Volume 20, Number 2Case ReviewClinical Relevance of Petit’s Triangle: A Forgotten LandmarkScott HalperinJulian SpectorDavid PennBarry ZisholtzThis rare case details a right-sided hydronephrotic kidney herniated through Petit’s triangle. Petit’s triangle is an anatomical landmark that is usually not clinically significant and only alluded to during multiple-choice examinations. This case describes the clinical ramification of this area of weakness and allows us to revisit and relearn the anatomy, and its relevance in clinical practice. [Rev Urol. 2018;20(2):112–114 doi: 10.3909/riu0796] © 2018 MedReviews®, LLCHerniaPetit’s triangleHydronephrotic kidney