the disease.

Available online xxxx KEYWORDS Breast; Diffusion-weighted imaging (DWI); Dynamic contrast-enhanced MRI (DCE-MRI); Breast MRIAbstract Purpose: To evaluate the role of diffusion weighted imaging and dynamic contrast enhanced magnetic resonance imaging in characterization of breast tumors and comparing the results with the histological finding. Patients and methods: From January 2011 to January 2015, 71 patients with 74 suspicious breast lesions had performed breast DCE-MRI combined with DWI and the results were compared with the histopathological examination which was used as the standard diagnostic method. Results: The study included 71 patients with 74 suspicious breast lesions, there were 38 benign lesions ((51.35%) and 36 malignant lesions (48.65%)). DCE-MRI proved to have a sensitivity of 91.7%, and a specificity of 84.2%. ADC cutoff value to differentiate between benign and malignant lesions was 1.32 · 10 3 mm 2 /s (P < 0.001). The diffusion weighted MRI proved to have a sensitivity of 94.4%, and a specificity of 92.1%. The combined MRI protocol of DCEMRI and DWI proved to increase the sensitivity and specificity of breast MRI.Please cite this article in press as: El Bakry MAH et al., Role of diffusion weighted imaging and dynamic contrast enhanced magnetic resonance imaging in breast tumors, Egypt J Radiol Nucl Med (2015), http://dx.Conclusion: DWI had a higher sensitivity and specificity than DCE-MRI. The combined MRI protocol of DCEMRI and DWI proved to increase sensitivity and specificity of MRI in diagnosis and differential diagnosis of breast lesions.

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Sotos syndrome is a well-defined childhood overgrowth syndrome characterized by pre- and postnatal overgrowth, developmental delay, advanced bone age, and a typical facial gestalt including macrodolichocephaly with frontal bossing, frontoparietal sparseness of hair, apparent hypertelorism, downslanting palpebral fissures, and facial flushing. This report presents a case of Sotos syndrome in a 5½-year-old child.