Make no mistake: these were not the rocks Jennifer Lopez was singing about in the early noughties.

You might say it was no staggering matterhorn when doctors discovered a very rare stone in the nasal cavity of a 15-year-old girl.

ENT specialists were rocked when she nosed her way into their clinic after being treated on numerous occasions with antibiotics for a long-standing right-sided runny nose.

What their CT caving expedition revealed is a true rarity on the list of differentials: a large rhinolith, or ‘stone of the nose’, had grown in a shape they described as a “giant staghorn” in the right-side of her nasal passages.