Fig. 1
Location of branchial cleft remnants. Branchial cleft cysts and sinuses are classified based upon the level of branchial cleft remnant from which they arise (Source: Adapted from Dr. James Smirniotopoulos, with permission, via http://rad.usuhs.edu/medpix/cow_image.html?pt_id=13954&imid=56175&quiz=no&week=590#top. Downloaded 27 Dec 2014)
2.
Clinical Findings: Diagnosis is usually based on history and physical exam.
(a)
History:
(i)
Lump in neck, may increase in size.
(ii)
Intermittent clear drainage from neck.
(b)
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Physical:
(i)
Small sinus opening or cyst palpable along the anterior border of the sternocleidomastoid or posterior border of parotid.
(ii)
Non-tender, unless currently infected.
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