THYROID US

موضوع: THYROID US الإثنين أبريل 08, 2024 8:50 pm

THYROID
...........................
LOBES:
L 40 - 6 mm
AP 20 - 30 mm
W 3 - 18 mm
V (LxWxTx 0.52)
= 18.6 + - 4.5 ml
Reactive
vs
metastatic
Cx LNs :
Cut offs of nodal size to diff reactive from metast LNs :
(5 mm,8 mm,
10 mm)..
Echogenicity :
Central echogenic hilum
Hypoechoic cortex.
# (malignant nodes show distortd hilum plus focal or diffuse cortical thickenning more than 3 mm).
Shape :
Ovoid Eliptical shape
S/L axis ratio : (less than 0.5)
L/S axis ratio :
(more than 2)
# No calcification or nexrosis in a normal LN.
Margin : unsharp
Max TSD
more than 5 mm
Vascularity :
90% of Normal LNs with Max TD more than
5 mm show hilar vascularity OR avascular.
Any form of thyrd enlargement is called a goiter.
Simple (diffuse) goiter is S/G *symm enlarged *with normal echogeniity.
* generalized thrd hyperplasia
*(increased thrd volume). .US Thrd volume is more than 18 ml in fem & more than 25 ml in male.
* homgen, isoecho, or mild hyperec..
* fine or middle- grained echotex.
* well defined margin.
* absence of nodules or calcifications
* normal vasc.
* v large goiters dislocate adjacentvorgans
*markedly asymmetric goiter dislocates trachea..

موضوع: رد: THYROID US الأربعاء أبريل 24, 2024 5:24 pm

موضوع: رد: THYROID US الأربعاء أبريل 24, 2024 5:40 pm

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