Abstract

ABSTRACT:
Multilocular cystic renal cell carcinoma
(MCRCC) is a rare clear cell type of renal cell
carcinoma. Although cytologyically and
cytogenetically MCRCC is similar to clear cell
carcinoma, histology and behavior differ
markedly. Prognosis in MCRCC is excellent as
the tumour is of consistently low grade and
surgical resection is curative. We report here a
case of MCRCC in 44 year old female presented
with right loin pain, was miss-diagnosed as renal
hydatid cyst for 2years. Local excision of the
tumor mass only was done with no recurrence
after 30 months of follow up after. The
differentiation between renal hydatid cyst and
MCRCC may be difficult clinically and
radiologically.The tumor grows very slowly.The
outcome of the lesion is not affected adversely
by large tumor size. There is an increasing belief
that MCRCC should be renamed and reclassified
to indicate much more favorable prognosis than
the conventional clear renal cell carcinoma.
Key Words: Multilocular cystic renal cell
carcinoma, clear cell renal cell carcinoma, renal
hydatid cyst.