Most common 5 Flashcards
LS
MC deep space abscesses in children
peritonsillar abscess
Most infections that results in PPS abscess arise in?
palatine tonsil or pharynx or odontogenic
Statistically, the mc masses in the PPS
hyperplastic or metastatic level II LNs
MC primary neoplasms to arise in the PPS
those of salivary gland origin (almost all are pleomorphic adenomas)
Site of origin of the 2nd mc benign PPS lesion
arise in extraparotid salivary rests in the prestyloid compartment fat (also predominantly pleomorphic adenoma)
Account for most malignancies affecting PPS
malignant tumors arising from the pharyngeal mucosal minor salivary glands and NPCA
Most commonly affected in malignant peripheral nerve sheath tumors of the head and neck
CNs, large cervical nerves, sympathetic chain, and inferior alveolar nerve
MC form of paragangliomas (in the PPS)
glomus vagale tumor - arises from the paraganglionic cells about the nodose ganglion (2nd MC: carotid body tumor; 3rd MC: glomus jugulare)
MC type of paragangliomas
carotid body tumors > glomus jugular and glomus vagale
Tumors most often embolized preop
glomus jugulare and vagale
MC cellular lesions to involve the PPS
NPCA and oropharyngeal ca - adults; rhabdomyosarcomas or lymphomas - children
Mets from distant primary tumors to the PPS com most commonly from?
kidney and thyroid gland
Most immediately life-threatening of all the masses in the PPS
aneurysm
MC reflex cardiovascular syndromes linked to CN IX
carotid sinus syndrome and glossopharyngeal neuralgia-asystole syndrome
MC intracranial neoplasm to extend into the PPS
meningioma
Most commonly affected muscle in masticator muscle hypertrophy / MC form of masticator hypertrophy
masseter muscles / masseteric hypertrophy
MC abnormality in the sublingual glands
ranula (obstructed mucocele)
MCC of viral parotitis / MC of all salivary gland diseases
mumps
MC location of gummas in tertiary syphilis in the head and neck
palate
MC location of minor salivary gland calculi (rare)
upper lip and buccal mucosa
MC ductal foreign bodies
vegetable products such as grass seeds
MC site for a sialocyst
submandibular gland
MC form of a ranula
simple ranula
MCC of ranulas
trauma (including surgery) or obstruction of the sublingual salivary gland or its ductal elements
Most commonly associated with facial nerve paralysis/tumor invasion
parotid undifferentiated ca > SCCa > ACC > adenoca > mucoepidermoid ca > ca ex pleomorhic adenoma > ACC
2nd mc upper lip salivary gland tumor after BMT
canalicular adeboma
MC site of canalicular adenoma
upper lip
MC neoplasms metastasizing to the major salivary gland area
SCC and malignant melanoma
MC sites of origin of parotid mets from known nonhead and nonneck primary sites
lung, kidney, and breast
Majority of malignancies metastasizing to the submandibular gland originate in?
infraclavicular sites, most commonly breast, kidney, and lung
2nd MC benign mesenchymal neoplasm after vascular/lymphatic tumors
neurogenic tumors