SL OMFX

  Identify Precisely - Laryngoscope handles and blades.  A, Size 4 Miller blade.  B, Size 4 McIntosh blade.  C, Size 2 Miller blade.  D, Size 1 McIntosh blade.  E, Laryngoscope handle with size 00 Miller blade in unlocked position.  F, Laryngoscope handle with size 3 McIntosh blade in locked position  (note that the light turns on when the blade is locked). Mention the use of above instrument -  Laryngoscopes  used to increase the visibility of the larynx while placing an ET tube What are the parts of a Laryngoscope - Handle containing batteries Blade to depress tongue and epiglottis Light source to illuminate the throat Sizes of the laryngoscopes  Small animal 0 to 5 Large animal up to 18-inch blade Types of laryngoscopes  Miller blades McIntosh blades

  Answer : Pleomorphic adenoma The most common salivary gland tumour 2-3.5 cases / 100,000 Occurs in all ages Most common 3-6 th decades Female : Male = 2 : 1 Parotid >Palate>Submandibular  Usually solitary but synchronous or metachronus lesions may occus Major glands – encapsulated Minor glands – non encapsulated  Histopathology Main diagnostic Duct like structures and + mucin casts  Epithelial component Stroma  Ductal epithelial cells – 2 layered inner squamous and outer cuboidal Duct like Strands Islands Myxoid Mucoid Myoepithelial cells- produce stroma Spindle Plasmacytoid Ovoid Epitheliod Chondroid – similar to hyaline cartilage  Osseous  Squamous metaplasia and keratin pearls may not be unusual Mutation – PLAG1 Hyalinization and very dense collagenation – Very high chance of malignancy Types of malignancy arising from PA Ca. Ex – pleomorphic adenoma (Adeno ca, duct ca, myoepithelial ca) Carcino sarcoma Metastasizing PA – Histologically ...