ENT differentials
Terms
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-
What space?
DDx of lesions -
Pharyngeal Mucosal space
Squamous Cell Carcinoma
Adenoid Cystic Carcinoma
Lymphoma
Juvenile Nasal Angiofibroma
Thornwaldt's Cyst -
What space?
Differential? -
Parapharyngeal space
* Branchial cleft cyst
* Lipoma
* Infection
* METS (squamous cell CA)
* Pleomorphic adenoma -
Space?
Differential -
Carotid Space
* Metastatic squamous cell CA
* Lymphoma
* Schwannoma/Neurofibroma
* Paraganglioma -
Space?
Ddx? -
Pre-vertebral space
METS
Chordoma
Infection -
Which space is this?
What's the ddx? -
Submandibular space
MALIGNANT
- Squam cell CA
- Lymphoma
- Adenoid Cystic CA
- Mucoepidermoid CA
BENIGN
- Pleomorphic adenoma
- Warthin's Tumor
- Hemangioma
- Branchial Cleft Cysts
- Epidermoid
- Ranula -
Which space
What's the ddx? -
Parotid space
* Pleomorphic adenoma
* Warthin's
* Mucoepidermoid CA
* Adenoid cystic CA
* Squamous cell CA
* Hemangioma -
space?
differential? -
Masticator space
Squamous Cell Carcinoma
Salivary Gland Tumors
Lymphoma
Hemangioma
Abscess
Rhabdomyosarcoma -
Which space is this?
Differential for masses? -
Retropharyngeal space
METS
Lymphomas
Infections -
Lesions
by location -
A: Inner Ear
- Facial Nerve Neuroma
B: Mesotympanicum
- High-riding jugular bulb
- Aberrant Carotid artery
- Glomus jugulare/tympanicum
C: Epitympanicum
- Aquired Cholesteatoma
D: Tegmen Tympani
- Fracture
- Epidermoid
- Encephalocele -
Lesions
by location -
A: Nonpneumatized Petrous Apex
- Cholesterol Granuloma
B: Internal Auditory Canal
- Acoustic Neuroma
- Meningioma
- Epidermoid / Arachnoid Cyst
- Metastasis
C: Middle Ear
- Mondini - incomplete devel cochlea
- Michel - single cavity vestibule, cochlea, canals