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Updated: Oct 19, 2025

Induction and Micro-CT Imaging of Cerebral Cavernous Malformations in Mouse Model
Published on: September 4, 2017
Mesenteric cysts, lymphatic leak, and cerebral cavernous malformation in a proband with KRIT1-related disease
Ashley Moller-Hansen1, Stephanie Huynh1, Cornelius F Boerkoel1
1Department of Medical Genetics and Provincial Medical Genetics Program, University of British Columbia and Women's Hospital of British Columbia, Vancouver, British Columbia, Canada.
Abstract:
Cerebral cavernous malformations (CCMs) of the central nervous system arise sporadically or secondary to genomic variation. Established genetic etiologies include deleterious variants in KRIT1 (CCM1), malcavernin (CCM2), and PDCD10 (CCM3). KRIT1-related disease has not been described in conjunction with lymphatic defects, although lymphatic defects with abnormal endothelial cell junctions have been observed in mice deficient in HEG1-KRIT1 signaling. We report a proband with CCMs, multiple chylous mesenteric cysts, and chylous ascites with leaky lymphatic vasculature. Clinical short-read exome sequencing detected a disease-associated KRIT1 variant (NM_194456.1:c.[1927C>T];[=], p.(Gln643*)). We postulate an expansion of KRIT1-related disease to include lymphatic malformations and lymphatic endothelial dysfunction.
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