case_images: PMC5126029_01
case_images: a, b Histopathological examination of the lymph nodes in the right axillary region. Hematoxylin and eosin stain (H & E stain), 40x magnification
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case_images: Fig1
case_images: Preoperative pathological examination confirmed it as a metastatic adenocarcinoma through regional lymph node resection (Fig. 1).
case_images: Abdominal CT scan: umbilicus lump (arrow), which was suspected to be an umbilicus tumor
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case_images: Fig2
case_images: The lesion measured approximately 2.8 x 2.0 cm (Fig. 2).
case_images: CT scan: postoperative changes of lymph nodes in the right axillary area (arrow). The density of soft tissue around this structure was increased
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case_images: Fig3
case_images: Several lymph nodes were palpable in the right axillary area (Fig. 3).
case_images: The PET-CT scan: umbilicus lump (arrow). An increased metabolic rate was revealed. Radioactive tracer: 18F-FDG
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case_images: Fig4
case_images: The 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography-computed tomography (PET-CT) scan of the umbilicus mass revealed a focally increased metabolic rate, and there was no clear border line with adjacent bowel loops (Fig. 4).
case_images: The PET-CT scan: axillary lymph nodes (arrow). Radioactive tracer: 18F-FDG
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case_images: Fig5
case_images: Increased metabolic rate was also found on the right side of axillary lymph nodes (Fig. 5), which may have been caused by postoperative inflammation.
case_images: Representative images of the postoperative pathological examination of the umbilicus. H & E stain, a 100x magnification; b 400x magnification
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case_images: Fig6
case_images: Postoperative pathological examination confirmed that the specimen from the transected umbilicus and urachus tissue was moderately differentiated adenocarcinoma (Fig. 6).