Inverted papilloma in the sphenoethmoidal recess

Area of Science:

• Otolaryngology
• Nasal Tumors
• Pathology

Background:

• Inverted papilloma is a benign nasal tumor typically originating from the lateral nasal wall.
• It presents risks of local invasion, recurrence, and malignant transformation.
• Sphenoethmoidal recess involvement is uncommon and usually secondary to sphenoid sinus disease.

Observation:

• This case presents an inverted papilloma in an exceptionally rare location: the sphenoethmoidal recess.
• The tumor arose solely from the sphenoethmoidal recess, without any involvement of the sphenoid sinus.

Findings:

• This is the first reported case of an isolated sphenoethmoidal recess inverted papilloma in the medical literature.
• The tumor's origin was confirmed to be exclusively within the sphenoethmoidal recess.

Implications:

• This case expands the known anatomical distribution of inverted papillomas.
• It highlights the importance of considering isolated sphenoethmoidal recess origins for this tumor type.
• Further research may be needed to understand the specific factors contributing to this rare presentation.