卵円孔開存 らんえんこうかいぞん Meanings Noun patent foramen ovale Kanji 卵 egg. Read as ラン. 円 circle. Read as エン. 孔 aperture. Read as コウ. 開 open. Read as カイ. 存 exist. Read as ソン. Word lists Anatomy Jinuma: Japanese Dictionary · Word lists