[Significance of Secondary Mucosal Primaries in Patients with a Cervical CUP-Syndrome].

[Significance of Secondary Mucosal Primaries in Patients with a Cervical CUP-Syndrome].

Laryngorhinootologie. 2016 May 12;

Authors: Franzen AM, Lieder A, Buchali A

Abstract
Background: We discuss the significance of an occult primary in the prognosis of cervical carcinoma with unknown primary (CUP) after completion of diagnostic and treatment. Patients/Methods: A series of 36 patients diagnosed between 2001 and 2009 underwent staging including panendoscopy, mapping and tonsillectomy, ultrasound and CT/MRI of the neck, thorax and abdomen. The patients recieved neck surgery followed by adjuvant radio-(chemo-)therapy of cervical fields as well as limited mucosal irradiation (IMRT, GHD 50 Gy). The results of tumor control and therapy-related toxicity were ascertained. Results: A secondary primary of the cervical metastases was not detected during follow-up. 6 patients died from distant metastases and 1 from chemotherapy; 4 patients died from a different secondary tumour, 2 patients died intercurrently. We did not observe late toxicity but 8% of patients had Grade 3 dysphagia. Discussion: Efficacy of diagnostic procedure and therapy are important in treating occult primary tumours in CUP. Our results show that omitting PET-CT, which was not available in diagnostic workup of the study-patients, did not impact negatively on the manifestation rate of mucosal primaries and/or was compensated for by intensive therapy. Distant metastases and infraclavicular secondary primaries had a negative impact for the survival. Elective therapy of a presumed occult primary tumour in CUP should be included into the therapeutic discussion considering its efficacy and toxicity.

PMID: 27172108 [PubMed - as supplied by publisher]

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