TY - JOUR ID - TI - Multilocular Cystic Renal Cell Carcinoma, Miss-Diagnosed Clinically as Renal Hydatid AU - Niema Hamad Al-Heeti AU - Raji H. Al-Hadithi PY - 2013 VL - 12 IS - 3 SP - 460 EP - 465 JO - Iraqi Postgraduate Medical Journal المجلة العراقية للاختصاصات الطبية SN - 83601608 98932708 AB - ABSTRACT: Multilocular cystic renal cell carcinoma(MCRCC) is a rare clear cell type of renal cellcarcinoma. Although cytologyically andcytogenetically MCRCC is similar to clear cellcarcinoma, histology and behavior differmarkedly. Prognosis in MCRCC is excellent asthe tumour is of consistently low grade andsurgical resection is curative. We report here acase of MCRCC in 44 year old female presentedwith right loin pain, was miss-diagnosed as renalhydatid cyst for 2years. Local excision of thetumor mass only was done with no recurrenceafter 30 months of follow up after. Thedifferentiation between renal hydatid cyst andMCRCC may be difficult clinically andradiologically.The tumor grows very slowly.Theoutcome of the lesion is not affected adverselyby large tumor size. There is an increasing beliefthat MCRCC should be renamed and reclassifiedto indicate much more favorable prognosis thanthe conventional clear renal cell carcinoma.Key Words: Multilocular cystic renal cellcarcinoma, clear cell renal cell carcinoma, renalhydatid cyst.

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