Lipofibroadenoma arising in hyperplastic thymic tissue: Possible perivascular origin of lipofibroadenoma. Issue 4 (14th January 2021) - Kurebayashi, Yutaka; Hayashi, Yuichiro; Emoto, Katsura; Kaseda, Kaoru; Asamura, Hisao; Mukai, Kiyoshi; Sakamoto, Michiie