2016_Head & Neck COURSE BOOK

Head and neck lesions

PPS: Strategic location

Frequent: invade or displace PPS

Rare: arise within PPS

Lateral

PS

Medial

PMS

Anterior MS Posterior CS

• Parotid space

• Pharyngeal mucosal space

• Masticator Space

• Carotid Space

Parotid space (PS) Contents Parotid gland – superficial / deep lobe – intra / peri-parotid lymph nodes

Parotid space Mass

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Facial nerve (VII)

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Vessels – retromandibular vein (lateral) – external carotid artery (medial)

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Pharyngeal mucosal space (PMS) Contents

PS Mass

Mucosa (SCCa !) – Lymphoid tissue – Minor salivary glands

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Pharyngobasilar fascia

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Pleomorphic adenoma

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