- **Lateral Atlanto-Axial Displacement in Spinal Injuries**: George Jacobson and Denis C. Alder (1953) found that lateral offset of the atlas and axis is more common with fractures and dislocations. They suggest that unilateral medial and bilateral offset can be caused by normal movement or injury, and meticulous X-rays are necessary to detect obscure fractures. - **Significance of a Solitary Mass in the Lung**: C. Allen Goo, R. T. Hoon, Jr., and J. R. McDonald (1953) concluded that calcification in a solitary lung mass is the only reliable sign of benignancy. Other radiological features are unreliable, and surgical intervention is often necessary. Radiologists should focus on detecting calcification to determine if surgery can be delayed. - **Pulmonary Interstitial Emphysema**: G. Hernheiser and J. P. Whitehead (1953) noted that pulmonary interstitial emphysema is more common than recognized, often associated with intrapulmonary hemorrhage. Radiological signs include translucent areas with thin walls, slightly thicker marginal zones, and sinuous outlines, which are easier to observe in large spaces. - **Thoracic Renal Ectopia**: J. F. Stephen Weens and M. Hansen Johnson (1953) suggested that a broad-based thoracic mass near the postero-medial diaphragm may indicate renal ectopia. Urographic studies can help differentiate between diaphragmatic and renal masses, with the high anterior segment of the diaphragm projecting above the upper pole of the ectopic kidney. - **Bone Changes in the Skull in Dystrophy Myotonica**: J. E. Caughey (1952) reported 14 cases of dystrophy myotonica with post-mortem findings. Common radiological abnormalities included hypoplasia of the calvarium, hyperostosis interna, small pituitary fossa, and small sella turcica. These changes are considered variable features of dystrophy myotonica. - **A New Method of Treatment for Arthritis**: N. S. Finzi (1953) described a method using irradiation of the cervico-dorsal or lumbar spine to treat severe arthritis of the hands. The treatment involved weekly skin irradiation and spinal irradiation, with a total of 12 to 16 treatments. Initial results showed relief from neck pain without irradiation of the hands.- **Lateral Atlanto-Axial Displacement in Spinal Injuries**: George Jacobson and Denis C. Alder (1953) found that lateral offset of the atlas and axis is more common with fractures and dislocations. They suggest that unilateral medial and bilateral offset can be caused by normal movement or injury, and meticulous X-rays are necessary to detect obscure fractures. - **Significance of a Solitary Mass in the Lung**: C. Allen Goo, R. T. Hoon, Jr., and J. R. McDonald (1953) concluded that calcification in a solitary lung mass is the only reliable sign of benignancy. Other radiological features are unreliable, and surgical intervention is often necessary. Radiologists should focus on detecting calcification to determine if surgery can be delayed. - **Pulmonary Interstitial Emphysema**: G. Hernheiser and J. P. Whitehead (1953) noted that pulmonary interstitial emphysema is more common than recognized, often associated with intrapulmonary hemorrhage. Radiological signs include translucent areas with thin walls, slightly thicker marginal zones, and sinuous outlines, which are easier to observe in large spaces. - **Thoracic Renal Ectopia**: J. F. Stephen Weens and M. Hansen Johnson (1953) suggested that a broad-based thoracic mass near the postero-medial diaphragm may indicate renal ectopia. Urographic studies can help differentiate between diaphragmatic and renal masses, with the high anterior segment of the diaphragm projecting above the upper pole of the ectopic kidney. - **Bone Changes in the Skull in Dystrophy Myotonica**: J. E. Caughey (1952) reported 14 cases of dystrophy myotonica with post-mortem findings. Common radiological abnormalities included hypoplasia of the calvarium, hyperostosis interna, small pituitary fossa, and small sella turcica. These changes are considered variable features of dystrophy myotonica. - **A New Method of Treatment for Arthritis**: N. S. Finzi (1953) described a method using irradiation of the cervico-dorsal or lumbar spine to treat severe arthritis of the hands. The treatment involved weekly skin irradiation and spinal irradiation, with a total of 12 to 16 treatments. Initial results showed relief from neck pain without irradiation of the hands.