Diffusion-weighted MR imaging of mucin-rich mucinous tubular and spindle cell carcinoma of the kidney: a case report.

Mucinous tubular and spindle cell carcinoma (MTSCC) is a rare indolent subtype of renal cell carcinoma, which has variable magnetic resonance (MR) imaging features due to histomorphologic diversity. Diffusion-weighted MR imaging has shown its ability to differentiate benign and malignant renal neoplasms in some recent studies and can be a useful adjunct to routine MR sequences in ambiguous cases. We present a histopathology proven case of MTSCC highlighting the role of diffusion-weighted imaging in guiding the surgical management.