Related Experiment Video
Updated: Jul 11, 2026

Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
Foreign body pyriform sinus: an unusual presentation.
Prakash Adhikari1, Rabindra Bhakta Pradhananga, Tilak Raj Limbu
1Department of Otorhino-Laryngology and Head and Neck Surgery, T.U. Teaching Hospital, Kathmandu, Nepal. prakash_ooz@hotmail.com
A chicken bone foreign body in the left pyriform sinus was difficult to locate with imaging and endoscopy. Lateral pharyngotomy successfully removed the impacted bone, highlighting a potential diagnostic challenge.
Area of Science:
- Otolaryngology
- Medical Imaging
- Surgical Procedures
Background:
- Foreign body ingestion is a common occurrence, particularly in the upper aerodigestive tract.
- The pyriform sinus is a potential site for impaction of sharp foreign bodies, such as fish or chicken bones.
- Accurate localization is crucial for safe and effective removal.
Observation:
- A case of a chicken bone foreign body lodged in the lateral wall of the left pyriform sinus is presented.
- Initial diagnostic imaging, including soft tissue neck X-ray and CT scan, visualized the foreign body.
- Repeated attempts at rigid esophagoscopy failed to identify or retrieve the impacted object.
Findings:
- The foreign body was ultimately detected and successfully removed via lateral pharyngotomy under general anesthesia (GA).
- This case highlights the limitations of standard endoscopic approaches in certain deep-seated or unusually positioned foreign bodies.
- Surgical intervention proved necessary when less invasive methods were unsuccessful.
Implications:
- Lateral pharyngotomy can be a valuable surgical option for removing deeply impacted foreign bodies in the pyriform sinus when endoscopic visualization fails.
- Clinicians should consider a broader differential diagnosis and surgical approaches for persistent foreign body impaction symptoms.
- This case underscores the importance of correlating imaging findings with endoscopic visualization and considering alternative removal techniques.
Related Concept Videos
Anatomy of Respiratory System I: Upper Respiratory Tract
Nose and nasal cavity
The nose and nasal cavity represent the main external openings of the respiratory tract.
Respiratory System Abnormal Finding I: Inspection and Percussion
Inspection Findings
During an inspection, several findings may suggest the presence of respiratory distress or disease. Pursed-lip breathing, where exhalation is slowed by...
Pyloric Obstruction
Nose and Nasal Cavity
Brain Abscess l: Introduction
Atypical Pneumonia
