Abstract Horizon-scale images of black holes (BHs) and their shadows have opened an unprecedented window onto tests gravity fundamental physics in the strong-field regime. We consider a wide range well-motivated deviations from classical General Relativity (GR) BH solutions, constrain them using Event Horizon Telescope (EHT) observations Sagittarius A* (Sgr A*), connecting size bright ring emis...

Background Cardiac sarcoma remains one of the most aggressive primary cardiac tumours, which can arise from different cardiac chambers and demonstrate various features, depending on differentiation and histologic composition. In many cases the diagnosis is difficult, and consequences of incorrect diagnosis are too harmful. We will present different types of cardiac sarcomas and their imaging fe...

Bone pain in children is common. The cause may be as benign as growing pains or as life-threatening as a malignancy. When a cause cannot be established by laboratory tests, physical examination or patient history, imaging of the affected body part is often obtained. Distinguishing benign from malignant processes involving the bones of children, based on imaging findings, can be challenging. The...

We show that the repulsive effects associated to zero-point energies of quantum fields are capable supporting ultracompact stars overcome compactness limits present in general relativity for any object hydrostatic equilibrium. These objects exact self-consistent solutions semiclassical gravity incorporate backreaction renormalized stress-energy tensor (RSET) vacuum. arrive at striking qualitati...

Magnetic resonance imaging (MRI) has become a vital part of the routine work up of a patient with a suspected soft-tissue tumor of the musculoskeletal system. Unlike for bone lesions, plain radiography and CT are of little help in evaluating noncalcified tumors in soft tissue. True multiplanar capability and unparalleled capacity for softtissue contrast make MRI superbly suited to this particul...

Pulmonary immune-related adverse events represent rare but potentially severe side effects of immunotherapies. Diagnosis is often challenging, as symptoms and imaging features are not specific may mimic other lung diseases, thus delaying appropriate patient management. In this setting, an accurate evaluation essential for a prompt detection correct management these drug-induced diseases. The pu...