Imaging Of The Neck Flashcards
(36 cards)
Border of the anterior triangle
S - inferior of the mandible
L - medial border of the SCM
M - midline of the neck
Boundaries of the carotid artery
S - posterior digastric muscle
L - medial border SCM
I - superior belly omohyoid
What are the contents of the carotid triangle
Common carotid artery
Internal jugular vein
Hypoglossal and vagus nerve
Borders of the muscular triangle
S-hyoid bone
M - midline of neck
SL - omohyoid
IL - SCM
Contents of the muscular triangle
Infrahyoid strap muscles
Pharynx
Thyroid gland
Parathyroid gland
Submandibular border
S - body of mandible
A - anterior digastric
P - posterior digastric
Contents of the submandibular triangle
Submandibular gland
Submandibular lymph nodes
Facial artery and vein
This forms the base of the submental triangle
Mylohoid musclest
Muscle content of posterior triangle
Omohyoid inferior belly Vertebral muscle Splenius capitis Levator scapulae Scalene muscles
Nerve content of the posterior triangle
Accessory nerve cn 11
Cervical plexus
Phrenic nerve
Brachial plexus
What crosses the occipital triangle
Accessory nerve
Complete cartilagenous ring
Thicker and taller posteriorly
Cricoid bone
Considered as the danger space
Retropharyngeal space
Lymphatic tissue of PMS
Waldeyer lymphatic ring
Remains inside the middle layer
Inflammatory septa evident
< 30yr old
Lymphoma
Lymphoid hyperplasia
Notochordal remnant
Midline NP in PMS
Tornwaldt cyst
From minor salivary glands in PMS
Soft palate most common location
Well circumscribed enhancing mass
Benign Mixed Tumor
Invasive mass into deep space
SCCA
PPS lesion that infects PMS
Waldeyer’s ring
PPS lesion that infects the masticator space
Odontogenic infection
What is the equivalent portion of the suprazygomatic MS
Temporal fossa
what are important features of the MS
Perineural tumor
Enter inferior alveolar nerve
Leaves via mandibular nerve
Key mechanism of intracranial spread
Hypertrophy of the MS
Noctural teeth grinding
Tmj syndrome
Molar tooth origin
First sign is trismus
Odontogenic abscess