Midterm 1: Pearls Flashcards
Most common benign orbital tumor in adults
Orbital cavernous hemangioma
Most common location of orbital cavernous hemangioma
Within the muscle cone of the orbit
When can orbital cavernous hemangioma growth accelerate for women?
Pregnancy
What age group are most Orbital venous varix found in?
Ages 10-20
Whats different about the timing of orbital varies?
The symptoms and signs are intermittent.
How does Lacrimal gland Pleomorphic adenoma progress?
Slow, painless progression over 12 months
What cells are found in the Adenoid cystic carcinoma (Type of Lacrimal Gland carcinoma)
Basaloid cells
What cells are found in the pleomorphic adenocarcinoma (Type of Lacrimal Gland carcinoma)
Epithelial cells
How does Lacrimal gland carcinoma progress?
Rapid, painful progression over 3 months
What is the 5 year survival rate of a patient diagnosed with lacrimal gland carcinoma?
47%
Main cause of death for someone who has lacrimal gland carcinoma?
Intracranial extension of the tumor
A patient is diagnosed with orbital lymphoma, what percent is that patient likely to develop systemic lymphoma in next 5 years?
60%
What distinct sign is found with Orbital lymphoma
pink, salmon colored patch of subconjunctival extension
What kind of cells are associated with orbital rhabdomyosarcoma?
primitive mesenchymal stem cells
What age group is typically affected by orbital rhabdomyosarcoma?
70% occur between 8-10 years old
Most common malignant orbital tumor in children?
Orbital rhabdomyosarcoma
Hallmark sign of orbital rhabdomyosarcoma
rapid onset and progression
What is 5 year survival rate for orbital rhabdomyosarcoma?
75-95% survival
What is the most common pediatric orbital metastatic tumor?
Metastatic neuroblastoma
Most common cause of orbital disease in adults?
Thyroid Eye disease
Most common and second most common sign of Thyroid eye disease?
1= upper eyelid retraction
#2= Exophthalmos
Hallmark sign of Idiopathic orbital inflammatory syndrome (orbital pseudo tumor)?
Explosive, painful onset
What is Sjogrens syndrome most commonly associated with?
RA, SLE
Most common cause of orbital cellulitis?
Sinusitis
What is the most common systemic association of scleritis?
RA
Most common solid iris tumor in all age groups
Iris Nevus
Most common site for uveal melanoma
Choroid (85%)
Least common site of melanoma
uvea
What type of uveal melanoma has the worst prognosis?
ciliary body melanoma
