0 Caput medusae sign

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Caput medusae sign is seen in :

  • developmental venous anomaly (on Contrast enhanced CT or MRI)
  • portal venous hypertension (Portosystemic shunt - engorged paraumbilicus veins)





MedicoNotebook - Founder : DrShiviMudgal , Co-Founder : DrAyushGoel

0 Medical One liners 251 - 260

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251. Most common type of disproportionate dwarfism : Achondroplasia

252. Commonest fatal neonatal dysplasia : Thanatophoric dwarfism.

253. Platyspondyly with central vertebral beaking is the diagnostic hallmark of Morquio's disease.

254. PNDT act - 1994, But PCPNDT act (amendment in PNDT act ) - 2003.

255. Pulmonary hypertension : Main pulmonary artery > 28.6 mm,
                                               Right descending pulmonary artery > 16mm

256. Speed of ultrasound in soft tissue : 1540 m/sec.

257. Natural global radiation : Average yearly radiation dose is 2.7 mSv

258. International commission on radiological protection (ICRP) was founded in 1928

259. Atomic energy act - 1962

260. Radionuclides K40 and C14 are present in human body.


MedicoNotebook - Founder : DrShiviMudgal , Co-Founder : DrAyushGoel

0 Comet tail artifact

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MCQ 153

Q. Comet tail artifact is a type of 

a. reverberation artifact
b. side lobe artifact
c. posterior acoustic enhancement
d. posterior acoustic shadowing


ANSWER:

Answer : A (reverberation)
It is seen in gallbladder adenomyomatosis, caused by cholesterol crystals in Rokitansky-Aschoff sinuses.




MedicoNotebook - Founder : DrShiviMudgal , Co-Founder : DrAyushGoel

0 Skull and achondroplasia

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MCQ 152

Q. Skull is not involved in all except :

a. Achondroplasia
b. Hypochondroplasia
c. Pseudoachondroplasia
d. All of the above


ANSWER:
Answer : A
Skull changes are mandatory to diagnose achondroplasia. - Calvarium large, base shortened , foramen magnum small and funnel shaped.
Skull is never involved in Hypochondroplasia and pseudochondroplasia.


MedicoNotebook - Founder : DrShiviMudgal , Co-Founder : DrAyushGoel
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