Case 3
Basic clinical data 51-year-old Caucassian male Tumor of the kidney 17 x 16 x 12 cm Widely necrotic (80% of tumorous mass) Vital part was grey with hemorrhagias on cut section
???
Locust vs. Trixalis or Acrida
Immunohistochemistry Positive reactions AE1-AE3 EMA Vimentin Negative reactions HMB45 S-100 CAM 5.2 Actin S
Mucinous tubular and spindle cell carcinoma
Synonyms Loopoma RCC with lower-nephron differentiation Low grade collecting duct RCC Spindle and cuboidal RCC Low grade spindle cell RCC
Mucinous tubular and spindle cell carcinoma Age range 17-82 years Females are affected more frequently Usually disclosed by ultrasonographic examination for different reasons Favourable prognosis- low-grade tumors Only 2 metastatic cases in the world literature
Mucinous tubular and spindle cell carcinoma Differential diagnostics: Papillary RCC Sarcomatoid RCC Angiomyolipoma Metastasis of adenocarcinoma