A patient with spontaneous retroperitoneal hemorrhage may present with a number of clinical signs and symptoms.


Lenk's triad:

(1) acute flank pain

(2) tenderness to palpation at site of hemorrhage

(3) symptoms of acute blood loss (hypotension, pallor, etc)


Additonal findings may include:

(1) acute abdominal pain

(2) hematuria


Laboratory findings:

(1) falling hemoglobin

(2) coagulation abnormalities (if due to coagulopathy or anticoagulant therapy)


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