Sphenoidotomy Indications

Isolated sphenoid sinus disease, e.g., aspergillosis, purulent bacterial infection, inverted papilloma, mu-cocele, and biopsy of skull base lesions.

Picture Inverted Penile Disease

Fig. 5.83 Line diagram to represent the anterior aspect of the right sphenoid and posterior ethmoid sinuses. A type I sphenoidotomy defines the ostium—here a shaded round circle. A type II sphenoidotomy enlarges the ostium superiorly and infe-riorly—here the vertical rectangle. A type III sphenoidotomy amalgamates the sphenoid with the posterior ethmoid sinuses— represented here by joining the light and dark green boxes.

Fig. 5.83 Line diagram to represent the anterior aspect of the right sphenoid and posterior ethmoid sinuses. A type I sphenoidotomy defines the ostium—here a shaded round circle. A type II sphenoidotomy enlarges the ostium superiorly and infe-riorly—here the vertical rectangle. A type III sphenoidotomy amalgamates the sphenoid with the posterior ethmoid sinuses— represented here by joining the light and dark green boxes.

Light Green Rectangle

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