General Surgery - Thyroid Radiology Flashcards by Ryan Loke | Brainscape

Q

What are the ATA guidelines for thyroid nodules?

A

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Q

What makes a lesion benign

A

Completely cystic with well defined wall

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Q

WHat makes a lesion very low suspicion

A

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Q

What makes a lesion low suspicion

A

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Q

WHat makes a lesion intermediate suspicion

A

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Q

What makes a lesion high suspicion

A

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Q

WHat is the indication for a thyroid scan

A

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Q

Indication for thyroid scan in children

A

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Q

Pros and Cons of Technitium scan

A

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Q

Describing lesions on thyroid

A

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Q

What is the diagnosis?

A

Thyroid Agenesis

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Q

Describe

A

Thyroglossal cyst
Thymus

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Q

What is pendred syndrome

A

Pendred syndrome is caused by the lack of a protein called pendrin, which is important in the kidney, ear and thyroid to keep salt levels balanced. Without enough pendrin, the ion levels become unbalanced and cause hearing and balance issues, a swollen thyroid and less commonly electrolyte imbalances.

Sensorineural hearing loss

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Q

Describe

A

Hot focus
Surrounding thyroid parenchyma uptake is lower than salivary gland – uptake depends on TSH. If TSH is high, uptake intensity is high. hyperfunctioning nodule, TSH is low, so uptake low
Hyperfunctioning solitary thyroid nodule/adenoma

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Q

A

Hyperthyroid with right large thyroid nodule

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Q

A

Butterfly shaped
Hyperfunctioning comapred to salivary glands
Graves

Q

A

Remaining thyroid tissue after removal

Q

A

Absent thyroid gland

Q

Indication of each modality

A

Q

Description of parathyroid

A

Ovoid hypoechoic
Transverse = round

Q

Indication for parathyroid scan?

A

Q

Agents for parathyroid scan?

A

tc-99 pertech/sestamibi

Q

A

Digital subtraction image can be used to detect parathyroid adenoma

Q

A

Thyroid adenoma

Q

A

implantation of parathyroid adenomatosis

Q

summary?

A