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Minerva Urologica e Nefrologica 2002 June;54(2):131-3

Copyright © 2002 EDIZIONI MINERVA MEDICA

language: English

Retroperitoneal lipoma. Unusual presentation with detrusor instability

Forte F., Maturo G., Catania A., Sorrenti S., Gemma D., Foti N., Vanni B., Virgili G., Vespasiani G., De Antoni E.

From the Department of Urology University of Rome “Tor Vergata” - Rome *Department of Surgical Sciences **Section of Medical Oncology Department of Experimental Medicine University of Rome “La Sapienza” - Rome


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Retroperitoneal lip­o­mas are a het­er­o­ge­ne­ous ­group of me­sen­chy­mal tu­mors. They are usu­al­ly ­large and oc­cur ­most fre­quent­ly in the ret­ro­per­i­to­neal, per­i­neal and pel­vic re­gions. Lipomas ­grow slow­ly sur­round­ing the ret­ro­per­i­to­neal and pel­vic or­gans, ­with a dis­place­ment of bow­el and vas­cu­lar ax­is. A ­case of a 61-­year-old ­male pa­tient ­which re­ferred uri­nary fre­quen­cy, ur­gen­cy and noc­tu­ria is pre­sent­ed. Urodynamics ev­i­denced a de­tru­sor in­stabil­ity in a low ca­pac­ity blad­der. CT ­scan dem­on­strat­ed a blad­der ­dome com­pres­sion due to a ­huge ret­ro­per­i­to­neal ­mass ex­tend­ing ­from the ­right he­pat­ic ­lobe to the hy­po­gas­tric re­gion and the ­right ­thigh. Surgical com­plete re­sec­tion was per­formed: his­tol­o­gy dem­on­strat­ed a lip­o­ma ­with ar­e­as of ­well dif­fer­en­tiat­ed myx­oid de­gen­er­a­tion. After sur­gery the ir­ri­ta­tive uri­nary symp­toms dis­ap­peared. This is the ­first ­case de­scribed in lit­er­a­ture of de­tru­sor in­stabil­ity due to blad­der com­pres­sion by ret­ro­per­i­to­neal lip­o­ma.

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