Sestamibi in Parathyroid

Parathyroid Sestamibi MCQ
Q) The sensitivity and specificity of sestamibi for parathyroid localization are reported to be 79% and 90%, respectively. Which of the following best describes a potential source of false positives in sestamibi imaging?
A) Parathyroid adenomas in patients with hyperparathyroidism
B) Thyroid nodules with high oxyphilic content, such as Hürthle cell nodules
C) Low mitochondrial content in thyroid tissues
D) Parathyroid glands in normal positions
Answer For Premium Members

Theme from mock test on 16.2.25 — #parathyroid

Q) A 60-year-old woman is found to have a 3.2 cm pancreatic cystic lesion on MRI. EUS shows internal echogenic material within the cyst cavity. To accurately determine whether this represents mural nodules rather than intraluminal debris, which of the following is the most definitive diagnostic approach?
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Thyroid storm

Q) 40 year old lady was on anti thyroid medications which she stopped for 2 weeks.

She presented in emergency with high grade fever and hypotension (Thyroid Storm).

What is not a part of further management?
a) Oxygen
b) Beta blockers
c) Radio active Iodine
d) Lugol's iodine

Medullary thyroid cancer – Management

Thyroid MCQ
Q) 42 year old Male patient with 1 cm nodule in Right side of Thyroid.

Biopsy shows medullary carcinoma. No neck nodes are seen on USG. What is the management?
a) Total thyroidectomy
b) Total thyroidectomy with central node dissection
c) Total thyroidectomy with lateral and central neck dissection
d) Right hemithyroidectomy
Answer

Prognosis Carcinoma thyroid

Q) Not an important prognostic factor in Carcinoma thyroid (JIPMER)  ?
A. Age
B. Completeness of resection
C. Multicentricity
D. Extra thyroid extension

Ans c

In thyroid carcinoma, important prognostic factors include age (younger patients tend to have a better prognosis), completeness of resection (as complete removal of the tumor affects outcomes), and extra-thyroid extension (invasion beyond the thyroid worsens prognosis). However, multicentricity (the presence of multiple tumor foci within the thyroid) is generally not considered a major prognostic factor.

Most of the papillary carcinoma are multicentric any way

 

As per AGES And AMES criteria.

HIgh risk - Male. Age more than 40 years, Size more than 4 cm, Capsular or extra thyroid extension, Regional or distant metastasis and poor differentiation

Low Risk - Well differentiated less than 2 cm. Age benefit is extended to 50 yrs in women

 

IN younger patients (<45 years old), the presence of lymph node metastases had no effect on the excellent overall survival, but the presence of lymph node metastases increased the risk of death by 46% in patients older than 45

The presence of lymph node metastasis in patients with contained intrathyroidal primary papillary carcinoma also does not affect
long-term survival.

If there is gross or microscopic extension of a primary PTC through the thyroid capsule, a poor prognosis and
possibly a higher rate of lymph node metastasis may be anticipated.

Papillary carcinoma thyroid

Q) 40 yr old lady 2X 2 Solitarty thyroid nodule left lobe. FNAC shows  classic type of papillary  carcinoma . Usg no neck nodes. Management? ( Questions on Surgical Onco - thyroid) 

A. Total thyroidectomy
B. Total thyroidectomy with Radio active Iodine
C. Total thyroidectomy with central compartment neck dissection
D. Hemithyroidectomy + follow up

 

 

Medullary carcinoma thyroid

Premium MCQ - Thyroid
Q) Medullary carcinoma thyroid, what test is not done (NEET 2019)
a) Calcitonin
b) Glucagon
c) VMA
d) CEA
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Radio active Iodine in Thyroid Cancer

Q) Which of the following is not true about Radioactive Iodine (RAI) use in thyroid cancer? (Thyroid onco) 

a) Screening with RAI  is less sensitive than Thyroglobulin estimation in most differentiated thyroid cancers for detecting metastasis

b) Metastatic differentiated thyroid carcinoma can be detected by  131I in about 50% of patients

c) Current guidelines s recommend RAI after total thyroidectomy only for patients with known distant metastases

d) Hurthle cell cancer des not take up RAI