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 ESTERA LUCACI medic rezident an I

cancerul bronho-pulmonar

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ESTERA LUCACI

medic rezident an I

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  Carcinoamele bronho-pulmonare reprezinta cea maifrecventa cauza de mortalitate prin cancer in SUA

  In Romania, ocupa locul intai in mortalitatea la barbati si

locul al 4-lea la femei

  85% din cancerele bronho-pulmonare sunt datorate

fumatului

  Alti factori de risc: azbest,radiatii ionizante, radon, unii

carcinogeni chimici, susceptibilitatea genetica

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 Cancer bronho-pulmonar central:

¡  Originea in epiteliul bronsiilor principale,lobare¡  Dezvoltare endobronsica,exobronsica si mixta

 Cancer bronho-pulmonar periferic:

¡  Originea in epiteliul bronsiilor segmentare,subsegmentare si a bronsiolelor

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 Carcinoame ,,non-small cell” (fara celulemici)

v  Carcinomul epidermoid (scuamos)

v  Adenocarcinomul

v  Carcinomul nediferentiat cu celule mari

v  Carcinomul bronsiolo-alveolar

 Carcinoame cu celule mici (small cell)

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Ø Tumori centrale

v Carcinom epidermoid

v Carcinom cu celule mici

Ø Tumori periferice

v Adenocarcinom

v Carcinom cu celule mari

v Carcinom bronsiolo-alveolar

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 Semne de suspiciune

§  Fumator>40 de ani

§  Modificarea caracterului tusei la un vechi

tusitor

§ Episoade de pneumonie obstructiva

§  Sputa discret hemoptoica

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 Simptome caracteristice

a) Tumora endobronsica sau centrala:•  Tuse

•  Hemoptizie

•  Cornaj

• 

Tiraj•  Dispnee obstructiva

•  Pneumonita obstructiva (febra, tuse productiva)

b)Tumora primara periferica:

•  Evolutie mai lunga asimptomatica

•  Durere

•  Tuse iritativa

•  Dispnee restrictiva

 

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 Radiografia standard

 TC

 IRM

 Scintigrafia

 

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 Dezvoltarea endo- si/sau exobronsica a

tumorii

 Situarea pe bronsiile mari (central) sau

bronsiile mici (periferic)

 Prezenta unor complicatii cum ar fi:

suprainfectarea,necroza-excavatia, colectia

pleurala, adenopatia satelita,interesarea

organelor mediastinale

 

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  In stadiul initial

¡  obstructie bronsica cu ventil expirator

¡  hiperinflatie localizata la nivelul teritoriuluiventilat de bronsia afectata

  Rx toracica

¡  hipertransparenta, cu dimensiuni crescute

  CT-vizualizeaza tumora

  Bronhoscopia cu biopsie- certifica diagnosticul

  Diagnostic diferential

¡  Astm bronsic in criza

¡  Emfizem pulmonar 

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 In stadiu avansat

¡ atelectazie prin obstructie bronsica

completa

 Rx toracica

¡ opacitate sistematizata,triunghiulara,intensitate mare, omogena, retractila

 CT

¡ tumora

¡ atelectazia

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Pacient, 63 ani, Carcinom epidermoid 

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 Rx torace

¡  Opacitate nodulara, localizata la nivelul

hilului,care face corp comun cu mediastinul

¡ contur neregulat,cu prelungiri in parenchimulpulmonar

 CT

¡  Masa de tesut moale cu contur neregulat¡  cu prelungiri spre parenchimul adiacent

¡  omogena- dimensiuni mici

¡  heterogena- voluminoasa

 

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Pacienta, 73 ani, Carcinom cu celule mici

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 Rx torace

¡  Opacitate rotunda, de intensitate mare,

omogena sau heterogena¡  contur polilobat,cu prelungiri in parenchim, fara

legatura aparenta cu hilul

 CT¡  Masa de tesut moale, imprecis delimitata, cu

prelungiri in parenchimul pulmonar

 

