A 25 years old female presented with a complaint of acute pain in the abdomen for the past 12 hours. On examination, there is severe tenderness in the right iliac fossa. The patient denied any history of tuberculosis. On CBC, neutrophil count appears to be raised. The X-ray of the abdomen did not show any evidence of bowel obstruction. An ultrasound abdomen was performed and given below. What is the probable diagnosis?