Related Experiment Video
Updated: Apr 19, 2026

Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
[Bilateral inverted papilloma originating from the frontal sinus]
I Gürkan Keskin1, Murat Topdağ, Kadri İla
1Department of Otolaryngology, Medical Faculty of Kocaeli University, 41380 Umuttepe, Kocaeli, Turkey. dr.kila@gmail.com.
Bilateral inverted papilloma of the frontal sinus is rare. This case study details the successful endoscopic removal of this benign neoplasm, highlighting a rare presentation of nasal obstruction.
Area of Science:
- Otolaryngology
- Neurosurgery
- Oncology
Background:
- Inverted papilloma is a benign neoplasm with high recurrence rates, local aggressiveness, and potential for malignancy.
- Nasal obstruction is the most common symptom associated with inverted papillomas.
Observation:
- A 64-year-old male presented with nasal obstruction.
- The patient was diagnosed with a rare bilateral inverted papilloma affecting both frontal sinuses.
Findings:
- The bilateral inverted papilloma involving the frontal sinus was successfully removed.
- Endoscopic surgery was utilized for the removal of the neoplasm.
Implications:
- This case highlights the importance of considering rare presentations of inverted papilloma.
- Endoscopic surgical techniques offer a viable treatment option for complex sinonasal tumors.
- Further research into the management of bilateral sinonasal inverted papillomas is warranted.
Related Concept Videos
Cranial Bones: Lateral View
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
Nose and Nasal Cavity
Olfactory Receptors: Location and Structure
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....
Cranial Bones: Superior and Posterior View
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
Muscles for Facial Expressions

