A 24-year-old male presents to a clinic with chronic nasal discharge and occasional headaches. Physical examination reveals atrophic, nasal mucosa and a thinned nasal septum. Which of the following is the most likely cause of his condition?
Ans. C. Substance abuse
Explanation: Adults who present with headaches, chronic nasal discharge, atrophic nasal mucosa, and thinning of the nasal septum are likely to be long-term intranasal cocaine abusers. Other respiratory tract findings associated with the vasoconstrictive effects of intranasal cocaine abuse include nasal septum perforation, oropharyngeal ulcers, and osteolytic sinusitis.