Leziuni rosii-albastre
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Leziuni rosii-albastre
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Clasificare• 1 Intravasculare focalizate• Anomalii de dezvoltare• - hemangiomul • Neoplazii• - eritroplazia• 2 Extravasculare ----Petesii si echimoze• - leucemii acute si cronice• - agranulocitoza • - purpura trombocitara• -hemofilia• 3 Intravasculare difuze• - afectiuni metabolice• - afectiuni de etiologie infectioasa• - tulburari imunologice
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Hemangiomul
• Neoplazie vasculara benigna constituita din vase neoformate si dilatate
• Pot fi :• 1 Congenitale( defect de desvoltare embrionara a
vaselor sanguine)prin• proliferarea anormala a celulelor endoteliului
vascular( capilar sau cavernos)• cresterea numarului capilarelor rapida si imediat dupa
nastere si regreseaza spontan• 2 Malformatii vasculare:• capilare,arteriale ,venoase, limfatice • pure• combinate•
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Clinic
• Ambele tipuri de leziuni prezinta:
• Culoare rosie—albastru
• Prin compresie capata tenta albicioasa
• Suprafata leziunii poate fi :neteda, nodulara ,boselata
• localizare pe limba,buze ,mucoasa jugala
• Malformatiile vasculare pot afecta osul
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Hemangioame -Clasificare
• Stelate
• Plane
• Tuberoase
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Angioame stelate
• Mici dilatatii capilare dispuse radiar avind in centru un punct rosu
• Apar de regula la persoane in virsta
• Adesea sunt multiple
• Nu capata extindere prea mare
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Hemangiom stelat
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Angiomul plan
• Se mai numesc si –pete de vin-• Sunt superficiale cuprinzind o suprafata mai
mare sau mai mica de piele sau mucpasa care-si pasreaza caracterele de relief
• Coloratia este variabila: ros –palid,ros-violaceu, albasru inchis
• Coloratia dispare prin vitropresiune• Se intilnesc angioame pe traectul de inervatie a
unui nerv—Sindromul Struge –Veber(angioame venoase ale leptomeningelui ,pe aceeasi parte a fetei,tulburari neurologice,leziuni orale si oculare
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Angiom tuberos
• Imbraca asect de tumora• Apare la nastere• Poate stationa o perioada de timp dupa care cresc in
volum progresiv prin proliferarea endoteliului si dilatatia vaselor
• Unele angioame devin monstruoase altele regreseaza• Pot fi: simple cu aspect de tumori limitate• cavernoase –lacuri sanguine• Coloratie rosie –violacee bombeaza,sunt de consistenta
moale,se reducla presiune,la aplecare isi maresc volumul,la efort cresc in volum
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Aspecte clinice incadrate in sindroame
• Sindromul Sturge –weber
• Sindromul Klippel-Trenaunay-Weber
• Sindromul Rendu-Osler-Weber
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Eritroplazia ( Maladia Bowen)
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Eritroplazia
• Termenul se refera la orice zona a mucoasei ce are un aspect rosu,catifelat si care nu poate fi incadrata pe baza aspectului clinc sau histopatologic in nicio alta leziune
• Este considerata de catre O.M.S ca singura leziune premaligna a mucoasi bucale
• Histologic poate fi considerata carcinom in situ sau carcinom invaziv
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• Etiologia este necunoscut
• Se incrimineaza factiorii cauzali ai neoplaziilor maligne
• Se intilneste mai frecvent la fumatori si bautori de alcooluri disilate
• Apare in special la barbati intre 40-60 ani
• Este considerata ca o forma de debut asimptomatica a cancerului bucal
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Clinic
• Poate fi :• Leziune izolata• Asociata cu leucoplazia (leucoplazia patata)• Clasificare:• 1 Forma hipertrofica( granulara)• 2 Forma atrofica( negranulara) • Sau:• 1 Forma omogena• 2 Forma eritroplazica• 3 Eriroplazia patata
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Forma hipertrofica
• Culoare rosie vie ,catifelata,cu suprafata neregulata,granulara,reliefata fata de restul mucoasei
• La periferie sau pe suprafata sa se constata insule hiperkeratozice cu suprafete diferite
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Forma atrofica
• Are culoare rosie-vie, suprafata neteda,fara zone de hiperkeratoze
• Apare ca o zona de inflamatie dar prezinta un aspect atrofic denivelat fata de nivelul mucoasei de vecinatate
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• Forma eritroplazica• Pata rosie presarata cu zone izolate
leucoplazice Apare in zonele de mare risc oral• Forma patata• contine granulatii albe sau pete albe
dispersate pe toata suprafata leziunii rosii• Forma omogena:• zona coplet rosie,cu suprafata neteda sau
ctifelata bine delimitata de mucoasa din jur Este asimptomatica
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