Saddle nose deformity
More common causes
Tuberculosis
Syphilis
Cocaine use disorder
Less common causes
Sarcoidosis
Lepromatous leprosy
Nasal trauma
Mucormycosis
Congenital syphilis
Eosinophilic granulomatosis with polyangiitis
Granulomatosis with polyangiitis
Relapsing polychondritis
Uncommon causes
Nasal septal hematoma
Nasal septal abscess
Extranodal NK/T-cell lymphoma
Lethal midline granuloma