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
- calyces: Papillary necrosis
- heart: constrictive pericarditis
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)
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Types:
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Intralobar
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Extralobar
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More common (75-85% cases)
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Less common (15-25% cases)
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Usually Child with recurrent infections
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Usually Neonate with respiratory distress and cyanosis
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Arterial supply
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Aorta (Same in both types)
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Venous supply
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usually Pulmonary venous
drainage
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Usually systemic venous drainage
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Pleura
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Same pleura as ipsilateral lung
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Separate pleura from ipsilateral lung
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Site
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60% cases affect left lower lobe (Most commonly Posterior basal
segment); 40% right lower lobe.
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Always affect left lower lobe; can be subdiaphragmatic in 10% cases
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Sequestrated lung appears hyperechoic than rest of lung on prenatal ultrasonography
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