Neoplasme os Flashcards

1
Q

Implicare osoasa datorata tumorilor metastatice > 50 ani frecventa

tumori primare care metastazeaza frecvent la nivelul oaselor

A

san

prostata

plamani

rinichi

tiroida

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2
Q

Metastazele tumorale se localizeaza preferential la nivelul

A

oaselor implicate in procesul de hematopoieza

oaselor cu aport bogat de sange

coloana vertebrala

craniu

coaste

bazin

metafize oase lungi

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3
Q

Metastazele cancer de san + prostata pot fi

A

osteoblastice (induc formarea osoasa0

osteolitice (induc resorbtia osoasa)

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4
Q

Metastazele cancerului de plamani + rinichi + tiroida + TGI sunt de obicei

A

osteolitice

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5
Q

Osteom osteoid

→ femur + tibie

A

zona radiotransparenta <1cm

inconjurata de o zona densa de scleroza

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6
Q

Osteocondrom

→ metafiza oaselor lungi

A

excrescenta osoasa sesila / pediculata

nu se evidentiaza cartilajul daca nu prezinta calcificari

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7
Q

Encondrom (condrom)

→ metafiza oaselor tubulare mana + picior

unica / multipla (boala Ollier)

A

zona de radiotransparenta bine demarcata

poate contine arii de calcificari

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8
Q

Encondrom - boala Ollier

A
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9
Q

Fibrom neosifiant

(defect cortical fibros)

→ corticala metafizei distale a femurului / tibiei

A

zona radiotransparenta

bine demarcata

multiloculara

adiacenta corticalei

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10
Q

Tumora cu celule gigante

(osteoclastom)

→ epifiza (distala) femur + radius

→ epifiza (proximala) tibie

dupa inchiderea cartilajului de crestere

A

arie cu extindere excentrica epifizara

in extindere → implica si metafiza

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11
Q

Osteosarcom

→ metafiza

→ 50% femur distal + tibie proximala

A
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12
Q

Condrosarcom

→ zone centrale

→ centuri bazin + umar

A

leziune radiotransparenta permeativa

zone dense de calcificare

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13
Q

Fibrosarcom

→ metafiza oaselor lungi

A

leziune slab delimitata

distructiva

radiotransparenta

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14
Q

Mielom

→ zone de maduva rosie ale scheletului

A

osteopenie

fracturi de compresie coloana vertebrala prin traumatisme minore

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15
Q

Sarcom Ewing

→ diafiza femur

os iliac

tibie

fibula

humerus

coaste

A

leziune osoasa distructiva

aspect de bulb de ceapa prin straturi de neoformatie osoasa periostala

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