Malignant small cell neuroendocrine tumors of the pelvi-calyceal system are rare, and even more uncommon is their occurrence with concomitant transitional cell carcinoma, in the same renal unit. We present such a case for its unique presentation.

A combination of clinical presentation, serological profile, electromyographic and histopathological features, together with the immunoprofile for HLA-1 and MAC, contribute toward making a diagnosis of inflammatory myopathy.

No abstract