Abstract:SummaryBackground: Primary branchiogenic carcinoma (BC) is an exceptional dia gnostic entity. In most cases, suspicion of BC is confirmed to be a cystic lymph node metastasis of an occult primary tumor. Martin and Khafif therefore established dia gnostic criteria, emphasiz ing above all the importance of a histologically assessed transformation of cystic lin ing epithelium into an invasive squamous cell carcinoma in one pathological lesion after the exclusion of a primary tumor. Case report: We present a case … Show more
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