Abstract
Brambilla and colleagues first described the clinicopathological features of basaloid carcinoma of the lung in 1992, which is now classified as a variant of squamous cell carcinoma or large cell carcinoma in the World Health Organization classification. Basaloid squamous cell carcinoma (BSC) is rare and its associated prognosis is reportedly poor. Between January 2006 and December 2013, 9 out of 553 cases of lung cancer surgically resected in our hospital were pathologically diagnosed as BSC. They comprised 6.4% squamous cell carcinomas and 1.6% whole lung cancers during the period. In this article, the authors analyzed the clinicopathological features and prognosis of 9 BSC patients. Two with a pure basaloid pattern showed a relatively early recurrence. No significant difference in 5-year survival was seen between BSC and non-BSC.