Hay Fever (Allergic Rhinitis): Or something else? Differential Diagnosis

Respiratory System (J00-J99)

  • Endocrine rhinitis – for example, during hormonal changes in pregnancy or when taking hormonal medication during menopause (menopause).
  • Hyperreflexive rhinitis – triggered by disturbed function of the autonomic nervous system.
  • Idiopathic rhinitis – rhinitis with unknown cause.
  • Postinfectious rhinitis – after viral or bacterial infections.
  • Rhinitis atrophicans – disease of the nose accompanied by atrophy (tissue loss), is also known as ozaena (stinky nose) (symptoms: yellowish-green coatings in the nose on, smelling sweet and foul). Primary ozaena is believed to be hereditary, secondary ozaena may have various causes (tumors of the nasopharynx; malformations of the nasal septum; abuse of xylometazoline – decongestant nasal drops).
  • Rhinitis in rhinoliths – rhinitis in nasal stones.
  • Rhinitis in tumors of the nasal cavity.
  • Rhinitis medicamentosa – triggered by various medications such as:
  • Rhinitis sicca anterior – inflammation in the anterior part of the nose resulting in dry mucous membrane.
  • Specific rhinitis – for example, in tuberculosis (consumption), sarcoidosis (synonyms: Boeck’s disease; Schaumann-Besnier’s disease) – systemic disease of connective tissue with granuloma formation or in syphilis (hard chancre).
  • Toxic-irritant rhinitis – triggered by chemicals such as chlorine or cigarette smoke.
  • Nonspecific granulomatous rhinitis – rhinitis with nodules due to inflammation.

Infectious and parasitic diseases (A00-B99).

Neoplasms – tumor diseases (C00-D48)

  • Nasopharyngeal carcinomas (odds ratio of rhinitics to non-rhinitics was 2.29-fold increased in cancer patients)

Environmental exposures – intoxications

  • Chlorine
  • Cigarette smoke