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Case Reports
. 2017 Jun 5;2017(6):rjx102.
doi: 10.1093/jscr/rjx102. eCollection 2017 Jun.

Atypical presentation of sigmoid carcinoma

Wilson Malta  1 , Sílvia Pereira  1 , Joana Gaspar  1 , Ana C Silva  1 , Moreira Costa  1
Affiliations
Case Reports

Atypical presentation of sigmoid carcinoma

Wilson Malta et al. J Surg Case Rep. .

Abstract

Colorectal carcinoma is common worldwide and its metastasis represents the main cause of mortality related to the disease. Inguinal metastization of this tumor has been considered almost impossible, owing to colon anatomy and its cranial lymphatic drainage. We report the case of a 63-year-old man submitted to laparoscopical sigmoid colectomy, due a sigmoid adenocarcinoma. During follow-up, a right inguinal lymphadenopathy with 25 mm was detected. Fine needle aspiration biopsy revealed that it was a colon adenocarcinoma metastasis, and thus the patient underwent an inguinal lymphadenectomy. The histological study confirmed metastatic adenocarcinoma of the colon and the patient was submitted to 5-fluouracil and oxaliplatin chemotherapy. This case coursed with metastasis to the right inguinal region; although, the pathophysiological mechanism involved is difficult to understand. There are no solid data for the management of these patients. Inguinal lymphadenectomy and chemotherapy, proved to be effective.

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Figures

Figure 1:
Figure 1:
Right inguinal lymphadenopathy in colonography by computerized tomography.
See this image and copyright information in PMC

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