P40 expression in small cell lung cancer: The presence of p40 ‐positive cells does not always indicate squamous differentiation

ConclusionsSome resected SCLCs express p40 focally. This result suggests that the presence of positive p40 cells does not exclude a diagnosis of SCLC. Thus, small biopsy or cytology specimens with p40 ‐positive cells must be diagnosed carefully.

Source: Thoracic Cancer - April 6, 2019 Category: Cancer & Oncology Authors: Naoki Nakajima, Akihiko Yoshizawa, Koki Moriyoshi, Makoto Sonobe, Toshi Menju, Shinji Sumiyoshi, Hiroshi Date, Hironori Haga Tags: ORIGINAL ARTICLE Source Type: research