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  • Title: Clinical features of lymphangioleiomyomatosis complicated by renal angiomyolipomas.
    Author: Mizushina Y, Bando M, Hosono T, Mato N, Nakaya T, Ishii Y, Yamasawa H, Sugiyama Y.
    Journal: Intern Med; 2011; 50(4):285-9. PubMed ID: 21325759.
    Abstract:
    OBJECTIVE: Renal angiomyolipomas (R-AMLs) are major complications of lymphangioleiomyomatosis (LAM). The objective of this study was to better understand the influence of R-AMLs in patients with LAM on the prognosis and other clinical factors related to respiration, and to investigate the management of R-AMLs in patients with LAM. PATIENTS AND METHODS: We retrospectively investigated the clinical features of 7 patients with LAM [4 were TSC (Tuberous sclerosis complex)-LAM and 3 were S (sporadic)-LAM] complicated by R-AMLs admitted to our hospital from 1997 to 2008. RESULTS: All patients were females and the mean age at diagnosis of LAM was 40.7 years (31.7 years for TSC-LAM and 52.7 years for S-LAM). Although 5 patients had symptoms related to R-AMLs, only 1 patient experienced symptoms related to R-AMLs at the time of diagnosis. Five patients had bilateral and 2 patients had unilateral R-AMLs. R-AMLs ruptured in 4 cases (3 patients were TSC-LAM) including 2 patients in whom they ruptured bilaterally, and who underwent bilateral nephrectomy. In 1 case, unilateral R-AMLs grew larger and appeared on the other side during the follow-up period. CONCLUSION: Although only rare cases of LAM show symptoms related to R-AMLs initially, R-AMLs are a notable complication. To avoid nephrectomy, R-AMLs should be diagnosed when they are small and should be followed up carefully by periodic echograms or CT scans.
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