Staghorn calculi (coral calculi)
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Haematuria and recurrent urinary infections
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The renal calculus fills and conforms to the left renal calices, resembling the horns of a deer (staghorn calculus).
Staghorn calculi (also sometimes called coral calculi) obtain their characteristic shape by forming a cast of the renal pelvis and calyces, thus resembling the horns of a stag.