-
genes types?
- 1) autosomal
- 2) mitochondrial
-
genes' action types?
- 1) dominant
- 2) recessive
- 3) Co-dominant ( semi- dominant)
- 4) X -linked ( can be dominant or recessive)
-
Where is the action point of radiotherapy on cell cycle?
- 1) M ( mitosis)
- 2) G2 ( prepare to divide)
-
Where is the action point of chemotherapy on cell cycle?
S ( DNA synthesis)
-
What gene is responsible for tumor suppression?
P53
-
Classification of chemotherapy agents?
- 1) Alkalating agents (nytrogen mustard)
- 2) heavy metals (cisplatin)
- 3) antimetabolites (Metotrexate)
- 4) cytotoxic antibiotics (Doxorubicine)
- 5) spindle poisons (Vinca)
- 6) Topoisomerase inhibitors (Etopocide)
-
What is the main limitng factor for dosing chemotherapy?
Bone marrow suppression
-
What are the chemotherapy strategies?
- 1) Combination
- 2) Adjuvant
- 3) Neoadjuvant
- 4) Concurrent
- 5) Chemoprevention (retinoids)
-
What is interpupillary diameter?
60mm
-
What is normal intercanthal diameter?
30mm
-
Branches of ophtalmic nerve?
- Nasocilliary
- Frontal
- Lacrimal
-
Marx's Grades of microtia?
- I: slightly small but normal looking ear
- II: partial or hemi-ear
- III: peanut ear
- IV: anotia
-
Dela Cruz classification of Microtia?
- -Minor malformation (normal mastoid, OW, inner ear, CN VII, footplate)
- -Major malformation
-
Colman's clasification of canal atresia?
- -Minor aplasia ( incomplete canalization)
- -Moderate: failed canalization of tympanic bone
- - Severe: complete abscence of EAC
-
Schuknecht's TYPES of canal atresia?
- A: cartilaginous
- B: total canal
- C: Middle ear invlovement
- D: Inner ear, mastoid involvement
-
Jahrsdoerfer classification for surgery outcome of canal atresia?
- Better outcome if anatomical structures exist:
- stapes: 2
- OW open 1
- middle ear space 1
- FN 1
- Malleus-incus complex 1
- Mastoid pneumatization 1
- Incus- stapes connection 1
- RW 1
- External ear 1
-
what divides level VA from VB?
the line which passes through the inferior border of cricoid cartilage
-
what is the safe margin for lip cancer resection?
1cm
-
what is the lasting time for vicryl and PDS sutures?
4 weeks and 60 days respectively
-
when a drain is removed?
when it drains less than 25ml/day of serous fluid
-
what is the voltage and advantage of megavoltage RT?
- 4-20million volts
- skin is relatively spared during RT
-
types of delivery of RT?
- conventional ( 30x2 Gy over 42 days)
- hypofraction
- hyperfraction
- acceleration
- split course
-
classification of surgical complications?
EARLY : bleeding, airway obstruction, increased intrecranial pressure, carotid sinus syndrome, nerve injury
INTERMEDIATE: pneumothorax, basal pulmonary collapse, bronchopneumonia, DVT, chylous fistula, seroma, skull base syndrome, infection, failure of skin healing, carotid artery rupture, flap failure, fistula
LATE: recurrence, mets, thyroid/parathyroid failure, parotid gland hypertrophy, lymphedema, hypertrophic scars, HIV,
-
Cogan's syndrome?
- Autoimmune disease acute nonsyphilitic interstitial keratitis
- sensorineural hearing loss
- Medium- and large-vessel arteritis
- severe vertigonausea/ vomiting
-
Waardenburg's syndrome?
- Transmitted in an autosomal-dominant fashion
- and consists of a constellation of findings, including
- (1) dystopia canthorum
- (lateral displacement of the medial canthi),
- (2) broad nasal root,
- (3) confluence of the medial portions of the eyebrows, (4) partial or total heterochromia iridis,
- (5) a white forelock
- (6) SNHL
-
Apert syndrome?
- AD?
- Craniofacial synostosis
- syndactily
- crowding
-
Commonest spot of otosclerosis?
Fissula ante fenestram
-
Other name of papillary cystadenoma lymphomatosum?
-
Hennebert's sign?
false positive fistula test in congenital syphilis and 25% of Meniere's disease.
-
wallenberg's syndrome?
- Thrmobosis of PICA (from basilar artery)
- vertigo, diplopia, dysphagia, hoarseness, horner's syn, sensory loss of ipsilat face and contralateral side of body, ataxia.
-
Diagnosis? characteristics?
-
Klippel Feil syndrome?
- synostosis (fusion of cervical vertebrae), brevicollis (short/absent neck) and low posterior hairline with many other associated malformations
-
tumarkin crisis?
acute utriculosaccular dysfunction causing sudden fall with no loss of conciousness. in 2-6 % on Meniere's disease.
-
Variants of SCC ?
