X-ray sign of pneumoperitonium?
A. Steeple signB. Rigler’s sign
C. Golden ‘S’ sign
D. ‘Bird of prey’ sign
Ans.
B. Rigler’s sign
• The typical finding in sigmoid volvulus is smooth tapered end of contrast column: hook-like in appearance - ‘bird of prey sign’ (where the tapered blind end is seen as a hook).
•
Laryngotracheobronchitis (croup) is characterized by the narrowing of the
subglottic airway (Steeple sign) • The typical finding in sigmoid volvulus is smooth tapered end of contrast column: hook-like in appearance - ‘bird of prey sign’ (where the tapered blind end is seen as a hook).
• Rigler’s sign - bowel wall outlined by intraluminal and free peritoneal gas.
• The focal bulge at the apex of the collapsed right upper lobe corresponds to the centrally located bronchogenic carcinoma causing the lobar collapse. The combined radiologic appearance on frontal radiograph is known as
‘Golden S sign’.
