0 Medical One Liners 431-440

---

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

---