Posterior Inferior Turbinate Hypertrophy (PITH)

Area of Science:

• Otolaryngology
• Rhinology
• Anatomy

Background:

• Posterior inferior turbinate hypertrophy (PITH) is an observable condition during nasal endoscopy.
• The clinical significance of PITH remains poorly understood.
• This study investigates the prevalence and potential associations of PITH.

Purpose of the Study:

• To determine the prevalence of PITH in patients undergoing nasal endoscopy.
• To explore potential correlations between PITH and sinonasal symptoms or conditions.
• To identify associated physical findings with PITH.

Main Methods:

• A cross-sectional study of 391 new patients in a tertiary rhinology clinic.
• Nasal endoscopy was performed, and the presence of PITH was recorded.
• Patients completed the 22-Item Sinonasal Outcome Test (SNOT-22) and Nasal Obstruction Symptom Evaluation (NOSE) questionnaires.

Main Results:

• PITH was identified in 62 subjects (15.9%), with a higher prevalence in females.
• Allergic rhinitis and chronic rhinosinusitis prevalence were similar in PITH and non-PITH groups.
• Nonpurulent exudate from the posterior inferior turbinate was significantly more common in patients with PITH (83.9% vs 14.3%, P < .001).
• No significant differences in SNOT-22 or NOSE scores were found between groups.

Conclusions:

• PITH is a common physical finding in rhinology practice.
• The etiology and precise clinical impact of PITH require further investigation.
• Associated nonpurulent posterior exudate may be a key clinical sign linked to PITH.