NEET Pattern Questions

Malignant chest wall tumors

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Q  Most common malignant chest wall tumor
A. Chondrosarcoma
B. Osteosarcoma
C. Synovial sarcoma
D. Rhabdomyosarcoma

Answer to Q 46

Most common tumors of the chest wall are secondaries from elsewhere. The most common malignant tumor of chest wall is .......

Ref Sabiston page 1602

 

Priapism

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Q) What is the cause of priapism in a patient with trauma

a) Penile rupture

b) Dorsal vein of penis thrombosis

c) Spinal cord injury

d) Sickle cell anemia

Answer 

Most common cause of priapism is sickle cell anemia, but in the setting of trauma....

Read on  Q 86

Tropical Pancreatitis

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Q) All are true about tropical pancreatitis except?

a. Associated with Tapioca.
b. Patients have  large stones with fibrosis.
c. It is Pre Cancerous

d) Onset of disease at 50 years 

 

Free.

Answer -d )Onset of disease is at young age

Tropical pancreatitisis an  idiopathic disease which begins in teens.  It has a high association with diabetes and Pancreatic duct calculi. It is common in South India, Asia, Africa and central America.

 

Etiology of tropical pancreatitis includes 

Malnutrition 

Cassava

Hydrocarbons exposure

It is associated with SPINK 1 mutation

It is pre cancerous

IPSG data shows the cumulative risk of Pancreatic Cancer  in patients with Chronic Pancreatitis  (predominantly of alcoholic aetiology) was reported as 1.8 % and 4 % at 10 and 20 years respectively. This risk was reported to be independent of age, sex and type of pancreatitis.

The link between CP and PC is clearer in certain subtypes of CP like tropical pancreatitis and hereditary pancreatitis.

 Augustine et al. reported a 8.3 % incidence of pancreatic cancer in patients with tropical pancreatitis, which is much higher than western figures.

Ref 

Pancreatic Cancer in Chronic Pancreatitis

Puneet Dhar

Clinical Picture of tropical pancreatitis

a child, adolescent or young adult , recurrent upper abdominal pain, diabetes mellitus,  malnutrition, nutrient deficiencies, nutritional edema, cyanotic hue of the lips, parotid enlargement and pancreatic calculi on plain abdominal X ray  

Ref https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1742869/pdf/v079p00606.pdf

 

Lymphatic right adrenal

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Q) Lymphatic drainage of Right adrenal gland is to 
a. Para aortic group
b. Inter Aortocaval
c. Pre aortic.
d. Para Caval

d)  Para-caval for right and  Para aortic for left

Small lymphatic channels from both cortex and medulla drain into  the hilum, from where larger calibre lymphatic emerge to drain directly into the lateral group of  para-aortic lymph nodes

Right side adrenal is paracaval

Left side is para aortic

  • arterial supply is via three adrenal arteries 
    • superior adrenal artery (from inferior phrenic artery)
    • middle adrenal artery (from abdominal aorta)
    • inferior adrenal artery (from renal artery)
  • venous drainage 
    • adrenal veins emerge from the hilum and drain to different veins depending on the side:
      • left adrenal vein drains to the left renal vein
      • right adrenal gland drains to the IVC

( Grays anatomy)

 

cancer of testis

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Q ) Most Common  cancer of testis in children is 
a. Yolk sac  tumor
b. Leydig cell tumor
c. Seminoma testis
d. Choriocarcinoma

85) a, Yolk sac tumor

yolk sac tumor is the most common testicular tumor in infants and children. Teratoma is the
most common tumor in prepubertal males. Yolk sac tumor is the testicular tumor with best
prognosis.

Choriocarcinoma occurs in second and third decade and is highly malignant. Leydig cell  tumor is the most common non-germ cell tumor of testis with bimodal distribution, first at 5-9 yrs of age and second incidence at 25-35 yrs of age.

(Smith)

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