431. Egg shell calcification
- Sarcoidosis
- Silicosis
- Treated Lymphoma
432. Achondroplasia
- Champagne glass pelvis
- Bullet shaped vertebra
- Tombstone iliac wings
- Trident hand
- Macrocephaly with narrowed foramen magnum
433. In Doppler ultrasound, colour indicates direction of flow, conventionally:
- Red: towards the probe
- Blue: away from the probe
However, this can be reversed with machine settings.
434. Umbilical artery Doppler
- S/D ratio should be < 3 after 34 weeks of pregnancy
- S/D ratio in umbilical artery should always be less than that in MCA
- IUGR
- S/D >3 after 34 weeks gestation
- Absent diastolic flow
- reversal of diastolic flow
435. Thallium Scan: binds to normal perfused areas of myocardium, therefore infarct looks cold
436. Tecnitium Pyrophophate: binds to myocardial infarct and so it looks hot on nuclear scan.
437. Fibrous dysplasia
- Ground glass matrix
- Shepherd crook deformity
438. Diaphyseal aclasis = Hereditary multiple exostoses
439. Multiple enchondroma
- = Ollier's disease
- with Multiple subcutaneous hemangiomas = Maffucci syndrome
440. McCune-Albright syndrome
- Polyostotic fibrous dysplasia
- Precocious puberty
- Cafe au lait spots
