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.

2 Pulmonary sequestration

Author: Dr. Ayush Goel

Pulmonary Sequestration = accessory lung (embryonic cut off of a segment from main lung)


More common (75-85% cases)
Less common (15-25% cases)
Usually Child with recurrent infections
Usually Neonate with respiratory distress and cyanosis
Arterial supply
Aorta (Same in both types)
Venous supply
usually Pulmonary venous  drainage
Usually systemic venous drainage
Same pleura as ipsilateral lung
Separate pleura from ipsilateral lung
60% cases affect left lower lobe (Most commonly Posterior basal segment); 40% right lower lobe.
Always affect left lower lobe; can be subdiaphragmatic in 10% cases

Sequestrated lung appears hyperechoic than rest of lung on prenatal ultrasonography

1 Radiology Quiz 4

Author: Dr. Ayush Goel

Q. Whats your diagnosis ?

Image courtesy: Dr Ayush Goel and Dr Subhash Goel

Answer: Enlarged Adenoids and Tonsils

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