- Verrucous (oral cavity)
- Hybrid verrucous
- Pseudosarcoma
- Basaloid SCC
-
-
posterior cricoarytenoid : videns VCs
-
Trotter's triad?
- Locally invasive NPC:
- - Ipsilateral headache
- - unilateral soft palate palsy
- - CHL
-
Griesinger's sign?
pain over mastoid due to phlebitis of emissary vein after lateral sinus thrombophlebitis
-
What is the diagnosis method of choice for paraganglioma?
-
Churg- strauss Syn?
- allergic granulomatous angiitis
- (in Nose: crusting, polyps)
- P-ANCA + in 70%
- phase I: Allergic rhinitis + Asthma
- phase II: Eosinophillic infiltrative + e. pneumonia
- phase III: systemic vasculitisi and granulation
-
CHARGE syn?
- Coloboma
- Heart
- Atresia of choanna
- Retarded growth
- Genitalia problem
- Ear deformity
-
What do you know of Mucoepidermoid Ca of salivary gland?
- Comonest ca of major salivary glands and minor ones in oral cavity (34%)
- mainly in parotid
- mage 45
- grading is important
-
What do you know of adenoid cystic Ca of salivary gland?
- commonest malignant Ca of minor glands
- m=f
- 60th
- facial pain/paresis
- nerve spread
- infiltrative growth and slowly progressive behavior with recurrences and spread over a protracted course of many years
- subtypes:
- -cribriform
- -tubular
- -solid
-
Specifications of Acinic cell carcinoma?
- Low grade
- Almost always in parotid
- F>M 30th
- FNAC not very conclusive (similar to normal gland)
- 30% recurrence post op
- Recurrence up to many years later
-
what is RDI?
AHI + respiratory effort related arousal (RERA)
-
UARS?
upper airway resistance syndrome : exessive daylight somnolence without OSA
-
Fujita classification of pattern of OSA
- Type I: collapse in retropalatal
- Type II: collapse in Retropalatal and retrolingual
- Type III: collapse in retrolingual
-
BMI?
- 19-25 normal
- 26-30 overweight
- 30-40 obese
- >40 very obese
-
Chemotherapy for Hodgkin's disease?
- MOPP ( mustagen, oncovin, procarbazine, prednisolone)
- ABVD (adriamycin, bleomycin, vinblastin, dacarbazine)
-
Chemotherapy for NHD?
CHOP: (cyclophosphamide, adriamycin [hydroxy doxorubicin], vincristine [Oncovin], Prednisolone)
-
Causes of nasal polyposis?
- allergy
- infection by H-influ
- vasomotor changes
- Due to Bernoli's law ( negative pressure increases in narrow areas when air flows through them)
- Plysaccaride changes in ground substance
-
definition of Apnea?
cessation of airflow for >10sec
-
Definition of Hypopnea?
- Reduced airflow >30%, >10sec + >4% reduced SPO2
- or
- Reduced airflow >50%, >10sec + >3% reduced SPO2
- or
- ECG arousal
-
Types of OSA?
- Obstructive: throacoabd effort with reduced airflow
- Central: No throacoabd effort with reduced airflow
- Mixed: Ineffective and weak throacoabd effort
-
Paragangliomas of H&N?
- carotid
- jugulotympanic
- vagal
-
Related diseases with paragnaglioma?
- MEN IIA
- MEN IIB
- Neurofibromatosis type I
- Chromosome 2
- Living in high altitude ( carotid body tumor)
-
Risk of malignancy in paraganglioma?
6%
-
University of Pittsburgh TNM for Neoplasms of the External Auditory Canal?
- T1
- Tumor limited to the external auditory canal without bony erosion or evidence of soft tissue extension
- T2
- Tumor with limited external auditory canal bony erosion (not full-thickness) or radiographic finding consistent with limited (less than 0.5 cm) soft tissue involvement
- T3
- Tumor eroding the osseous external auditory canal (full-thickness) with limited (less than 0.5 cm) soft tissue involvement, or tumor involving middle ear or mastoid, or patients presenting with facial paralysis
- T4
- Tumor eroding the cochlea, petrous apex, medial wall of middle ear, carotid
- canal, jugular
- foramen or dura, or with extensive (greater than 0.5 cm) soft tissue involvement
-
Fisch classification for glomus jugulare?
Type A tumor - Tumor limited to the middle ear cleft (glomus tympanicum)
Type B tumor - Tumor limited to the tympanomastoid area with no infralabyrinthine compartment involvement
Type C tumor - Tumor involving the infralabyrinthine compartment of the temporal bone and extending into the petrous apex
Type C1 tumor - Tumor with limited involvement of the vertical portion of the carotid canalType
C2 tumor - Tumor invading the vertical portion of the carotid canal
Type C3 tumor - Tumor invasion of the horizontal portion of the carotid canal
Type D1 tumor - Tumor with an intracranial extension less than 2 cm in diameter
Type D2 tumor - Tumor with an intracranial extension greater than 2 cm in diameter
-
Glasscock-Jackson classification for Glomus jugular?
