Fig. 3From: Primary mucinous cystadenocarcinoma of the renal pelvis misdiagnosed as ureteropelvic junction stenosis with renal pelvis stone: a case report and literature reviewHaematoxylin and eosin staining. a Mucus-secreting cells are arranged in chains and surrounded by abundant extracellular mucus (×400). b The cystically dilated lesion is lined with multi-layered tall columnar mucinous epithelium (×200)Back to article page