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Fark ne? İyi huylu ve kötü huylu tümörler - zdmaa Fark ne? İyi huylu ve kötü huylu tümörler
İyi bir tümör yok. Bu mutasyona uğramış ve işlevsiz hücre kitleleri ağrıya ve şekil bozukluğuna neden olabilir, organları istila edebilir ve muhtemelen tüm vücuda yayılabilir. Ancak tüm tümörler kötü huylu veya kanser öncesi değildir ve hepsi agresif değildir. İyi huylu tümörler, bazen ağrılı ve potansiyel olarak tehlikeli olsalar da, kötü huylu tümörler kadar tehdit oluşturmazlar. Philadelphia’daki Hastanemizde patolog olan MD Fernando Yu Garcia, “Kötü huylu hücrelerin yayılma [diğer organları istila etme] olasılığı daha yüksek” diyor ve “Daha hızlı büyüyorlar ve yerel organları istila etme ve yok etme olasılıkları daha yüksek” diyor.
“İyi huylu tümörler genellikle istila etmezler. Genellikle normal dokuyu bir tarafa iterler.” – Fernando Yu Garcia, patolog
DNA kusuru Tümörler, hücrelerin DNA’sındaki, özellikle hücrelerin büyümelerini kontrol etme yeteneğini düzenleyen genlerdeki bir kusurun bir sonucu olarak büyür. Bazı hasarlı genler, kötü hücrelerin intihar ederek yeni, sağlıklı hücrelere yer açmasını da önleyebilir. Dr. Garcia, “Hücre ölümünün düzenlenmesi çok önemlidir” diyor. “Programlanmış hücre ölümü bozulursa hücre ne zaman öleceğini bilemez ve devam eder. Hücre bunu engellemeyi öğrenir ve çoğalma yeteneğini geliştirirse tümörler çok daha hızlı büyür.” Bu mutasyonların bazıları hızlı ve kontrolsüz büyümeye yol açarak hızla yayılabilen ve yakındaki organ ve dokulara zarar verebilen tümörlere neden olur. diyor. Diğer mutasyonlar daha az agresiftir ve kanserli olmayan yavaş büyüyen tümörler oluşturur. Dr. Garcia, “Polipler genellikle istila etmez” diyor. Genellikle normal dokuyu bir tarafa iterler.
Birçok insan yaşamları boyunca iyi huylu tümörler taşır. Nevi veya benler, tedavi gerektirmeyen iyi huylu tümör türleridir. Diğer iyi huylu tümör türleri şunları içerir:
Adenomlar : Bu kitleler sindirim sisteminin yüzeylerinde oluşur. Phoenix yakınlarındaki hastanemizde gastroenterolog olan Jeffrey Weber, “Klasik bir adenom olan kolon polipinin hastanın yaşamı boyunca kansere dönüşme olasılığı yalnızca yüzde 1’dir” diyor. Fibroidler : Bağ dokusu tümörleri herhangi bir organda bulunabilir. Fibroid tümörlere vücutta oluştukları yerin adıyla rahim miyomları denir. Malignite : Çoğu iyi huylu tümörden daha agresif olma eğilimindedir ve yakındaki dokuları ve organları istila edebilir. Ama hareket etmiyorlar. Hemanjiomlar Bu tümörler, derideki veya iç organlardaki kan damarlarından bir hücre topluluğudur. Deride ben benzeri bir renk değişikliği olarak görünebilir ve genellikle kendi kendine kaybolur. Lipomlar : Bu yuvarlak, yumuşak, yağlı tümörler çoğunlukla boyun veya omuzlarda bulunur. Leiomyomlar : Amerika Birleşik Devletleri’ndeki en yaygın jinekolojik tümör rahimde bulunabilir. Büyümesi hormonlar tarafından yönlendirilir. Tümörün kanserli olduğunu nasıl anlarsınız? Bir tümörün iyi huylu veya kötü huylu olup olmadığını belirlemenin tek yolu patolojik incelemedir. İyi huylu tümörler nadiren kötü huylu olurken, bazı adenomlar ve leiomyomlar kansere dönüşebilir ve çıkarılması gerekir. Polipler ve miyomlar da büyümelerine izin verilirse hasara neden olabilir ve ameliyat veya polipektomi gerektirebilir. Ancak iyi huylu tümörler biraz tedavi gerektirebilirken, onları oluşturan hücreler agresif kanser hücrelerinin bazı özelliklerini paylaşıyor, diyor Dr. Garcia.
“Kanser evrim geçirdi” diyor ve iyi huylu tümörlerin aynı şekilde gelişmediğini de sözlerine ekliyor. “Bir kanser hücresi ölmemeyi öğrenir. Sonra çoğalmayı öğrenir. Sonra istila etmeyi öğrenir. Sonra nasıl yayılacağını öğrenir. Hücreler kanserin yapı taşlarıdır.”
Merak etmeye devam edin , kanser tam olarak nedir? Daha fazla bilgi edin.
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