EVALUATION AND PROGNOSTIC ASSESSMENT OF RENAL MASSES

Question 1

What are the 5 criteria used in Bosniak classification?

Answer 1

1. CYST WALL CHARACTERISTICS
2. NUMBER OF SEPTAE
3. CALCIFICATION
4. CONTRAST ENHANCEMENT
5. SIZE

Question 2

What class define relatively benign lesions?

Answer 2

Classes 1 & 2 starting from a simple

Question 3

What class have progressively increasing complexity?

Answer 3

CLASS 2F & 3

Question 4

What class is composed of frankly malignant lesions?

Answer 4

CLASS 4

Question 5

What is the imaging modality of choice for screening and diagnosis of RCC?

Answer 5

CT

Question 6

What Bosniak Classification shows simple cyst of water density with a thin wall that does not contain septa, calcifications, or other solid components?

Answer 6

Bosniak 1

Question 7

What Bosniak classification where Cyst may contain a few hairline septa and fine calcifications; uniform high- attenuation lesions <3 cm that do not show contrast enhancement

Answer 7

Bosniak 2

Question 8

What Bosniak classification where cysts may contain multiple hairline thin septa or minimal smooth wall thickening; calcifications may be thick and nodular, but no contrast enhancement?

Answer 8

Bosniak 2F

Question 9

What Bosniak classification where more complex “indeterminate” cystic lesions, with more calcification and more prominent septation; thicker irregular or smooth walls; measurable contrast enhancement is present?

Answer 9

Bosniak 3

Question 10

What Bosniak classification where more complex “indeterminate” cystic lesions, with more calcification and more prominent septation; thicker irregular or smooth walls; measurable contrast enhancement present

Question 11

What Bosniak classification where clearly malignant cystic masses with all the criteria of category III but also contain contrastenhancing soft tissue components adjacent to, but independent of, cyst wall or septum?

Answer 11

Bosniak 4

Question 12

What is the most commonly observed benign lesions in renal masses?

Answer 12

ANGIOMYOLIPOMAS

Question 13

What are the 3 components that are found in Angiomyolipomas?

Answer 13

1. BLOOD
2. SMOOTH MUSCLES
3. ADIPOSE TISSUES

Question 14

What is the most common population associated with angiomyolipoma?

Answer 14

• middle-aged women
• 40 to 60 years of age

Question 15

What is the 2nd most frequently found benign renal mass?

Answer 15

Oncocytomas

Question 16

What is the most common population associated with oncocytomas?

Answer 16

• older men
• 70 years

Question 17

Onycocytomas originate from what aprt of the nephron?

Answer 17

CORTICAL.COLLECTING DUCT