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radiology - 3 Questions
Which of the following helps in distinguishing an osseous neoplasm and a cyst on an X-ray: peripheral bone formation.
Orotic acid forms radiopaque stones, while Xanthine, Cysteine, and Allopurinol form radiolucent stones. Radiolucent stones are not visible on plain radiographs due to their composition being similar to soft tissue density. Orotic acid stones contain calcium and are therefore radiopaque.
In Waters view, the patient's chin is placed touching the radiographic cassette. This positioning tilts the head back and projects the maxillary sinuses clearly while minimizing superimposition of the petrous ridges over the sinuses.
MCQ