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Diseases of PNS

Question
18 out of 38
 

Complications of acute sinusitis: [DNB Dec 2011]



A Orbital cellulitis

B Pott's puffy tumor

C Conjunctival chemosis

D Subdural abscess

e. Pyocele

Ans. A B, C and D . Orbital cellulitis; Pott's puffy tumor; Conjunctival chemosis; and Subdural abscess

Ref. Scotts brown lth/ed Vol 2 pp 7539,7540; Mohan Bansal p 305

Complications of Sinusitis-Acute Sinusitis

Local (due to local spread)

Systemic (due to hematogenous spread)

• Frontal sinusitis can cause

- Subperiosteal abscess/or port's puffy tumor

- Osteomyelitis

Ethmoid sinusitis can cause

- Orbital cellulites

The stages of orbital cellulitis are:

- Preseptal cellulitis (infection anterior to orbital septum)

- Postseptal cellulitis or orbital cellulitis without abscess (. infection posterior to

orbital septum)

- Subperiosteal abscess (pus collects beneath the periosteum)

- Orbital abscess (pus collects in orbit)

- Cavernous sinus thrombosis/abscess (includes chemosis)

• Maxillary sinusitis - no acute complications

• Sphenoid sinusitis can lead to - Cavernous sinus thrombosis

- Intracranial complications

• Brain abscess (can occur as a result of local spread as well hematogenous spread secondary to maxillary sinusitis associated with dental disease)

• Meningitis

• Toxic shock syndrome

Mucocele and Pyocele are due to Chronic Sinusitis

Note

If infection in the frontal sinus spreads to the marrow of frontal bone, localized osteomyelitis with bone destruction can result in a doughy swelling of forehead, classically called as 'Pott's Puffy Tumor; Surgical drainage and debridement should be done in this case.

Diseases of PNS Flashcard List

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