Lung Squamous Cell Carcinoma  (肺鳞状细胞癌)

肺鳞状细胞癌，又称表皮样癌，是一种非小细胞肺癌，起源于气道内壁薄而扁平的细胞，约占所有肺癌的30%。它通常发生于肺中央气道，是非小细胞肺癌的主要亚型之一，与腺癌和大细胞癌并列。虽然早期可能无症状，但常见症状包括咳嗽、胸痛、体重减轻和疲劳；如果癌症扩散到肺部以外，则可能导致吞咽困难或呼吸急促。非小细胞肺癌约占所有肺癌病例的85%，这凸显了鳞状细胞癌在这一群体中的重要性。

Lung squamous cell carcinoma, also known as epidermoid carcinoma, is a type of non-small-cell lung cancer that arises from the thin, flat cells lining the airways, accounting for approximately 30% of all lung cancers. It typically develops in the central air passages of the lungs and is one of the major subtypes of non-small-cell lung cancer, alongside adenocarcinoma and large cell carcinoma. While early stages may be asymptomatic, common symptoms include coughing, chest pain, weight loss, and fatigue; if the cancer spreads beyond the lungs, it may cause difficulty swallowing or shortness of breath. Non-small-cell lung cancers represent about 85% of all lung cancer cases, highlighting the significance of squamous cell carcinoma within this group.

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