Related Experiment Video
Updated: Jun 6, 2025

Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
Rare kissing antra of the maxillary sinuses: clinical implications
Rowa A Mohamed1, Mohamed S Muneer2, Tarik F Massoud3
1Saint Agnes Medical Center, Fresno, CA, 93720, USA.
Purpose:
To report a rare anatomical variant of the maxillary sinuses, with radiological and clinical emphasis.
Methods:
A 40-year-old male with recurrent acute rhinosinusitis presented to our center for clinical management. A computed tomography scan revealed the presence of an incidental anatomical variant of bilateral maxillary sinuses for which we coin the term "kissing antra".
Results:
Kissing antra appearances on computed tomography consisted of enlarged bilateral palatine recesses of the maxillary antra that met in the midline across a narrow bony septum below the floor of the nasal cavity. The right palatonasal recess angle was markedly acute at 61° instead of the normal 90°.
Conclusion:
Kissing antra of the maxillary sinuses are important for anatomists, radiologists and surgeons to be aware of, both as rare anatomical variants, as well as for their multiple clinical diagnostic and therapeutic implications that we discuss in this report.
More Related Videos
05:54Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla
Published on: October 18, 2021
07:00Identification of OTX1 and OTX2 As Two Possible Molecular Markers for Sinonasal Carcinomas and Olfactory Neuroblastomas
Published on: February 28, 2019
Related Concept Videos
Physical Assessment of the Respiratory Tract I: Health History
Subjective Data
Subjective data provides vital information about the patient's health history and symptoms. This data is typically collected through interviews in which patients describe their experiences, symptoms, and concerns.
Health history and...
Chronic Pharyngitis
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
Epistaxis
Etiology
Possible causes of this condition include high blood pressure, trauma, low humidity, upper respiratory tract infections, allergies, foreign bodies, nasal inhalation of corticosteroids or illicit drugs, excessive use of decongestant nasal sprays, facial or nasal surgery, anatomic malformation, tumors, or systemic...
Tonsillitis I: Introduction
Etiology
Three primary contributing factors have been identified.
Tonsillitis II: Management
Suctioning the Nasopharyngeal Airway
Equipment Required