Özet
Künt travma, kaburga-kostokondral hasar veya torakotomi sonrası akciğer parankimi göğüs duvarındaki zayıf alandan dışarı çıkabilir; öksürükle belirginleşen kitle de başvuru bulgusu olabilir. BT, akciğerin toraks içindeki parankimle devamlılığını, interkostal defekti, herni boynunu ve komşu kemik hasarını gösterir. Küçük herniler inspiratuvar BT’de belirgin olmayabilir; ekspirasyon veya Valsalva sırasında protrüzyon artabilir. BT’de herni açıklığı, komşu kırıklar ve olası parankimal etkilenme değerlendirilmelidir.
Faz ve pencere
- Kontrastsız tanısal
- Akciğer penceresinde aerasyonlu parankimin interkostal kas defektinden cilt altına doğru toraks içindeki akciğerle devamlılığı; yumuşak doku penceresinde herni kesesi, boynu ve komşu kas-kaburga yapıları değerlendirilir. Kontrast fazı herniyi göstermek için gerekli değildir; dar boyunda vasküler sıkışma/perfüzyon kuşkusu varsa kontrastlı değerlendirme ayrıca düşünülebilir.
- Kemik algoritması tanısal
- BT, herni boynunu, komşu kırıkları veya cerrahiye bağlı göğüs duvarı bozulmasını gösterebilir; çok düzlemli rekonstrüksiyonlar anatomik değerlendirmede önemlidir.
Önerilen pencereler: Akciğer (G 1500 / M -600), Yumuşak doku (G 400 / M 40), Kemik (G 1800 / M 400).
BT bulguları
- İnterkostal kas defekti — göğüs duvarında kas liflerinin kesintisi veya kaburgalar arasında genişlemiş açıklık.
- Plevra ile örtülü akciğer protrüzyonu — aerasyonlu akciğer dokusu göğüs kafesi sınırının dışına taşar ve intratorasik akciğerle devam eder.
- Herni boynu — parankimin toraks dışına geçtiği interkostal açıklık; sagittal ve koronal planda boyun anatomisi netleşebilir.
- Herni kesesi — cilt altı veya yumuşak doku konturunun altında kalan dışa çıkmış plevra-akciğer bileşimi.
- Kaburga/kostokondral hasar — defekt komşuluğunda kırık, ayrışma veya cerrahi kemik değişikliği görülebilir.
- Parankim kompresyonu — herni boynunda bronşiyal veya vasküler bası ve parankimal etkilenme bulunup bulunmadığı BT’de değerlendirilir.
- Travmatik akciğer hernisi başka göğüs yaralanmalarıyla birlikte bulunabilir; bir olgu bildiriminde herniye eşlik eden büyük yumuşak doku hematomu, kaburga kırığı ve hemotoraks tanımlanmıştır.
Normalde
Normal göğüs duvarında interkostal kaslar kaburgalar arasında süreklidir ve plevra-akciğer toraks sınırının içinde kalır. Karşı tarafın aynı kaburga seviyesindeki kas kalınlığı ve göğüs duvarı konturunu kıyaslayın; herni boynunda kas kesintisi ve dışarı taşan, akciğerle devamlı aerasyonlu doku arayın.
Normal BT ile kıyasla
Aynı bölgenin, kaynak veri setinde patoloji içermediği belirtilen bir BT incelemesini kesit kesit kaydırın; organ sınırlarını açarak anatomiyi hasta görüntüsüyle karşılaştırın. Küçük rastlantısal bulgular tümüyle dışlanmamıştır.
Kaynak: TotalSegmentator v2.01 veri seti (Wasserthal ve ark., Radiology: Artificial Intelligence 2023), CC BY 4.0, vaka s1278; organ sınırları veri setinin otomatik segmentasyonundan, birleştirilerek sadeleştirildi. Görüntüler 2,5 mm kesit aralığına yeniden örneklendi.
Ayırıcı tanı
- Pnömotoraks, travmatik akciğer hernisiyle birlikte bulunabilir.
- Subkutan amfizem, akciğer hernisinde bildirilen hava kaçağı ilişkili komplikasyonlar arasındadır; tanıda BT’de herniye akciğerin intratorasik parankimle devamlılığı gösterilir.
- Bir olgu bildiriminde interkostal akciğer hernisine büyük bir yumuşak doku hematomu eşlik etmiştir.
- Akciğer kontüzyonu, akciğer hernisinden farklı bir parankimal yaralanma türüdür.
- Diyafram hernisi
- abdominal içerik diyaframdaki defektten toraksa geçer; akciğer hernisinde ise akciğer dokusu göğüs duvarı defektinden dışarı protrüze olur.
Tuzaklar
- İnspirasyonda küçük veya aralıklı herni belirgin olmayabilir; belirgin klinik şişlik varsa standart kesitlerde herni boynunu çok düzlemli izleyin.
- Herni kesesi ile diğer bulguların ayrımında, plevra ile örtülü akciğer parankiminin intratorasik parankime devamlılığı ve bronkovasküler yapıların kesede devam ettiği doğrulanmalıdır.
- Yalnız dış konturu tariflemek açıklığı göstermez; defekti, herni boynunu, plevral örtüyü ve komşu kırığı birlikte lokalize edin.
Kendini dene
BT’de göğüs duvarı defektinden geçerek intratorasik akciğer parankimiyle devamlılık gösteren aerasyonlu doku hangi tanıyı destekler?
Cevabı göster
Akciğer hernisi. Akciğer hernisinde aerasyonlu akciğer, göğüs duvarı defektinden geçerek intratorasik akciğer parankimiyle devamlılık gösterir.
BT'de göğüs duvarı defektinden dışarı protrüze olan yapının akciğer hernisi olduğunu doğrulayan en önemli bulgu hangisidir?
Cevabı göster
Plevra ile örtülü akciğer parankiminin intratorasik parankimle devamlılığı. Kaynaklar, akciğer hernisinin tanı kriterinin, plevra ile örtülü akciğer parankiminin göğüs duvarı veya toraks girişindeki defekt üzerinden intratorasik parankimle anatomik devamlılık göstermesi olduğunu belirtir.
İlgili konular
Kaynaklar
Bu sayfadaki 33 cümle ve 2 quiz sorusu aşağıdaki kaynaklardan alıntılarla otomatik olarak karşılaştırıldı; 10 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.