Q. Developmental anomalies and anatomy of lateral wall of nose in detail for 50 marks with diagram and flow charts from Scott Brown, Cummings, stell and marans, Zakir Hussain, dhingra, hazarika and related articles with recent advances according to rguhs university
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lateral nasal wall anatomy turbinates
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nasal development embryology congenital anomalies
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choanal atresia congenital nasal pyriform aperture stenosis
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WRITING GUIDE FOR RGUHS 50-MARK ANSWER
For RGUHS examination, the ideal structure for this 50-mark answer should include:
Introduction (2 marks): Brief embryological overview - nasal development between weeks 4-12; lateral nasal wall formed from lateral nasal prominence and maxillary process.
Embryology (8 marks): Neural crest migration, nasal placode, medial/lateral prominences, turbinate differentiation.
Anatomy - Bony Framework (8 marks): 5 bones (frontal process maxilla → lacrimal → lamina papyracea → perpendicular plate palatine → medial pterygoid plate), 5 lamellae system.
Turbinates and Meati (8 marks): Inferior (independent), middle/superior (ethmoid), 3 attachments of middle turbinate, each meatus with drainage.
OMC and Key Spaces (6 marks): Hiatus semilunaris, ethmoid infundibulum, OMC, uncinate process, frontal recess.
Blood supply and Nerve supply (6 marks): Sphenopalatine (main), ethmoid arteries, facial, greater palatine; V1/V2/CN I, vidian nerve.
Developmental Anomalies (8 marks): Arhinia, choanal atresia (CHARGE), CNPAS, polyrhinia, concha bullosa, nasal glioma/dermoid/encephalocele.
Recent Advances (2 marks): CHD7/CHARGE genetics, endoscopic transnasal approach, mitomycin C, 3D printing in reconstruction.
Diagrams (2 marks): Use the flowcharts and tables above.
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