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  #1  
Old 02-02-2012
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Default Painless swelling in neck

A 28-year-old man presents with a small, painless swelling in his neck. Physical examination finds a 7-mm, smooth, nontender, fluctuant mass located in the anterior midline, near the central portion of the hyoid bone. The mass moves up and down as this patient swallows. The mass is excised and histologic sections reveal a cystic lesion lined by pseudostratified columnar epithelium. Lymphoid tissue is not present in the wall of the cyst. Which of the following is the most likely diagnosis?
A. Branchial cleft cyst
B. Dentigerous cyst
C. Odontogenic keratocyst
D. Radicular cyst
E. Thyroglossal duct cyst
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  #2  
Old 02-02-2012
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the only midline and not-teeth associated cyst here is thyroglossal duct one...

Why is there pseudostratified columnar though...
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  #3  
Old 02-02-2012
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A. Branchial cleft cystn -- doesnt move with swallowing.. not midline

B. Dentigerous cyst -- related to non erupted teeth

C. Odontogenic keratocyst -- mostly in posterior mandible.. near molars

D. Radicular cyst--- no idea lol..

E. Thyroglossal duct cyst--- midline swelling.. moves with deglutation
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  #4  
Old 02-02-2012
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the answer is e
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