Pterygopalatine fossa notes

The vessel ramifies within the maxilla to vascularize the maxillary sinus, molars, and premolars as well as the neighboring gingiva. It is located behind the posterior wall of the maxillary sinus, bordered by the pterygoid plates posteriorly and the greater sphenoid wing and middle cranial fossa superiorly.

The posterior wall is constituted by the anterior surface of the pterygoid process. Finally, the pterygopalatine fossa contains the pterygopalatine ganglion or sphenopalatine Meckel ganglion.

The pterygopalatine fossa: imaging anatomy, communications, and pathology revisited

Connections The lateral pterygoid is regarded as the key muscle of theinfratemporal region because its relationships supply Pterygopalatine fossa notes reasonable ideaabout the layout of structures in this region.

Case 2 A year-old woman was referred for evaluation 6 weeks after developing complete vision loss in the right eye that occurred during 36 hours. The CT scan showed a well-circumscribed PPF mass that had thinned and anteriorly displaced the posterior wall of the maxillary sinus Figure 1.

When the PPF needs to be addressed, the standard procedure is through a Caldwell-Luc approach, violating the anterior and posterior walls of the maxillary sinus and exposing the PPF for microscopic or headlight evaluation.

Pterygopalatine fossa

Postsynaptic parasympathetic fibers leave the ganglion and distribute with branches of the maxillary division of cranial nerve V. The radiologic appearance and clinical history were suggestive of an infiltrative process in the PPF.

Infratemporal Fossa

Maxillary Nerve The maxillary nerve, the next section V2 of the trigeminal nerve is only sensory. Activities Lateral pterygoids of 2 sides depress the mandible opens the mouth by pulling forwards the condylar processes of the mandible and the articular discs of the temporomandibular joints.

Further elevation of the mucosa over the lateral nasal wall allowed identification of the sphenopalatine vascular pedicle exiting the sphenopalatine foramen, and dissection was continued superior to this to avoid vascular injury.

Superior labial branches supply the skin and mucus membrane of the upper lip.

Pterygopalatine Fossa

The upper smaller head appears from the temple surface and crest of the higher wing of the sphenoid bone. These fibers are secretomotor in function. Postganglionic parasympathetic fibers derived from the ganglion ride along and distribute with branches of the maxillary division of the trigeminal nerve.

No bone erosion was present. It can also result in irreversible changes in the maxillary sinus, with resultant chronic sinusitis and the possibility of an oroantral fistula. The third patient had a history of adenoid cystic carcinoma of the lacrimal gland, and was found to have new-onset facial numbness.

Final pathological examination showed no abnormal tissue. Results of otolaryngologic examination were normal. Purohit Find articles by Bela S.Notes; constrictor, superior pharyngeal: medial pterygoid plate, pterygoid hamulus, pterygomandibular raphe, mylohyoid line of mandible (V2) within the pterygopalatine fossa; preganglionic axons of the greater petrosal n.

The Pterygopalatine Fossa

synapse here; postganglionic sympathetic axons of the deep petrosal n. pass through the otic ganglion without. May 26,  · The pterygopalatine fossa (PPF) is a small, clinically inaccessible, fat-filled space located in the deep face that serves as a major neurovascular crossroad between the oral cavity, nasal cavity, nasopharynx, orbit, masticator space, and the middle cranial fossa.

Due to its inherent complex. Aug 08,  · Temple Fossa, Temporomandibular Joint and Pterygo-palatine Fossa. The infratemporal fossa is the space underneath the base of the skull, between ramus of the mandible and the side wall of the pharynx.

Together via a gap deep to the zygomatic arch it interacts with the temporal fossa. It’s also /5(46). No notes for slide. Pterygopalatine fossa 1. passes anteriorly and traverses the infratemporal fossa.

Endoscopic Transnasal Approach to the Pterygopalatine Fossa

It passes over the lateral pterygoid muscle and enters the pterygopalatine fossa. The pterygopalatine part of the maxillary artery, its third part, passes through the pterygomaxillary fissure and enters the pterygopalatine fossa.

Mar 18,  · The third, or pterygopalatine portion, of the maxillary artery enters the pterygopalatine fossa from the infratemporal fossa via the pterygomaxillary fissure.

Maxillary artery and its distribution in the deep face: Lecture Notes In Dentistry. The pterygopalatine fossa is a bi-lateral, cone-shaped depression extending from the infratemporal fossa to the nasal cavity via the sphenopalatine is located between the maxilla, sphenoid and palatine bones.

Pterygopalatine fossa notes
Rated 0/5 based on 8 review