Onco Thyroid

Thyroid Oncosurgery MCQS

First 3 questions are free, rest are for premium members


Q16. Carcinoma thyroid with Lymph Node  metastasis?

A. Worse prognosis  in elderly

B. Worse prognosis in younger

C. Increased local recurrence  in younger

D. Increased local recurrence in elderly

A16) a

Most patients with PTC can expect an excellent prognosis, with the 10-year survival rate greater than 95% for the most favorable stages

Age at diagnosis is the most important prognostic factor in DTC. Diagnosis at an age younger than 40 years is associated
with excellent survival.


Age <40 years

Sex Female

Sabiston page 904


Q17. Chance of metastasis to lymph node in Papillary thyroid cancer
a) <10%
b) 10-20
c) 20-40
d) >60

Ans 17) d


Q18) Prophylactic thyroidectomy is done for 

a) Medullary Carcinoma thyroid

b) Anaplastic

c) Lymphoma

d) Papillary Ca thyroid

ans 18 a) Medullary carcinoma thyroid

Hereditary MTC is identified through  germline RET mutation  

 When to do Prophylactic thyroidectomy

Children identified to harbor the ATA highest-risk RET mutations (i.e., Met918Thr) are recommended to undergo total thyroidectomy in the first year of life.

In children with ATA high-risk mutations (i.e., codon Cys634 and Ala883Phe mutations), prophylactic thyroidectomy is typically recommended before 5 years of age, with the exact timing based on annual clinical examination, neck ultrasound, and serum calcitonin levels starting from the age of 3 years

Children with ATA moderate-risk RETmutations, the timing of prophylactic thyroidectomy should be based on the findings of clinical examination, neck ultrasound, and serum calcitonin concentrations commencing at age 5 years. 

Once calcitonin levels are greater than 30 pg/mL, the likelihood of nodal metastases increases, and this will often necessitate central node dissection, which is associated with increased operative morbidity and a reduction in duration of long-term remission. 

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