<prompt> Rhinolith can causeNasal obstructionFoul smelling dischargePainAll of the above  <response>: Ans. is d i.e., All of the above Rhinoliths are mineralized calcified foreign bodies in the nasal cavity that are a chance finding at anterior rhinoscopy. Rhinolith forms around the nucleus of a small exogenous foreign body or blood clot when calcium and phosphate deposit around it, i.e. mineralization around a foreign body. Clinical features include:- More common in adults Presents as unilateral nasal obstruction and foul smelling discharge often blood stained Ulceration of the surrounding mucosa may lead to frank epistaxis and neuralgic pain. Other symptoms may be headach, sinusitis and epiphora. 