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 Metastaza pulmonara hematogena unica

 Chist hidatic pulmonar

 Infiltrat tuberculos precoce Tuberculom

 Hematom

 

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Pacient, 82 ani, Carcinom epidermoid 

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Pacienta, 75 ani, Adenocarcinom 

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Pacienta, 73 ani, Adenocarcinom, expunere la azbest 

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Pacient, 48 ani, Adenocarcinom

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  Apare mai ales in cancerul periferic printr-un procesde necroza ischemica

  Rx torace si CT

¡  Imagine hipertransparenta cu perete gros

¡  contur intern anfractuos

¡  contur extern neregulat

¡  Imagine hidroaerica

  Diagnostic diferential

¡  Caverna tuberculoasa

¡  Abcesul pulmonar partial evacuat

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Pacient, 68 ani, Carcinom epidermoid

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Pacienta, 73 ani, Carcinom bronsiolo-alveolar

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  Clinic -sindromul Claude Bernard Horner

-dureri la nivelul membrului superior

  Rx torace¡  Opacitate situata la nivelul varfului

pulmonar

¡  Osteoliza arcurilor anterioare sau

posterioare ale primelor coaste

  CT

  IRM-metoda de electie

¡  aprecierea invaziei plexului brahial si

a canalului spinal

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Sistemul de stadializare TNM pentru cancerul bronho-pulmonar 

a 7-a editie

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Stage T3 tumors. Chest CT scan shows a primary mass with satellite nodules in the right lower lobe

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 STADIUL I

Chirurgie (+/- RT adjuvanta; +/- CHT

adjuvanta)

RT exclusiva este indicata la pacientii

inoperabili din cauze medicale

 STADIUL II

Chirurgie (+/- RT adjuvanta; +/- CHT

adjuvanta)

RT exclusiva este indicata la pacientii

inoperabili din cauze medicale

 STADIUL III

III A

Boala nerezecabila

•  CHT+RT

Boala rezecabila

•  Chimio-Radioterapie neoadjuvanta

urmata de chirurgie

III B•  CHT+RT

 STADIUL IIIB cu colectie pleurala + IV

Chimioterapie paliativa

Tratament simptomatic

 

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 Boala limitata:

¡ Chimioterapie (cisplatin+etoposid 4-6 cicluri)asociata cu radioterapie mediastino-pulmonara

¡  Radioterapie craniana profilactica

 Boala extinsa:

¡  Chimioterapie paliativa

 

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  Tumorile maligne primare ale plamanului reprezinta una

dintre cele mai frecvente localizari ale cancerului mai ales

la barbat, si una dintre cele mai importante cauze de

mortalitate

  Diagnosticul lor in fazele incipiente ramane grevat de

serioase dificultati,intrucat nici simptomatologia clinica,

nici aspectul radiologic nu sunt caracteristice in aceste

faze

  Prezenta unei imagini suspecte obliga la efectuarea unui

examen CT si a unui examen bronhoscopic cu prelevare

bioptica, proceduri ce pot furniza elemente de certitudine

 

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  D. Negru, “Radiologie si imagistica medicala”, 2007

  V. Grancea, “Bazele radiologiei si imagisticii medicale”, 1996

  D. Radulescu, “Radiologie medicala”, 1983

  V.M. Nagy, “Propedeutica oncologica”, 2008

  Collins, Jannette; Stern, Eric J., Chest Radiology: TheEssentials, 2nd Edition, 2008

  American Cancer Society. Cancer Facts and Figures 2011.

Atlanta: American Cancer Society; 2011.

  http://radiographics.rsna.org/content/30/5/1163.full

  http://flylib.com/books/en/3.98.1.109/1/

  http://www.ajronline.org/content/194/5/W354.full 

  http://www.chestradiology.net/main.cgi?tut=/

tumors.cgi&frame=main&s=1&t=Adenocarcinoma&mod=all 

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