What is Antrum Highmore?
The maxillary sinus (or antrum of Highmore) is a paired pyramid-shaped paranasal sinus within the maxillary bone which drains via the maxillary ostium into the infundibulum, then through hiatus semilunaris into the middle meatus. It is the largest of the paranasal sinuses.
Why is maxillary sinus called antrum of Highmore?
There are 4 paranasal sinuses situated around the nose and ultimately, they also drain into the nose. Maxillary sinus is the largest sinus and is also the first sinus to develop. Described by Nathenial Highmore (1651). That’s why, known as antrum of Highmore.
What is Frontoethmoidal sinusitis?
Introduction. Frontoethmoidal cells are anterior ethmoid air spaces that alter the frontal sinus drainage pathway (FSDP) and may encroach into the frontal ostium and sinus [1–3]. The presence of these cells increases the difficulty of frontal sinus surgery [1–6].
What is Frontoethmoidal?
A frontoethmoidal mucocele is a paranasal sinus cyst-like lesion (mucocele) lined with respiratory mucosa. The frontal and frontoethmoidal regions are reportedly the most common locations for paranasal sinus mucocele formation 1. They are thought to arise from obstruction of normal sinus drainage.
Where is antrum located?
Antrum: the lower portion (near the small intestine), where the food mixes with gastric juice. Pylorus: the last part of the stomach, which acts as a valve to control the emptying of the stomach contents into the small intestine.
How many ethmoid sinuses are there?
The ethmoid sinuses or ethmoid air cells of the ethmoid bone are one of the four paired paranasal sinuses….
| Ethmoid sinus | |
|---|---|
| Frontal view of paranasal sinuses | |
| Coronal section of nasal cavities. | |
| Details | |
| Nerve | posterior ethmoidal nerve |
What is Mucopyocele?
Mucocele is defined as mucus filled cavity that can occur in the oral cavity, appendix, gallbladder, paranasal sinuses or lacrimal sac.[1] A mucocele that gets secondarily infected is termed as a mucopyocele and it has been reported to occur in the paranasal sinuses and appendix.[2] The incidence of mucoceles in the …