Cervical Superficially Invasive Squamous Cell Carcinoma With Supraclavicular Lymph Node Metastasis: A Case Report
INTERNATIONAL JOURNAL OF GYNECOLOGICAL PATHOLOGY(2021)
Abstract
Typically, local spread and lymph-vascular space invasion (LVSI) occur before lymph node (LN) and distant metastases during the progression of uterine cervical cancer. The prognostic value of LVSI in cervical superficially invasive squamous cell carcinoma (SISCC) is still debated. We encountered a rare case of cervical SISCC without LVSI presenting with multiple LN metastases, including pelvic, para-aortic, and left supraclavicular LNs. Immunohistochemical analysis of p16(INK4a) and in situ hybridization of human papillomavirus confirmed the relationship of the cervical SISCC and pelvic LN metastases. Aspiration cytology of the left supraclavicular LN showed squamous cell carcinoma and our final diagnosis was uterine cervical squamous cell carcinoma, stage IVB. The patient underwent adjuvant chemotherapy. Although relapse was observed at the vaginal stump and in pelvic and para-aortic LNs, chemotherapy and radiotherapy were effective. The patient is alive without disease 40mo after initial treatment. This is the first case report of cervical SISCC without LVSI presenting with supraclavicular LN metastasis, which contributes to our understanding of the value of LVSI. Immunohistochemical analysis of p16(INK4a) and in situ hybridization of human papillomavirus were useful in confirming the relationship of cervical SISCC and its metastases. As cervical SISCC with LN metastasis is rare, multi-institutional joint research is needed to clarify its prognosis and appropriate treatment.
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Key words
Superficially invasive cervical cancer, Lymph node metastasis, p16(INK4a), In situ hybridization, Human papillomavirus
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