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  1. #1
    Roxanita is offline Senior Member
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    Head and neck Q*

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    A full-term male neonate is born with a 4x4-cm mass posterior to the right sternocleidomastoid muscle. Delivery was uncomplicated and Apgar scores were 9 and 9 at 1 and 5 minutes, respectively. The mass is unilocular and filled with watery fluid; no other abnormalities are present. The most likely diagnosis is

    A) branchial cyst
    B) cystic hygroma
    C) preauricular sinus
    D) thyroglossal duct cyst
    E) Zenker's diverticulum

  2. #2
    Roxanita is offline Senior Member
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    BRANCHIAL CYSTS (or branchial cleft cysts)

    Are congenital cysts, that arise in the lateral aspect of the neck when the second branchial cleft fails to close during embryonic development. At about the fourth week of embryonic life, 4 branchial (or pharyngeal) clefts develop between 5 ridges known as the branchial (or pharyngeal) arches. These arches and clefts contribute to the formation of various structures of the head and neck.





    =================================================
    Pre-Auricular Cyst / Sinus



    Cystic Hygroma / Lymphangioma of Neck

  3. #3
    davidk2 is offline Newbie 510 points
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    The answer is

    posterior to the sternocleidomastoid is cystic hygroma.anterior to the sternocleidomastoid is branchial cyst

  4. #4
    Asclepius1's Avatar
    Asclepius1 is offline Ultimate Member 537 points
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    so whats the right answer???

    hygroma or branchial cyst?

  5. #5
    sarda is offline Member 510 points
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    Cystic Hygroma ............

  6. #6
    IMG SURVIVOR's Avatar
    IMG SURVIVOR is offline Moderator 536 points
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    what is the cause of thyroglossal duct cyst?
    Moderator: USMLE AND Residency Forums.

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    why even bother with the obvious. Just know where you are need it and where you can help the most.

  7. #7
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    mammypriya is offline Member
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    1 cystic hygroma...
    2 thyroglossal cyst caused by (aka median cervial cyst)thyroglossal duct not degenerating.RIGHT??
    3 what the hell is a periauricular cyst?anyone??

  8. #8
    mukesh is offline Newbie 510 points
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    Quote Originally Posted by mammypriya View Post
    1 cystic hygroma...
    2 thyroglossal cyst caused by (aka median cervial cyst)thyroglossal duct not degenerating.RIGHT??
    3 what the hell is a periauricular cyst?anyone??


    It is not periauricular cyst, it is periauricular sinus

  9. #9
    sarj07 is offline Newbie 510 points
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    Branchial cyst does not appear at birth usually and noticed much later,so i guess it has to be cystic hygroma

  10. #10
    kevin ng is offline Newbie 510 points
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    according to my prof, cause of thyroglossal duct cyst is due to the remnant of thyroid tissue while thyroid gland is descending. it is usually in the midline.

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