nbme 2 blk4 q8 - step2ck2010

[ArchivalUser]

7. A 65-year-old woman has a 6-month history of
progressive
irritability, palpitations, heat intolerance, frequent
bowel movements, and a
6.8-kg (15-lb) weight loss. She has had a neck mass
for more than 10
years. 131I scan shows an enlarged thyroid gland with
multiple areas of
increased and decreased uptake. Which of the
following is the most
likely diagnosis?

A
) Defect in thyroxine (T4) biosynthesis

B
) Graves' disease

C
) Multinodular goiter

D
) Riedel's thyroiditis

E
) Thyroid carcinoma

F
) Thyroiditis

G
) Toxic adenoma

H
) Triiodothyronine (T3) thyrotoxicosis


A
) Acute gastrointestinal

[ArchivalUser]

B??????

[ArchivalUser]

B Graves' disease

[ArchivalUser]

CCCC Multinodular goiter, has inc and dec I131 uptake, graves, should have diffuse I313 uptake, as all gland take up I131

[ArchivalUser]

c multinodular

[ArchivalUser]

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[ArchivalUser]

i think its toxic adenoma coz this patient has hyperthyroid symptoms.
Toxic multinodular goitre causes hyperthyroid symptoms. but in the option its given just multinodular and not toxic multinodular.

what do u say guys?

[ArchivalUser]

mmmmmmmmm
Toxic adenoma, will uptake all I131 in area of adenoma hyperfunctioning, rest of gland should be supress and would not uptake I131, qs said multiple areas of incr and decr uptake of I131, Graves's will take it in a evenly diffuse fashion as all gland is hyper, multinodular you are correct qs, should say toxic multunodular goiter. , but from choices multinodular I think is the one will take I 131 in thar manner..................

[ArchivalUser]

CC