Prostat kalsifikasyonları

Özet

Prostat kalsifikasyonları orta ve ileri yaş erkeklerde sık görülür ve benign prostat hiperplazisi ya da kronik inflamasyonla ilişkilidir. BT, prostat kalsifikasyonlarının prostat içindeki yerini ve boyutunu değerlendirmeye olanak sağlar. BT, kalsifik odağın prostat içindeki yerini göstererek prostat kalsifikasyonlarının değerlendirilmesine olanak sağlar. BT, prostat kalsifikasyonlarının prostat içindeki yerini değerlendirmeye olanak sağlar.

Faz ve pencere

Kontrastsız tanısal

Kontrastsız pelvik BT'de prostat parankimi içinde küçük, çok odaklı noktasal veya kümelenmiş hiperdens kalsifikasyonlar görülür; değerlendirme için kontrast fazı gerekmez. Odağın prostatik üretraya, mesane boynuna ve pelvik venlere göre konumu belirlenir.

Önerilen pencereler: Yumuşak doku (G 400 / M 40), Kemik (G 1800 / M 400).

BT bulguları

• Prostat parankimi içinde bir veya daha fazla keskin sınırlı hiperdens odak; küçük odaklar prostatik üretra çevresinde kümelenebilir.
• Prostat kalsifikasyonları merkezi, periüretral, transizyonel veya periferik zonlarda sınıflandırılabilir.
• BT'de prostat sınırı içindeki kalsifikasyon odaklarının prostat içi yerleşimi değerlendirilebilir.
• BT'de prostat içi kalsifikasyonlar ve periprostatik flebolitler görüntülenebilir.
• Büyümüş transizyonel zon ve çevresindeki kalsifikasyonlar genellikle benign prostat hiperplazisi ile ilişkilidir.
• Yaşlı erişkinlerde sıklıkla asemptomatik olarak gelişen ve genellikle benign prostat hiperplazisi ya da kronik inflamasyonla ilişkili olan prostat kalsifikasyonları, tek başına klinik anlam taşımaz ve çoğunlukla tesadüfidir.

Normalde

BT çalışmasında kalsifikasyon saptanmayan 1.525 hasta, kalsifikasyon saptanan hastalarla karşılaştırılmıştır. Kıyaslamada BT, hiperdens odağın prostat içindeki yerini belirlemeye olanak sağlar.

Ayırıcı tanı

Prostatik üretra taşı

BT, prostat kalsifikasyonlarının prostat içindeki yerini değerlendirmeye olanak sağlar.

Mesane taşı

BT, prostat kalsifikasyonlarının prostat içindeki yerini değerlendirmeye olanak sağlar.

Pelvik flebolit

prostat çevresinde görülebilir; BT'de merkezi saydamlık flebolit lehine bir bulgudur.

Vaz deferens veya seminal vezikül kalsifikasyonu

prostatın üst-arka komşuluğundaki tübüler yapı boyunca uzanır, intraprostatik değildir.

Prostat kalsifikasyonları benign bezlerde sık görülmekle birlikte, prostat adenokarsinomu alanlarında da bildirilmiştir.

Tuzaklar

• Prostat kalsifikasyonlarının BT'de prostat içindeki yeri değerlendirilebilir.
• Prostat kalsifikasyonlarının BT'de prostat içindeki yeri değerlendirilebilir.
• BT'de prostat çevresindeki flebolitler de görüntülenebilir.
• Kalsifikasyon varlığı prostat kanserini doğrulamaz veya dışlamaz; malignite değerlendirmesini yalnız kalsiyum odağına dayandırmayın.

Kendini dene

1. Çalışmada analiz için hangi pikseller seçilmiştir?

   • Prostat sınırı içindeki belirginleştirilmiş pikseller
   • Prostat sınırı dışındaki tüm pikseller
   • Yalnız kontrastlanan pikseller
   • Mesane lümeni içindeki pikseller
   Cevabı göster

   Prostat sınırı içindeki belirginleştirilmiş pikseller. Çalışmada analiz için prostat sınırı içindeki belirginleştirilmiş pikseller seçilmiştir.

2. Bu çalışmada BT ile saptanan prostat kalsifikasyonlarının en sık görüldüğü bölge hangisidir?

   • Merkez zon
   • Periferik zon
   • Transizyonel zon
   • Periüretral bölge
   Cevabı göster

   Merkez zon. Merkez zon en sık görülen yerleşimdi (%79,3; tekrarlar dahil). Merkezi zon için verilen sayım, tekrarları da içermektedir.

Kaynaklar

Bu sayfadaki 34 cümle ve 2 quiz sorusu aşağıdaki kaynaklardan alıntılarla otomatik olarak karşılaştırıldı; 19 cümle bu karşılaştırmada düzeltildi (2026-10-09).

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Eğitim amaçlıdır; hasta başında tanı ve tedavi kararının yerine geçmez, tıbbi tavsiye değildir. Metinler yapay zekâ desteğiyle yazıldı ve otomatik bir adımda kaynak alıntılarıyla karşılaştırıldı; bu bir tıbbi doğrulama değildir ve içerik uzman radyolog incelemesinden geçmedi. Klinik kararlarda güncel kılavuzları, kurum protokollerini ve radyoloji raporunu esas alın.