Q) 75 year old man complains of obstipation for 2 days. He has taken laxatives but continues to have worsening pain and distension associated with vomiting. He underwent b/l knee replacement  2 weeks back. He was on Inj fentanyl for pain control. He is on antihypertensives and lipid lowering agents for the past 15 years.

On examination  he is afebrile, oriented, pulse rate of 100 min/, BP 120/60 and abdomen is distended with mild tenderness. There are no signs of peritonitis, bowel sounds are sluggish.

TLC is 6,500, and  potassium is 3.2 . All other blood tests are normal. X ray abdomen and CT abdomen shows dilated large bowel loops and oral contrast upto splenic flexure.

What is the probable diagnosis

a) Ischemic colitis

b) CMV colitis

c) Colonic Pseudoobstruction

d) Caecal volvulus

Answer for premium members

TAPVD

Q) Total anomalous pulmonary venous drainage (TAPVD) is associated with 

a) Endocardial cushion defect

b) Sinus Venosus ASD

c) Defects in Fossa ovalis

d) Completely separate entity

Answer 

Aortic rupture

Q) Most common site for traumatic aortic rupture is 

a) Distal to the origin of left subclavian artery

b) Point of entry of aorta above the diaphragm

c) Root of aorta

d) Point distal to Left carotid artery

Answer 

a) Distal to origin of subclavian artery

Traumatic aortic rupture leads to sudden death after high impact automobile accident or fall from height. Aorta is relatively fixed distal to ligament arteriosum just distal to the origin of subclavian artery and this is the most common site of traumatic rupture especially partial rupture in which adventitia is intact.

Specific clinical findings are 

  1. Asymmetry of BP in upper limbs or upper and lower limbs
  2. Widened pulse pressure
  3. Chest wall contusions

Bailey page 355

http://www.msdmanuals.com/professional/injuries-poisoning/thoracic-trauma/aortic-disruption-traumatic

Death in Crohn Disease

Q. Which of the following is the most  common cause of death in Crohn's disease  of small intestine

 a) Malignancy

b) Sepsis

c) Electrolyte Disorders

d) Thromboembolic Phenomenon


Stemmer’s test

Q) Stemmer Test is done in

a) Lymphedema

b) Deep Venous Thrombosis

c) Superficial Venous thrombosis

d) Factitious lymphedema

Retroperitonuem tumor

Q) A 42 year old lady undergoes exploration for a retroperitoneum mass. In OT it is suspected that this is a liposarcoma. Which of the following is  not true about liposarcoma? ( Some MRCS Questions

a) Liposarcoma is the most common variant of sarcomas

b) They have a  pseudocapsule

c) They can grow quite large before producing symptoms

d) They are locally invasive and do not metastatize

Atrial Septal Defect

Most Common Type of ASD MCQ for NEET SS | mcqsurgery.com

Most common type of atrial septal defect (ASD) is:

Correct Answer

B) Ostium secundum

Explanation

Atrial septal defects are classified according to their anatomical location within the atrial septum.

  • Ostium secundum ASD:
    Located at the region of the fossa ovalis. It accounts for approximately 70–75% of all atrial septal defects, making it the most common type.
  • Ostium primum ASD:
    Less common. Typically associated with atrioventricular septal defects and endocardial cushion defects.
  • Sinus venosus ASD:
    Relatively rare. Commonly associated with partial anomalous pulmonary venous return.
  • Comparison:
    Since ostium secundum defects are far more frequent than other types, option (D) is incorrect.

Teaching Points

  • Ostium secundum ASD is the most common type (≈70–75%)
  • Located at the fossa ovalis
  • Ostium primum ASD is associated with AV canal defects
  • Sinus venosus ASD is commonly associated with anomalous pulmonary venous return
  • Fixed split S2 is a classic clinical finding in ASD