A 43 year old man with continuous vomiting is suspected of having acute cholecystitis. On palpation guarding of the abdomen was present. Which of the following investigation exclude acute cholecystitis in this patient?

Radiology

A 43 year old man with continuous vomiting is suspected of having acute cholecystitis. On palpation guarding of the abdomen was present. Which of the following investigation exclude acute cholecystitis in this patient?

All of the following form radiolucent stones except:

The usual radiographic appearance of an osteosarcoma is:

A middle aged female presents with slowly progressive weakness of lower limbs,…