Tumor-to-tumor metastasis from appendiceal adenocarcinoma to an ovarian mature teratoma, mimicking malignant transformation of a teratoma: a case report

• Main Authors: Mitsutake Yano (Author), Tomomi Katoh (Author), Tetsuya Hamaguchi (Author), Eito Kozawa (Author), Mei Hamada (Author), Koji Nagata (Author), Masanori Yasuda (Author)
• Format: Book
• Published: BMC, 2019-08-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Abstract Background Tumor-to-tumor metastasis (TTM) is a rare but well-documented phenomenon that is defined as metastasis in a histologically distinct tumor. Ovarian mature teratomas (OMTs) can coexist with various cancers by malignant transformation, which may make it difficult to distinguish thes...