Pankreasın Benign Neoplazmları
Özet
Pankreasın benign (iyi huylu) neoplazileri ve psödotümöral lezyonları, karmaşık yapıları nedeniyle klinikte malignite ile sıkça karıştırılabilen, doğru teşhisi kritik önem taşıyan hastalıklardır. Bu lezyonların ayrımı, hastaları gereksiz cerrahi morbiditeden korumak veya gereken müdahaleyi geciktirmemek adına hayati bir rol oynamaktadır. Yazıda; invaziv karsinom öncülü olan PanIN, germ hücre kaynaklı matür teratomlar, genç kadınlarda sık görülen solid psödopapiller tümörler (SPT), damarsal kökenli hemanjiomlar ve sinir kılıfı kaynaklı schwannomlar gibi çeşitli yapılar detaylandırılmaktadır. Ayrıca, yağ dokusu birikimiyle karakterize lipomlar, lenf kanallarından gelişen lenfanjiomlar ve fibröz doku malformasyonu olan hamartomlar ele alınmaktadır. Psödokistler gibi pankreatit komplikasyonları ile groove pankreatit gibi inflamatuar süreçler de ayırıcı tanıda önemli yer tutmaktadır. Teşhis sürecinde USG, BT ve MRI gibi görüntüleme yöntemlerinin yanı sıra, biyopsi imkanı sunan EUS (Endoskopik Ultrasonografi) en değerli araçlardan biri olarak öne çıkmaktadır. Tedavi yaklaşımları genellikle lezyonun tipine göre konservatif izlem veya cerrahi rezeksiyon arasında değişmekle birlikte, çoğu benign lezyonda prognoz oldukça iyidir.
Benign neoplasms and pseudotumoral lesions of the pancreas are conditions that can be frequently confused with malignancy in clinical practice due to their complex structures, making accurate diagnosis critically important. Distinguishing these lesions plays a vital role in protecting patients from unnecessary surgical morbidity or ensuring that required interventions are not delayed. The text details various entities such as PanIN, a precursor to invasive carcinoma; mature teratomas of germ cell origin; solid pseudopapillary tumors (SPT) common in young women; vascular hemangiomas; and nerve sheath-derived schwannomas. Additionally, lipomas characterized by fatty tissue accumulation, lymphangiomas developing from lymphatic channels, and hamartomas, which are fibrous tissue malformations, are discussed. Inflammatory processes like groove pancreatitis and pancreatic complications such as pseudocysts also hold a significant place in differential diagnosis. In the diagnostic process, imaging methods like USG, CT, and MRI are utilized, with EUS (Endoscopic Ultrasonography) emerging as one of the most valuable tools due to its biopsy capability. While treatment approaches generally vary between conservative follow-up and surgical resection depending on the lesion type, the prognosis for most benign lesions is quite favorable.
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