RT Journal Article T1 Congenital infiltrating lipoma of the upper limb in a patient with von Willebrand disease A1 Lasso Vázquez, José María A1 España, A. A1 Zudaire, M.I. A1 Álava, E. de A1 Bazán, A. AB Infiltrating lipoma is a rare variety of lipoma, characterized by an infiltration of the adipose tissue of the muscles. Infiltrating lipomas are usually classified in two groups: intermuscular infiltrating lipoma and intramuscular infiltrating lipoma. Most are acquired, and they usually appear in middle-aged individuals. Exceptionally, they are congenital. In such cases they are not related to other diseases. We report an 8-year-old boy with a congenital infiltrating lipoma of the upper limb and von Willebrand disease. Both diseases are linked to an alteration in chromosome 12, but this clinical association seems to be random rather than causal. PB Oxford University Press SN 0007-0963 YR 2000 FD 2000-06 LK https://hdl.handle.net/20.500.14352/131596 UL https://hdl.handle.net/20.500.14352/131596 LA eng NO J.M. Lasso, A. España, M.I. Zudaire, E. De Alava, A. Bazán, Congenital infiltrating lipoma of the upper limb in a patient with von Willebrand disease, British Journal of Dermatology, Volume 143, Issue 1, 1 July 2000, Pages 180–182, https://doi.org/10.1046/j.1365-2133.2000.03612.x DS Docta Complutense RD 18 mar 2026