Mcqs series 7

301. Thrombospondins (TSP) has anti-angiogenic abilities

302. Infectious diseases communicable during the later part of the incubation period are - Measles, chickenpox, whooping cough, hepatitis A.

303. Fredericson classification - medial tibial stress syndrome

304. Bismuth-Corlette classification - perihilar cholangiocarcinoma

305. Luftsichel sign & juxtaphrenic peak sign - Left Upper Lobe collapse
        Flat waist sign - Left Lower Lobe collapse.

306. Most common hepatic malignancy in children is Hepatoblastoma.

307. Most common anomaly associated with coarctation of aorta is bicuspid aortic valve.

308. 4th Ventricle Ependymoma vs Meduloblastoma

• Ependymoma - usually from Floor of 4th ventricle (Mnemonic - Alphabetic order EF)
• Meduloblastoma - usually from Roof of 4th ventricle

309. Most common tumor of mediastinum - neurogenic tumor.

310. Most common causes of renal artery stenosis

• Old age - Atherosclerosis
• Young (India) - Takayasu arteritis
• Young (Western world) - Fibromuscular dysplasia.

311. Lung tissue interposing between the main pulmonary artery and aorta was the most consistent diagnostic feature of Congenital absence of the pericardium (CAP).

312. Mathe’s sign- Absence of downward displacement of kidney in perinephric abscess.

313. Snowcap sign - Avascular necrosis - there is dense sclerosis over the head of humerus or femur.

314. Christmas tree / Pine cone bladder - cystogram appearance of urinary bladder in neurogenic bladder (not pathognomonic)

315. Sail sign - Seen on Xray lateral view with Elbow joint effusion.

316. Holly leaf sign - Chest X-ray showing calcified pleural plaques (most commonly in asbestos related disease)

317.  Coca-cola bottle sign - thyroid ophthalmopathy (usually in Grave's disease)

318. Panda sign : Wilson disease (neuroradiology) and Sarcoidosis (bilateral involvement of parotid and lacrimal glands)

319. Bright rim sign on FLAIR - seen in dysembryoplastic neuroepithelial tumors (DNET)

320. Round atelactasis with comet tail - seen in asbestos related disease.

321. CT scan is most sensitive investigation to detect pulmonary nodule of  3mm or greater diameter.

322. Dysmyelinating disease with MR Spectroscopy showing markedly elevated NAA peak - Canavan disease.

323. In PET scan, 18-FDG accumulates in metabolically active cells as FDG -6-phosphate but it does not enter citric acid cycle.

324. Most accurate imaging technique for the staging of primary lung tumors - PET

325. Most common posterior fossa tumor in adult - Cerebellar metastases.

326. Most common primary posterior fossa tumor in adult - Hemangioblastoma.

327. Fishhook ureter = hockey stick ureter = J-shaped ureter, seen in : significant BPH.

328. S-shaped ureter : seen with retrocaval ureter.

329. Masaoka staging system is used for - thymomas.
Stage II and above - thymic carcinoma.

330. Chauffeur fractures = Hutchinson fractures = backfire fracture : intraarticular fracture of the radial styloid process.

331. Strawberry shaped skull - seen in trisomy 18 (Edward syndrome).

332. H-shaped vertebra (also known as Lincoln log vertebra) - 10% cases of sickle-cell anaemia, occasionally Gaucher disease.

333. Fat ring sign or fat halo sign in messentry is seen in - Messenteric panniculitis

334. Aortic nipple sometimes seen on a Chest Xray PA view, is formed by left superior intercostal vein.

335. Most common Soft tissue sarcoma

• Middle age and elderly - Malignant fibrous histiocytoma > liposarcoma > leiomyosarcoma >malignant peripheral nerve sheath tumors(MPNST).
• Younger individuals - Fibrosarcoma > Rhabdomyosarcoma > Synovial sarcoma > MPNST

336. Bilateral posterior iliac horns are considered pathognomonic for Fong's disease = Nail patella syndrome.

337. Bochdalek's hernia is mostly left sided because of protective effect from liver on the right.

338. Mini Brain sign is seen in Solitary Plasmacytoma - It is due to prominent thickened residual trabeculae seen in a solitary expansile bone lesion.

339. Tube ring sign on ultrasound is highly specific(95%) for tubal ectopic pregnancy.

340. Ring of fire sign on color doppler can be seen in Ectopic pregnancy and Corpus luteum cyst.

341. Primary amyloid can cause an inflammatory response in lungs. This does not happen in case of secondary amyloid.

342. Drugs which can cause eosinophilia and pulmonary infiltrates- Penicillin, sulfonamides, methotrexate, asprin, nitrofurantoin, PAS.

343. The cytotoxic drugs have fibrogenic effect. This is enhanced by radiotherapy and high levels of inspired oxygen.

344. Intra renal calculi are usually asymptomatic. But an intra renal calculus can obstruct at the level of infundibulum and present with pain.

345. Shiny corner sign is seen in Ankylosing spondylitis.

346. MRI is the modality of choice in the assessment of glutaric aciduria type 1

347. Most common offending vessel in vascular loop compression -

• Causing trigeminal neuralgia - superior cerebellar artery
• Hemifacial spasm - Anterior inferior cerebellar artery.

348. Porencephalic cyst is lined by white matter whereas arachnoid cyst is lined by grey matter.

349. Dandy-Walker variant can not be diagnosed before the 18th week of gestation because the inferior vermis is not formed at this time.

350. Most consistent pathological finding in chronic bronchitis - hypertrophy of mucous secreting glands of bronchi.