ADENOMAS HIPOFISIARIOS Flashcards

1
Q

QUE SON

A

TUMORES NEUROENDOCRINOS PRIMARIOS EN HIPOFISIS
10% DE LAS NEOPLASIAS IC
RARA VEZ MALIGNOS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

CLASIFICACION

A

microadenomas: menos de 10 mm
Macroadenomas: mas de10mm (MÁS COMUN 2:1)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

HORMONAS

A

65% MICRO: secretores
Prolactina: prolactinoma
GH: acromegalia
ACTH, TSH
MACRO: usualmente NO secretores

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

MACROADENOMAS

A

Se extienen a la región supraselar
Efecto de masa: >Quiasma “signo del 8 o muñeco de nieve”
3er ventriculo
Silla turca y seno cavernoso
Seno esfenoidal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

MICROADENOMAS

A

Limitados a la silla turca
NO efecto de masa
Exc de produccion de una o mas hormonas
Busqueda signos indirectos en imagen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

IMAGEN

A

SIEMPRE CONTRASTE
HIPERVASC HIPOFISIS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

TC

A

MUY poco util micro
Macro :)
Calcificciones +

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

RM microadenomas

A

“INCIDENTALOMAS”
Hipointenso en T2, iso en T1
retardo en captación de contraste

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

MACROADENOMAS RM

A

Iso a materia gris
Lx grandes pueden ser heterogeneas debido a areas de cambio quistico, necrosis o hemorragia
Compresión al quiasma
MUÑECO DE NIEVE
Contraste: HIPERCAPTACIÓN

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly