Burkitt lymphoma (BL) is a highly aggressive, rapidly growing B cell non-Hodgkin lymphoma, which manifests in several subtypes including sporadic, endemic, and immunodeficiency-associated forms. Pathologically, BL is classically characterized by translocations of chromosomes 8 and 14 resulting in upregulation of the c-myc protein transcription factor with upregulation of cell proliferation. BL affects nearly every organ system, most commonly the abdomen and pelvis in the sporadic form. Imaging using a multimodality approach plays a crucial role in the management of BL from diagnosis, staging, and evaluation of treatment response to therapy-related complications with ultrasound, computed tomography, magnetic resonance imaging, and positron emission tomography playing roles. In this article, we review the pathobiology and classification of BL, illustrate a multimodality imaging approach in evaluating common and uncommon sites of involvement within the trunk and head and neck, and review common therapies and treatment-related complications.

To evaluate the use of ultrasound for the diagnosis of knee bursitis. One-hundred and fifty-eight patients who, from May 2013 to May 2014, had an ultrasound examination of the knee and magnetic resonance imaging (MRI) of the knee during the following month were eligible for the study. The exams were reviewed by two musculoskeletal radiologists with 20 years of experience. Of these patients, 15 (7 men, 8 women) had bursitis, while 143 (76 men, 67 women) had no bursitis. In evaluating knee bursitis, US, when compared to MRI, correctly identified 13 out of 15 cases of bursitis, showing a sensitivity of 86.67 %, specificity 100 %, and K index of 0.92. Particularly in the suprapatellar bursa, ultrasound showed bursitis in 5 cases versus 7 by MRI (sensitivity of 71.4 %, specificity of 100 %, and K index of 0.82). Ultrasound can be used as a valuable tool for the evaluation of bursitis of the superficial bursae in patients who cannot undergo MRI. Valutare l’utilizzo dello studio ecografico nella diagnosi delle borsiti del ginocchio. Nello studio sono stati considerati centocinquantotto pazienti tra Maggio 2013 e Maggio 2014 valutati con esame ecografico del ginocchio che sono stati rivalutati con Risonanza Magnetica entro un mese dalla valutazione ecografica. Gli esami radiologici sono stati esaminati da due radiologi con 20 anni di esperienza in campo muscolo scheletrico. All’interno del gruppo di pazienti in studio 15 (7 uomini, 8 donne) hanno presentato diagnosi di borsite, mentre 143 pazienti (76 uomini, 67 donne) hanno presentato un esame negativo. L’ecografia comparata alla Risonanza magnetica nella valutazione delle borsiti del ginocchio ha evidenziato 13 casi su 15, mostrando una sensibilità del 86.67 %, specificità del 100 % e indice K di 0.92. In particolare a livello della borsa sovra patellare, l’ecografia ha mostrato la presenza di borsite in cinque casi, rispetto ai 7 pazienti della Risonanza Magnetica (Sensibilità 71.4 %, specificità 100 % e indice K 0.82). L’ecografia può essere utilizzata come strumento efficace nella valutazione delle borsiti delle borse superficiali nei pazienti che non possono essere sottoposti a valutazione con Risonanza Magnetica.