TSC1 and TSC2 mutations in patients with lymphangioleiomyomatosis and tuberous sclerosis complex.

Abstract:

BACKGROUND:Lymphangioleiomyomatosis (LAM) is a prominent finding in the setting of tuberous sclerosis complex (TSC). OBJECTIVE:The present study was designed to compare cystic lung changes consistent with LAM in patients with a TSC1 disease-causing mutation, TSC2 disease-causing mutation, or no mutation identified (NMI). METHODS AND RESULTS:We conducted a retrospective review of the chest computed tomography (CT) of 45 female and 20 male patients with TSC and found cysts consistent with LAM in 22 (49%) women and two (10%) men. In the female population, changes consistent with LAM were observed in six of 15 (40%) patients with TSC1, 11 of 23 (48%) with TSC2, and five of seven (71%) with NMI. While the predominant size of cysts did not differ across these three groups, TSC2 women with LAM had a significantly greater number of cysts than did TSC1 patients (p = 0.010). CONCLUSIONS:These findings suggest a higher rate of LAM in TSC1 than previously recognised, as well as a fundamental difference in CT presentation between TSC1 and TSC2.

journal_name

J Med Genet

authors

Muzykewicz DA,Sharma A,Muse V,Numis AL,Rajagopal J,Thiele EA

doi

10.1136/jmg.2008.065342

subject

Has Abstract

pub_date

2009-07-01 00:00:00

pages

465-8

issue

7

eissn

0022-2593

issn

1468-6244

pii

jmg.2008.065342

journal_volume

46

pub_type

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