Section Retrorectal mass 22 Mar 202222 Mar 2022 Developmental cystsEpidermoidDermoidEnteric (cystic hamartoma or rectal duplication)Sacral lesionsTeratomaAnterior sacral meningoceleChordoma LymphangiomaAnorectal lesionsLipoma GISTAnal gland cyst
Section 8th edition TNM anal cancer staging 22 Mar 202222 Mar 2022 Stage I T1 - tumor not more than 2 cm in greatest dimension N0 - no regional lymph nodes M0 - no distant metastasesStage IIa T2 - tumor more than 2 cm…
Section Differentials based on degree of bowel wall enhancement 21 Mar 202221 Mar 2022 AvidIschemia Inflammatory bowel diseaseMalignancyAcute infectionModerately homogenous MalignancyLymphomaChronic inflammatory bowel diseaseChronic ischemiaHeterogeneousMalignancyLymphoma (usually after treatment)Infiltration (endometriosis)Layered enhancement (target sign)Inflammatory bowel diseaseInfectionVasculitisIschemiaGraft versus host diseaseRadiation colitisReducedIschemia
Section Misty mesentery 21 Mar 202221 Mar 2022 Mesenteric edemaHypoalbuminemiaPortal hypertensionCirrhosis Nephrotic syndromeHeart failurePortal vein and SMV thrombosisTraumaNeoplasmSurgeryLymphedema InflammationNeoplasmSurgeryRadiation therapyCongenital abnormalityInflammationPancreatitisAppendicitisDiverticulitisInflammatory bowel diseaseTuberculosisAmyloidosisMesenteric panniculitisHemorrhageTraumaBowel ischemiaCoagulopathyNeoplasmsNon-hodgkin lymphomaMesotheliomaCarcinoidColon, pancreatic, ovarian, breast cancerMelanomaGastrointestinal stromal tumor
Section Strictures of small intestine 21 Mar 202221 Mar 2022 Crohn diseaseTumors Primary carcinomaCarcinoid Lymphoma Invasion from other organsMetastasesTuberculosisActinomycosisStrongyloidiasisAnisakiasis Radiation injuryIschemiaIntramural hemorrhageDiverticular massAppendiceal massEndometriosisEosinophilic gastroenteritisIdiopathic ulcerative enteritisBehcet diseaseNSAIDs
Section 8th edition TNM esophageal cancer staging 21 Mar 202222 Mar 2022 TT1aInvasion of lamina propria or muscular mucosaT1bInvasion of submucosaT2Invasion of muscularis propriaT3Invasion of adventitiaT4aResectable tumor invading pleura, pericardium or diaphragmT4bUnresectable tumor invading aorta, airway, vertebrae etcNN0No lymph nodes N1One to two…
Section Differentials for right iliac fossa pain 21 Mar 202221 Mar 2022 AppendicitisEctopic pregnancyOvarian cyst with or without torsionSalpingitisEndometriosisDiverticulitisInfectious ileocecitisCrohn’s diseaseMalignancyIntussusceptionMeckel’s diverticulumCholecystitisUrolithiasisMesenteric adenitis
Section Small bowel versus Large bowel in the plain radiograph 21 Mar 202221 Mar 2022 Small bowelCentral positionCalibre > 3.5 cm and < 5 cmPresence of valvulae conniventesLarge bowelPeripheral positionCalibre > 5 cmPresence of haustra