What is the nomenclature for these kind of renal stones?
These kind of calculi are called 'staghorn calculi', or 'coral calculi', owing to their typical shape.
What is the most common composition of a staghorn calculus?
Struvite (magnesium ammonium phosphate), mixed with calcium phosphate in an approximate 70:30 ratio.
Dense calculi taking the shape of pelvicalyceal system are seen bilaterally.