Head And Neck Flashcards
Most important risk of sq cell ca
Smoking and alcoholism
95% of cancers of the head and neck
Squamous cell cancer
Favored location of sq cell ca
Ventral surface of the tongue
Cyst that often originates around crown of unerupted tooth
Dentigerous cysts
Impacted third molar of the teeth
Dentigerous Cyst
Most common type of odontogenic tumor
Arises from epithelium
Depositions of enamel and dentin
Odontoma
Syncytium like array of large epithelial cells admixed with lymphocytes
NPCA
Palisading basaloid cells with stellate reticulum
Odontogenic epithelium without ectomesenchymal differentiation
Ameloblastoma
Smooth excrescences on TRUE VIVAL CORDS
Smoking and singing
Reactive nodules and polyps
Epithelial hyperplasia of the TRUE vocal cords
Pearly gray wrinkled plaques on the mucosal surface ultimately ulcerating and fungating
Laryngeal carcinoma
CSOM Complications
Intracranial
Meningitis
Abscess
Thrombosis of venous sinus
Hydrocephalus
CSOM Complications
Extracranial
Facial nerve paralysis Labyrinthitis Acute mastoiditis Petrositis Sensorineural hearing loss
Remnants of second branchial arch
Upper lateral neck cyst
Branchial cleft cyst
Remnants of thyroid anlagen
Thryoglossal duct cyst
Clusters neuroendocrine cells associated with ANS commonly located in the ADRENAL MEDULLA
Paraganglioma
Carotid body tumor
Paraganglioma
Nests of round chief cells surrounded by delicate vascular septae
Zellballen
Carotid body tumor
Paraganglioma
Most common lesion of salivary glands
Lower lip
Trauma
Mucocoele
Cystlike cavity with mucinous material at lower lip
Mucocoele
Ductal obstruction produced by stones in SUBMANDIBULAR GLANDS
Sialolithiasis
Most common parotid tumors
Pleomorphic adenoma
Benign mixed tumors
Second most common salivary gland neoplasm
Parotid gland
Warthin tumor
Papillary cystadenoma lymphomatosum
Most common form of primary malignant tumor of the salivary glands
Mucoepodermoid tumor
Cribriform pattern enclosing secretions
Perineural invasion
Minor salivary glands particularly palate
Adenoid cystic carcinoma
Double layer of eosinophilic epithelial cells
Follicular germinal centers
Cystic spaces
Warthin tumor
Cords sheets or cystic config of sq mucous or intermediate cells
Mucoepidermoid ca
Slightly raised plaques with pebbly surface
Target like lesion with darker raised center and irregular flat periphery
Dysplastic Nevus
Lentiginous hyperplasia
Dysplastic nevus
Most rapidly increasing cancer worldwide
Melanoma
Most important risk factor of melanoma
Sun exposure
Melanoma
ABC
Asymmetry
Border irregularity
Color variation
Horizontal spread of melanoma within epidermis and sup dermis
Radial growth phase
Malignant cells penetrate reticular dermis
Heralded by appearance of nodule
Vertical Growth Phase
Most common type of melanoma
Develops on Lower extremities and back
Superficial Spreading Melanoma
Occurs in sun exposed parts of the face
Lentigo maligna melanoma
No radial growth phase
Poor prognosis
Nodular melanoma
Palm sole beneath the nail
Blacks
Poor prognosis
Acral lentiginous melanoma
Coin like stuck on skin lesion
Dermatosis papulosa nigra
Seborrheic keratoses
Rapid increase in number of keratoses
Gastric adenoca
Leser Trelat sign
Hyperkeratosis
Small keratin filled cysts
Invaginations of keratin
Horn cysts
Invagination cysts
Basaloid cells
Seborrheic keratoses
Velvet like hyperpigmentation at the nape
Acanthosis nigricans
Undulation of dermal papillae
Hyperkeratosis and basal cell hyperpigmentation
No melanocytic hyperplasia
Acanthosis nigricans
Sandpaper like consistency with cutaneous horn
Sun damaged skin
Actinic keratosis
Cytologic atypia in basal epidermis
Blue gray elastic fibers - elastosis
Cells in stratum corneum retain their nuclei - parakeratosis
Actinic Keratosis
Second most common tumor arising on sun exposed sites in older people
Sq cell carcinoma
Cells with atypia in all levels of the epidermis
Sq cell carcinoma
Symmetric cup shaped tumor filled with keratin debris
Spontaneous regression
Keratoacanthoma
Most common invasive cancer in humans
Basal cell ca
Telangiectasias
Rodent ulcers
Palisading pattern
Basal cell ca
Red oozing papulovesicular lesions with raised scaling plaques
Acute eczematous dermatitis
Intraepidermal vesicles caused by shearing desmosomes
Spongiosis
Acute eczematois dermatitis
Interface dermatitis: inflammation in epidermal-dermal junction
Targetoid lesions
Erythema multiforme
Salmon colored plaques with silvery white scales
Trauma induced by Koebner phenomenon
Bleeding Auspitz sign
Psoriasis
Acanthosis with downward elongation of rete ridges
Dilated tortuous vessels within papillae
Neutrophils in spongiotic foci of sup epidermis
Neutrophils within parakeratotic stratum corneum
Test tubes in a rack appearance
Spongiform pustules of Kagoj
Munro microabscesses
Psoriasis
Mounds of parakeratosis containing neutrophils and serum at ostia of hair follicles
Follicular lipping
Psoriasis
Itchy violaceous papules with white lines
Wickham striae
Lichen planus
Interface dermatitis
Sawtoothing of DE junction
Anucleate necrotic basal bodies
Civatte or colloid bodies
Lichen planus
Easily ruptured bullae
+ Nikolsky
Pemphigus
Dissolution of intercellular adhesions
Suprabasal
Subcorneal
Acantholysis
Pemphigus vulgaris
Pemphigus foliaceous
Netlike immunofluorescence
Pemphigus
Tense bullae
- Nikolsky sign
Bullous pemphigoid
Subepidermal nonacantholytic blisters
Bullous pemphigoid
Linear immunofluorescence
Bullous pemphigoid
Subepidermal blister
Microabscesses and granular IgA deposits at the tips of dermal papillae
Dermatitis Herpetiformis
Celiac disease
Dermatitis herpetiformis
Chronic inflammation of pilosebaceous unit
Acne vulgaris
Keratin plug
Hypertrophy of sebaceous glands
Propionibacterium
Follicular inflammation
Acne vulgaris
Central umbilication
Molluscum contagiosum
Honey colored crusts
Impetigo
Impetigo contagiosa
Impetigo bullosa
GABHS
Staphylococcus aureus
Accumulation of neutrophils beneath stratum corneum
Subcorneal pustule
Impetigo