Pharyngeal Mucosal Space Flashcards
1
Q
Tornwaldt Cyst
A
- Notochord remnant, midline
- Simple fluid or proteinaceous
- Covered my mucosa anteriorly and bounded by longus muscles posteriorly
- No clinical significance
2
Q
Retention Cyst
A
- Simple Fluid or proteinaceous
- Discrete plane b/w cyst and constrictor muscle
- Can be in lateral nasopharyngeal recess, obstruct Eustachian tube
- Do NOT touch lesion
3
Q
Tonsillar Inflammation
A
- Striated pattern of enhancement
- Enlargement, surrounding edema
- May have peritonsillar phlegmon, which demonstrates central enhancement and without significant peripheral enhancement
4
Q
Peritonsillar Abscess
A
- Peritonsillar fluid collection without central enhancement
- Peripheral enhancing rim
- Can have exuberant reactive inflammation of aero digestive tract mimicking abscesses
- Can rupture out of tonsillar fossa (through superior constrictor muscle and middle layer of deep cervical fascia)
5
Q
Benign Mixed Tumor (BMT)
A
- Oval/round, well-circumscribed, submucosal
- T2 hyperintense (usually)
- Homogeneous enhancement (usually)
- Palate»_space;> oropharynx > nasopharynx
- No invasion, erosion
6
Q
Minor Salivary Gland Malignancy (MSGM)
A
- ACCa > MECa > ADCa (adenocarcinoma)
- Hard palate»_space; soft palate, base of tongue»_space; nasal cavity, sinus
- T2 hyperintense (!!) if less cellular, can be T2 hypo if cellular with worse prognosis
- Enhancing
- Infiltrative, perineural spread (!), osseous erosion
7
Q
Non-Hodgkin Lymphoma (NHL)
A
- Can look like either BMT or SCCa (can look like anything) so Bx is necessary
- Usually arise Waldeyer ring
- Nodal involvement (50%) typically without central necrosis
- Usually high cellularity (T2 hypo, restricts). Usually enhances
- Usually infiltrative, Usually invasive
8
Q
Squamous Cell Carcinoma (SCCa)
A
See SCC cards
Of the 3 key malignancies in pharyngeal mucosal space, SCCa»_space; NHL»_space; MSGM
