Intralymphatic histiocytosis in a patient with lung adenocarcinoma treated with pembrolizumab: a case report ============================================================================================================ * Teppei Sugano * Masahiro Seike * Yoko Funasaka * Mai Yoshida * Ryoko Takayama * Ken Okamura * Asuka Nakanishi * Toru Tanaka * Susumu Takeuchi * Rintaro Noro * Yuji Minegishi * Kaoru Kubota * Hidehisa Saeki * Akihiko Gemma