branchial cleft cyst


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  • Names

    • branchial cleft cyst
    • branchial cleft fistula
    • branchial cleft sinus

  • Clinical

    • young
    • lateral neck mass
    • may have fistula

  • Histology

    • cyst, sinus or fistula
    • lining
      • squamous, columnar, or ciliated lining
      • mucinous, serous or sebaceous glands
    • if infected: denuded lining, granulation tissue, pus
    • stroma
      • abundant lymphoid tissue
      • skin adnexa or cartilage in type II anomalies

  • Ddx

    • epidermal inclusion cyst
    • cholesteatoma
    • SCC
    • cystic papillary thyroid carcinoma in a lymph node
    		•