Published in:
01-01-2021 | Classics in Abdominal Radiology
The Poké Ball sign in mature ovarian cystic teratoma
Published in: Abdominal Radiology | Issue 1/2021
Login to get accessExcerpt
The “Poké Ball sign” is a characteristic radiological finding of mature ovarian cystic teratomas. It is defined by the presence of a single globular structure floating at a fat–fluid interface mimicking the appearance of a Poké Ball (Fig. 1) [1], which is a spherical device used in the Pokémon® series to catch and store Pokémons [2]. This appearance is a variant of the “floating ball sign”, which refers to the presence of multiple (sometimes more than 100) mobile nodules within the cystic\fatty content of an adnexal cystic teratoma [1, 3].
Fig. 1
A Poké Ball. The red and white metallic hemispheres are similar to the fat–fluid level of a mature ovarian cystic teratoma, with the central button (the white circle) representing the nodule floating along the interface
× ![]()
…