17/01/2026
Ever wonder how ultrasound helps tell a friendly polyp from a villainous cancer?
🤔👩⚕️ Here’s the quick scoop: benign polyps tend to be focal, well-defined, and nicely contained, whereas cancers often look irregular and invasive. Polyp bumps are usually uniform (isoechoic/hyperechoic) with a smooth outline and a preserved endometrial-myometrial interface. In contrast, cancerous lesions often cause a thickened endometrium with heterogeneous texture and poorly-defined, jagged margins.
In other words, a polyp is like a tidy island on ultrasound, while cancer is more like a ragged coastline breaking through the lining. Plus, polyps are often surrounded by a thin halo and may show a single “feeding” vessel on Doppler, whereas cancers disrupt the normal layers (the “subendometrial halo”) and invade asymmetrically.
🩺
你有没有想过，超声波是如何分辨「友善的息肉」和「危险的癌症」的呢？ 🤔👩⚕️
重点其实很简单：良性的子宫内膜息肉通常呈现为局灶性、边界清楚、结构完整的病灶；而癌症则多半外观不规则、具有侵袭性。
在超声下，息肉常表现为回声均匀（等回声或高回声）、轮廓平滑，且子宫内膜与肌层交界清楚、完整保留。
相反地，恶性肿瘤往往造成子宫内膜增厚，内部回声不均匀，边缘模糊、呈锯齿状。
打个比方来说：
👉 息肉就像一座整齐的小岛，
👉 癌症则更像侵蚀海岸线的崎岖浪潮，突破原有的结构。
此外，息肉周围常可见细薄的晕环（halo），在彩色多普勒下可能出现单一供血血管；
而癌症则会破坏正常的子宫内膜下晕环（subendometrial halo），并呈现不对称的浸润生长。
