MedicoNotebook

0 Medical One Liners 401 - 410

401. Osteoporosis: decreased bone mass but normal mineralization. (Mineral to matrix ratio normal)

402. Osteomalacia: decreased rate of mineralization, hence increased quantity of non-calcified matrix. (Mineral to matrix ratio decreased)

403. MRI breast: In pre-menopausal women it should be performed between 7th-14th day (2nd week) after start of menstrual cycle, to avoid interference from normal enhancing breast tissue that may otherwise lead to false negative/positive results.

404. Woven bone with osteoblastic rimming:

Ossfying fibromas (=osteofibrous dysplasia)
Osteoblastoma
Paget’s disease

405. Woven bone without osteoblastic rimming: Fibrous dysplasia

406. Gamekeeper thumb = skier thumb: tear of ulnar collateral ligament (UCL) of the thumb (at 1st metacarpophalyngeal joint)

407. Colles fracture: extra-articular distal radius fracture with dorsal angulation

408. Barton fracture: intra-articular distal radius fracture extending to dorsal aspect

409. Smith fracture - type I: extra-articular distal radius fracture with volar angulation

410. Reverse Barton fracture = type II Smith: intra-articular distal radius fracture extending to volar aspect.

MedicoNotebook - Founder : DrShiviMudgal , Co-Founder : DrAyushGoel

0 Restricted diffusion (MRI)

MCQ 166

Q. Which of the following defines "Restricted Diffusion" in MRI ?

a. Hyperintense on DWI, Hypointense on ADC
b. Hypointense on DWI, Hyperintense on ADC
c. Hyperintense on DWI and ADC
d. Hypointense on DWI and ADC

ANSWER:

MedicoNotebook - Founder : DrShiviMudgal , Co-Founder : DrAyushGoel

1 Paragangliomas

Paraganglion is defined as non neuronal cell derived from the neural crest.

Types:

Chromaffin cells (Sympathetic paraganglion)

Pathology e.g.- Pheochromocytoma

Non chromaffin cells (Para-sympathetic paraganglion)

Pathology e.g.- Carotid body tumor, Glomus juglare, Glomus tympanicum

[ sometimes called Glomus tumors* ]

*Not to be confused with Glomangioma which are also called Glomus tumors: benign vascular tumors (75% in hand).

MedicoNotebook - Founder : DrShiviMudgal , Co-Founder : DrAyushGoel

0 Medical one liners 391 - 400

391. Bouquet of flowers appearance = paintbrush appearance - seen in Medullary sponge kidney on IVP.

392.Gallbladder ghost triad - seen sonographically in Biliary atresia

atretic gallbladder length <19 mm,
thin or absent mucosal lining or indistinct wall,
irregular gallbladder contour

393. Triangular cord sign : Sonographic sign showing > 4mm thickness of echogenic anterior wall of the right portal vein (EARPV) in cases of Biliary Atresia.

394. Omental cake can be seen in Metastases (most common) from ovarian, gastric or colon cancer, Tuberculous peritonitis and Lymphoma.

395. Absence of swallow tail sign - Parkinson's disease.

396. Aphthous ulcers are seen in Crohn's disease. They are NEVER seen in Ulcerative colitis.

397. Lobster claw sign: seen in papillary necrosis.

398. Manta ray sign seen in bladder exstrophy.

399. Eye of tiger sign seen in Hallervorden-Spatz syndrome.

400. Uterine choriocarcinoma can occur following molar pregnancy, abortion and even normal pregnancy.

MedicoNotebook - Founder : DrShiviMudgal , Co-Founder : DrAyushGoel