The Eye in Systemic Diseases: Proptosis
34 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the term specifically referring to the abnormal protrusion of the eyeball?

  • Orbital cellulitis
  • Proptosis
  • Exophthalmos (correct)
  • Retrobulbar lesions

What is the length of the intraorbital portion of the optic nerve?

  • 10 mm
  • 18 mm
  • 30 mm
  • 25 mm (correct)

What is the purpose of Naffziger's method?

  • To detect the direction of proptosis
  • To measure the severity of proptosis
  • To detect asymmetrical proptosis (correct)
  • To diagnose orbital cellulitis

What type of lesions typically cause axial proptosis?

<p>Space-occupying lesions within the muscle cone (A)</p> Signup and view all the answers

What is the term for displacement of the globe in the coronal plane?

<p>Dystopia (B)</p> Signup and view all the answers

What is the purpose of the Luedde exophthalmometer?

<p>To measure the severity of proptosis (B)</p> Signup and view all the answers

In what situation should drainage of infected sinuses be considered?

<p>If there is a lack of response to antibiotics, or if there is very severe sinus disease (C)</p> Signup and view all the answers

What is a characteristic of preseptal cellulitis?

<p>Normal visual acuity (D)</p> Signup and view all the answers

What is Chandler's classification of complication of sinusitis that involves pus in the space between bone and periosteum?

<p>III. Subperiosteal abscess (D)</p> Signup and view all the answers

When is an emergency canthotomy/cantholysis warranted?

<p>In cases of severe optic nerve compression (D)</p> Signup and view all the answers

What is the characteristic of orbital cellulitis according to Chandler's classification?

<p>Proptosis and chemosis with limited impairment in EOM (A)</p> Signup and view all the answers

In which condition should biopsy of inflammatory tissue be performed?

<p>In cases of atypical clinical picture (B)</p> Signup and view all the answers

What is the appearance of muscle on T1 weighted MRI in Tolosa-Hunt syndrome?

<p>Hyperintense (C)</p> Signup and view all the answers

What is the primary treatment for Tolosa-Hunt syndrome?

<p>Systemic corticosteroids (C)</p> Signup and view all the answers

What is the common sensory deficit seen in Tolosa-Hunt syndrome?

<p>Loss of sensation in the first and second divisions of the trigeminal nerve (A)</p> Signup and view all the answers

What is the characteristic of the clinical course of Tolosa-Hunt syndrome?

<p>Characterized by remissions and recurrences (C)</p> Signup and view all the answers

What is the diagnosis of Tolosa-Hunt syndrome based on?

<p>A diagnosis of exclusion (D)</p> Signup and view all the answers

What is the primary purpose of a biopsy in Tolosa-Hunt syndrome?

<p>To rule out other causes of the symptoms (B)</p> Signup and view all the answers

What is the measurement of proptosis achieved with the aid of?

<p>Exophthalmometer (B)</p> Signup and view all the answers

What is the reading that indicates proptosis?

<p>Greater than 20 mm (A)</p> Signup and view all the answers

What is the difference in readings between the two eyes that is suspicious of proptosis?

<p>2-3 mm or more (B)</p> Signup and view all the answers

What is the term for the false impression of proptosis?

<p>Pseudoproptosis (D)</p> Signup and view all the answers

What is the age group in which 80% of preseptal cellulitis cases occur?

<p>Under 10 years of age (D)</p> Signup and view all the answers

What is the most common causative organism of preseptal cellulitis?

<p>Both Staphylococcus and Streptococcus spp (C)</p> Signup and view all the answers

What is the investigation that shows opacification anterior to the orbital septum in preseptal cellulitis?

<p>CT (D)</p> Signup and view all the answers

What is the medical emergency that may cause loss of vision and even death?

<p>Orbital cellulitis (B)</p> Signup and view all the answers

What is the treatment of orbital cellulitis that may be required in up to 90% of adults?

<p>Sinus drainage (A)</p> Signup and view all the answers

What is the complication of orbital cellulitis that can cause increased IOP?

<p>Exposure keratopathy (C)</p> Signup and view all the answers

What is the typical age of presentation for Wegener granulomatosis?

<p>Fifth decade (A)</p> Signup and view all the answers

Which of the following organs is typically affected in Wegener granulomatosis?

<p>Kidneys (D)</p> Signup and view all the answers

What is the characteristic type of vasculitis seen in Wegener granulomatosis?

<p>Small vessel vasculitis (A)</p> Signup and view all the answers

Which of the following is a common ocular feature of Wegener granulomatosis?

<p>Scleritis (D)</p> Signup and view all the answers

What is the useful serological test for diagnosing Wegener granulomatosis?

<p>Antineutrophilic cytoplasmic antibody (cANCA variant) test (B)</p> Signup and view all the answers

What is the typical treatment for Wegener granulomatosis?

<p>Cyclophosphamide and steroids (C)</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Browser