41. Tracheal collapse is easily seen on a radiograph as a narrowing of the antitussives. 42. A radiograph will reveal a soap bubble appearance. 43. The exposure for this radiograph lasted 14 minutes. 44. If cavitations are present, plain radiographs will show collections of air within the tumor. 45. Radiographs of the head will help the veterinarian assess the severity and recommend treatment options.46. Panoramic radiographs are taken to map out the patient's upper jaw and sinuses. 47. On a dental radiograph , the involved tooth looks rectangular in shape without apical taper. 48. Radiographs are made to confirm the diagnosis.49. LSA can be diagnosed through lymph node cytology, biopsy, radiographs , and ultrasounds. 50. Therefore, radiographs are best used to evaluate boney changes rather than soft tissue damage.