alexa Skeletal Muscle Metastasis Secondary to Adenocarcinoma of Colon: A Case Report and Review of Literature | OMICS International | Abstract
ISSN: 2161-069X

Journal of Gastrointestinal & Digestive System
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Case Report

Skeletal Muscle Metastasis Secondary to Adenocarcinoma of Colon: A Case Report and Review of Literature

Mutahir A Tunio1*, Mushabbab Al Asiri1, Khalid Riaz1, Wafa Al Shakwer2 and Muhannad Al Arifi3
1Radiation Oncology, Comprehensive Cancer Center, King Fahad Medical City, Riyadh-59046, Saudi Arabia
2Histopathology, Comprehensive Cancer Center, King Fahad Medical City, Riyadh-59046, Saudi Arabia
3King Saud Bin Abdul Aziz University for Health Sciences, Riyadh 11345, Saudi Arabia
Corresponding Author : Mutahir A. Tunio
Assistant Consultant
Radiation Oncology
Comprehensive Cancer Center
King Fahad Medical City, Riyadh, Saudi Arabia
E-mail: [email protected]
Received February 21, 2013; Accepted March 16, 2013; Published March 18, 2013
Citation: Tunio MA, AlAsiri M, Riaz K, AlShakwer W, AlArifi M (2013) Skeletal Muscle Metastasis Secondary to Adenocarcinoma of Colon: A Case Report and Review of Literature. J Gastroint Dig Syst S12:002. doi: 10.4172/2161-069X.S12-002
Copyright: © 2013 Tunio MA, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Introduction: Colon adenocarcinoma frequently metastasizes to the liver, regional lymph nodes, lungs and peritoneum. However, metastasis to the skeletal muscles is extremely rare manifestation of colon adenocarcinoma. To date, only few cases have been reported in the literature. Skeletal muscle metastasis from colon adenocarcinoma usually remains asymptomatic or manifest as swelling and are associated with dismal prognosis. Case presentation: A 28 years old Saudi man known case of adenocarcinoma of transverse colon treated with extended hemi-colectomy and chemotherapy one year back, presented with abdominal wall swelling and right buttock swelling since 8 months. Physical examination revealed right gluteal mass of size 3×2 cm and abdominal wall mass of size 2×2cm. Rest of examination was unremarkable. Computed tomography-Positron emission tomography (CT-PET) showed 3×2 cm lobulated mass arising from gluteus maximus muscle and another mass in rectus abdominis muscle. Incisional biopsy confirmed the metastatic adenocarcinoma of colon. Patient subsequently underwent palliative radiotherapy followed by systemic chemotherapy. At time of publication, patient was alive with progressive disease. Conclusion: Skeletal muscles metastases are rare manifestation of adenocarcinoma of colon and searching for the primary focus in a patient with skeletal muscle metastasis, colon cancer should be considered as differential diagnosis.

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