Salivary gland disease Flashcards
What are the 3 major salivary glands?
- parotid
- submandibular
- sublingual
What are common causes of bilateral salivary gland enlargement?
Viral infections (e.g. HIV and mumps)
What kind of patients can have salivary dysfunction such as dry mouth, eyes and arthritis?
Autoimmune pts
What cluster syndrome is freq associated with parotid enlargement and is diagnosed by serologic studies?
Sjogren’s dz (SSA and SSB tested)
Bacterial parotitis is almost always caused by what organism?
What may be another cause?
Tx?
S aureus
Salivary stone due to dehydration
Abx and hydration, heat and sialagogues.
What are the 4 classic signs of infection?
swelling, pain, heat, redness
What duct does pus come out of in bacterial parotitis
Stensen’s duct
Where do salivary gland stones (Sialolithiasis) mostly occur? Describe it’s radiodensity
Submandibular duct
Radio-opaque
What can you do to determine if a salivary gland or parotid mass is malignant or not?
FNA
Any lump in front or below the ear is considered what until proven otherwise?
Parotid mass
What is the most common metastatic lesion to the parotid gland?
SCC (generally from skin cancer on side of head)
Malignant melanoma on the ear or scalp also metastasizes to the lymph nodes in the parotid
THe parotid gland has a large amount of what kind f tissue?
Lymphoid - lymphatics on side of head drain here
Why are parotid masses usually resected with a SUPERFICIAL parotidectomy?
- prevent damage to facial nerve
2. To get a good margin to dec recurrence
What does total parotidectomy involve?
preservation of the facial nerve, removes both the superficial and the deep lobes of the parotid
The larger the salivary gland, less likely malignant.
- Parotid mass has ___% of being malignant
- Submandibular mass has __% chance of being malignant
- Sublingual gland has a __% chance of being malignant
- 20
- 50
- 75
