28 May 2021
: Case report 
Anaplastic Transformation of Differentiated Papillary Thyroid Carcinoma Presenting as Cauda Equina Syndrome
Unusual clinical course
Jennifer M. van Griethuysen1EF*, Ian Proctor2E, Suganya Sivabalasingham1EDOI: 10.12659/AJCR.932002
Am J Case Rep 2021; 22:e932002
Figure 1. (A) Sagital T2-weighted magnetic resonance imaging (MRI) of lumbar-sacral spine showing cauda equina compression at L4 level at first presentation of differentiated thyroid cancer. (B) Sagital T2-weighted MRI of lumbar spine showing progressive disease, complex abscess formation, and cauda equina compression at L4 level at point of anaplastic thyroid cancer transformation.