A lung tumor with features of salivary duct carcinoma. Issue 4 (1st February 2021) - Sato, Keisuke; Matsumura, Mai; Anzai, Yoko; Arai, Hiromasa; Sekiya, Motoki; Sugiyama, Misaki; Kataoka, Toshiaki; Koike, Chihiro; Ohashi, Kenichi; Okudela, Koji