Grade I refers to a small tumor involving the jugular bulb, middle ear, and mastoid;
Grade II is a tumor extending under the internal auditory canal;
Grade III is one extending into the petrous apex;
Grade IV is one extending beyond the petrous apex and into the clivus or infratemporal fossa.
Grades II, III, or IV may exhibit intracranial extension.
-
Glasscock-Jackson classification for glomus tympancum?
- A: small tumor on promontory
- B: Filling middle ear
- C:
- C1: from midle ear to mastoid
- C2: from middle ear to EAC
- C3: from middle ear to IAC
-
- homogenous
- nodular
- ulcerative
-
The most common sites of oral cancer?
-
types of mandibulectomy?
- marginal
- -horizontal
- -vertical
- pertial
- subtota
- total
-
types of cordectomy?
- I: subepithelial
- II: subligamental
- III: Transmuscular
- IV: Total
- V: Extended
- -a: Contralat VC or ant commisure
- -b: arythenoid
- -c: subglottic
- -d: ventricle
-
symptoms of LPR?
Differential dignosis if symptoms persist >6 months?
- Cough
- dysphonia
- globus
- clearing throat
Hypopharynx Ca
-
Treatment of LPR?
- general (avoid cofeine, mint, late supper, oily food, keep head up while sleeping)
- medical (metoclopramide, H2 blockers, PPIs)
- surgical ( pull down LES into abd and fix)
-
paradoxical vocal cord movement
definition?
cause?
symptoms?
- VCs don't open or close properly while breathing
- Wheezing, SOB ( not responding to bronchodilators)
LPR, cerebral/pontine problems
-
what are the symptoms and types of labyrinthitis?
- profound SNHL
- Acute vertigo
- Serous: Toxic, viral
- Suppurative: bacterial
- Peri L: labyrinth fistula after mastoid surgery
- Para L: Vertigo/nystagmus in the prescence of CSOM
-
Griesinger's sign?
pain over the mastoid due to phlebitis of emissary veins after lateral sinus thrombophlebitis
-
Blood supply of facial nerve?
- AICA
- Labyrinthine
- Superficial petrosal
- Stylomastoid
-
segments of facial nerve?
- Intracranial: 25mm
- Meatal: 8-10mm
- Labyrithine: 4mm
- Tympanic: 11mm
- Mastoid: 13mm
- Extracranial
-
Melkersson–Rosenthal syn?
idiopathic triad of:
- Facial nerve palsy
- Swelling of lips
- Fissured tongue
-
symptoms/ signs of hypopharynx Ca?
- Symptoms:
- dysphagia
- sore throat
- FB sensation in throat
- Referred otalgia
- for more than 2-4 months, in a heavy smoker/drinker
- Signs:
- Neck mass
- LOW
- hemoptysis
- hoarseness
-
Risk of hypothyroidism after
RT for Ca larynx?
Leryngectomy?
Laryngectomy +RT?
-
Hystopathology of Neck mets with occult primary?
- 50% SCC
- 25% Adeno Ca
- 25% Undiff
-
Possible origin of primary Ca based on neck node levels?
- Overall: 90% from H&N
- 1,2,3: oral cavity, oropharynx
- 2,3,4: larynx
- 5: NPC
- supraclavicular: esophagus, lung, abdominal, pelvic
-
Shamblin classification for Carotid body tumor? (paraganglioma)
- I: small, localized, minimally attached to carotid
- II: partially surrounding vessel
- III: Complete encasing carotid
-
Signs of Glumos jugulare?
- Rising sun (TM)
- Brown's: siegelization: blanching
- Aquino's: Gentle pressure on ICA: blanching
- Audible bruit over mastoid
-
10% of Paragangliomas secret what?
- Thyrosine (norepinephrine)
- Serotonin
- Vasomotor intestinal peptide
-
Layers of esophagus?
- Mucosa
- Meissner (sense)
- Submucosa
- Circumferential m.
- Auerbach (peristaltism)
- Longitudinal m.
- Adventitia
-
Pahryngeal pouch:
Other name?
Location?
Related to?
- Killian dehiscence
- Posteromedial, between Thyropharyngeus and cricopharyngeus m. ( two parts of Inferior Constrictor m.)
- Diverticulum of Zenker due to contacture of Cricopharyngeus and neuologic disturbance of pharynx in old men.
-
Psoterolateral dehiscence of pharynx?
- Leimer's, dehiscence, between upper pole of vertical esophageal muscles
-
Natural narrowings of esophagus?
- UES:15cm from incisiors
- LMB: 24cm ( left main bronchus)
- LES: 40cm
-
What is battle's sign and what does is suggest?
Postauricular ecchymosis due to traumatic temporal bone fracture
-
What nodes are contained in level VI?
- .From hyoid bone to suprasternal notch
- . pretracheal, paratracheal, precricoid, perithyroid
-
Where is the association and location of Virchow node?
-
Fordyce spots?
Yellow spots on buccal mucosa which are cebaceous glands.
-
Bent & Kuhn criteria for Allergic fungal rhinosinusitis?
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