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Trends of presentation and clinical outcome of treated renal angiomyolipoma

Authors
 Kyo Chul Koo  ;  Won Tae Kim  ;  Won Sik Ham  ;  Jin Sun Lee  ;  Hee Jeong Ju  ;  Young Deuk Choi 
Citation
 YONSEI MEDICAL JOURNAL, Vol.51(5) : 728-734, 2010 
Journal Title
YONSEI MEDICAL JOURNAL
ISSN
 0513-5796 
Issue Date
2010
MeSH
Adult ; Angiomyolipoma/pathology* ; Angiomyolipoma/surgery* ; Angiomyolipoma/therapy ; Female ; Humans ; Kidney Neoplasms/pathology* ; Kidney Neoplasms/surgery* ; Kidney Neoplasms/therapy ; Male ; Middle Aged ; Retrospective Studies ; Treatment Outcome
Keywords
Angiomyolipoma ; tuberous sclerosis ; kidney
Abstract
PURPOSE: The purpose of this study is to set guidelines for the management of renal angiomyolipoma (AML), clinical prognosis according to tumor size, in association with tuberous sclerosis complex (TSC), multiplicity, radiographic finding, and treatment modality.

MATERIALS AND METHODS: Between March 1998 and October 2008, 129 out of 254 patients with AML who underwent surgical intervention or angioembolization were enrolled. Diagnosis of AML was determined by the presence of a low attenuated component on CT imaging or by pathological confirmation. Indications of treatment were intractable pain, hematuria, suspicion of malignancy, large tumor size, spontaneous rupture, and radiographically equivocal tumors in which a differential diagnosis was needed to rule out malignancy. Parameters including age, sex, tumor size, multiplicity, radiographic characteristics, association with TSC, and treatment modality were reviewed.

RESULTS: Age at presentation was 50.6 years and mean tumor size was 3.5 cm. Presentation symptoms were flank pain, hematuria, spontaneous rupture, and fatigue. 97 (75.2%) patients were incidentally discovered. 100 (77.5%) were females. 68 (52.7%) underwent nephron-sparing surgery (NSS), 35 (27.1%) radical nephrectomy, and 26 (20.2%) angioembolization. TSC was accompanied in 12 (9.3%) patients. No patient developed renal function impairment during the mean follow-up period of 64.8 months. Patients with TSC presented at a younger age, along with larger, bilateral, and multiple lesions.

CONCLUSION: Significant differences in clinical manifestations and treatment outcomes were noted in respect to tumor characteristics, association with TSC, and treatment modality. Considering the benign nature of AML, these parameters ought to be considered when deciding upon active surveillance or prophylactic intervention.
Files in This Item:
T201002397.pdf Download
DOI
10.3349/ymj.2010.51.5.728
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Urology (비뇨의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Yonsei Biomedical Research Center (연세의생명연구원) > 1. Journal Papers
Yonsei Authors
Koo, Kyo Chul(구교철) ORCID logo https://orcid.org/0000-0001-7303-6256
Ju, Hee Jeong(주희정)
Choi, Young Deuk(최영득) ORCID logo https://orcid.org/0000-0002-8545-5797
Ham, Won Sik(함원식) ORCID logo https://orcid.org/0000-0003-2246-8838
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/101554
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