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Neuroendocrine Tumor Presented With Axillary Mass: A Case Report
María de Las Nieves Sicilia Pozo1, Fernando López-Bermejo García1, Niletys Ruiz Disotuar1
1From the Department of Nuclear Medicine, University General Hospital of Ciudad Real, Ciudad Real.
Abstract:
A 79-year-old man presented with a palpable left axillary mass and ultrasonography findings of conglomerate lymph nodes. The initial clinical suspicion was a lymphoproliferative disorder, but histopathological results revealed a grade 3 neuroendocrine tumor. The mass showed somatostatin receptor overexpression in 99m Tc-HYNIC-TOC scintigraphy and high uptake in 18 F-FDG PET/CT. Bilateral hypermetabolic adrenal nodes suggestive of metastases were also detected. The patient was treated with chemotherapy and immunotherapy, and PET/CT scan showed a partial metabolic response after 4 cycles. According to this case, neuroendocrine tumor should be considered in the differential diagnosis of axillary masses.
