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Abdominal seeding of renal cell carcinoma: radiologic, pathologic, and prognostic features

 Seung Hyun Park  ;  Young Taik Oh  ;  Dae Chul Jung  ;  Nam Hoon Cho  ;  Young Deuk Choi  ;  Sung Yoon Park 
 Abdominal Radiology, Vol.42(5) : 1510-1516, 2017 
Journal Title
 Abdominal Radiology 
Issue Date
Abdomen/diagnostic imaging* ; Abdomen/pathology* ; Adult ; Aged ; Carcinoma, Renal Cell/diagnostic imaging ; Carcinoma, Renal Cell/pathology* ; Carcinoma, Renal Cell/surgery ; Female ; Humans ; Kidney Neoplasms/diagnostic imaging ; Kidney Neoplasms/pathology* ; Kidney Neoplasms/surgery ; Male ; Middle Aged ; Neoplasm Grading ; Neoplasm Seeding* ; Neoplasm Staging ; Prognosis ; Retrospective Studies ; Survival Rate
Carcinomatosis ; Implant ; Prognosis ; Renal cell carcinoma ; Seeding
PURPOSE: We analyzed radiologic and histologic characteristics, and prognosis of abdominal seeding from renal cell carcinoma (RCC).

METHODS: Consecutive 25 patients with RCC and histologically or radiologically diagnosed abdominal seeding were analyzed. No patient had another type of malignancy. Histologic subtype, Fuhrman grade, sarcomatoid differentiation, and T-stage of primary tumors were assessed. Pre- or postoperative presentation of seeding was investigated. Median survival time and RCC-specific survival rates were evaluated.

RESULTS: Of 25 patients, 15 (60%) died and 4 (16%) were hopelessly discharged (median follow-up time, 6 months; range 1-62 months). Histologic subtypes were clear cell (76%, 19/25), papillary (16%, 4/25), chromophobe (4%, 1/25), and poorly differentiated (4%, 1/25). Fuhrman grades were 4 (48%, 12/25), 3 (36%, 9/25), 2 (12%, 3/25), and unknown (4%, 1/25). T-stage of the four patients with grade 2 or unknown was 3a. Sarcomatoid differentiation and postoperative occurrence were found in 32% (8/25) and 80% (20/25), respectively. Median survival time was 13 months, and 1-year, 2-year, and 3-year RCC-specific survival rates were 51%, 41%, and 31%, respectively.

CONCLUSION: Abdominal seeding may occur in various subtypes of RCC with high Fuhrman grade including sarcomatoid differentiation or high T-stage, and appears to be related to poor prognosis.
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1. College of Medicine (의과대학) > Dept. of Pathology (병리학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Urology (비뇨의학교실) > 1. Journal Papers
Yonsei Authors
Park, Sung Yoon(박성윤)
Park, Seung Hyun(박승현)
Oh, Young Taik(오영택) ORCID logo https://orcid.org/0000-0002-4438-8890
Jung, Dae Chul(정대철) ORCID logo https://orcid.org/0000-0001-5769-5083
Cho, Nam Hoon(조남훈) ORCID logo https://orcid.org/0000-0002-0045-6441
Choi, Young Deuk(최영득) ORCID logo https://orcid.org/0000-0002-8545-5797
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