0 Medical One Liners 441-450

441. MRI - Gadolinium contrast is used (when needed). In patients with renal failure, it may cause Nephrogenic Systemic Fibrosis - plaques of skin (firm, indurated and erythematous) with subcutaneous oedema.

442. Air bronchograms can be seen in alveolar pathologies:
  • Pneumonia
  • Pulmonary edema
  • Hyaline membrane disease
  • Bronchoalveolar carcinoma
443. Pneumatocele can be seen in
  • Staphylococcal and klebsiella pneumonia
  • Hydrocarbon poisoning
444. Viral and mycoplasma pneumonia gives interstitial pattern. No alveolar exudates are seen.

445. Hydatid cyst:
  • Ultrasound: Cart wheel appearance
  • in Lungs it does not calcify
  • Chest X-ray: if contained rupture - water lily sign
    • Note: Drooping lily sign is seen on IVP in duplex collecting system with upper moiety obstruction
446. Egg in cup:
  • calyces: Papillary necrosis
  • heart: constrictive pericarditis
447. Focal nodular hyperplasia (FNH) has high Kupffer cells and takes up technetium 99m sulphur colloid.

448. In Blunt trauma cases:
  • Ideal and gold standard investigation: Contrast enhanced CT (CECT)
  • If haemodynamically unstable/1st Investigation: FAST (Focused assessment sonography in trauma)
449. Beaded appearance in Renal artery/Internal carotid/External Iliac: Fibromuscular dysplasia

450. Only Veins (hepatic and portal) form basis of division of couinaud segments of the liver.

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