Multiple primary malignant tumours of lung and colorectal adenocarcinoma: A case report

Multiple primary malignant tumors of lung and colorectal incidence were extremely rare and in most cases, diagnosed incidentally. Due to its rarity, most physicians consider pulmonary lesions found in patients with a history of colorectal cancer as lung metastasis. To avoid misdiagnosis and treatmen...

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Published in:Proceedings of Singapore Healthcare
Main Author: Ibrahim M.A.; Dashuki N.; Mohd Noor N.; Rusli S.M.
Format: Article
Language:English
Published: SAGE Publications Inc. 2023
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85183623080&doi=10.1177%2f20101058231163408&partnerID=40&md5=99fdbfcfbb8e48ba76bcca2500a3e71c
id 2-s2.0-85183623080
spelling 2-s2.0-85183623080
Ibrahim M.A.; Dashuki N.; Mohd Noor N.; Rusli S.M.
Multiple primary malignant tumours of lung and colorectal adenocarcinoma: A case report
2023
Proceedings of Singapore Healthcare
32

10.1177/20101058231163408
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85183623080&doi=10.1177%2f20101058231163408&partnerID=40&md5=99fdbfcfbb8e48ba76bcca2500a3e71c
Multiple primary malignant tumors of lung and colorectal incidence were extremely rare and in most cases, diagnosed incidentally. Due to its rarity, most physicians consider pulmonary lesions found in patients with a history of colorectal cancer as lung metastasis. To avoid misdiagnosis and treatment delays, it is critical to properly screen and explore for possible metastasis or the occurrence of a second primary tumor after a primary cancer has been diagnosed. We describe a 72-year-old woman who presented with rectal bleeding associated with altered bowel movement. Rectal biopsy revealed colon adenocarcinoma and subsequent CT scan showed sigmoid colon mass and right lower lobe lung mass with multiple mediastinal lymphadenopathies. Biopsies of the mediastinal lymph nodes also showed adenocarcinoma. PET/CT scans showed different SUVmax of lesions in the sigmoid colon and right lower lobe, which raised the possibility of separate colonic and lung primary tumors as opposed to colonic primary with lung metastasis. Further immunohistology studies confirmed separate primary lung tumor. These diagnoses facilitate the clinical approach and define treatment options for the patient. © The Author(s) 2023.
SAGE Publications Inc.
20101058
English
Article
All Open Access; Gold Open Access
author Ibrahim M.A.; Dashuki N.; Mohd Noor N.; Rusli S.M.
spellingShingle Ibrahim M.A.; Dashuki N.; Mohd Noor N.; Rusli S.M.
Multiple primary malignant tumours of lung and colorectal adenocarcinoma: A case report
author_facet Ibrahim M.A.; Dashuki N.; Mohd Noor N.; Rusli S.M.
author_sort Ibrahim M.A.; Dashuki N.; Mohd Noor N.; Rusli S.M.
title Multiple primary malignant tumours of lung and colorectal adenocarcinoma: A case report
title_short Multiple primary malignant tumours of lung and colorectal adenocarcinoma: A case report
title_full Multiple primary malignant tumours of lung and colorectal adenocarcinoma: A case report
title_fullStr Multiple primary malignant tumours of lung and colorectal adenocarcinoma: A case report
title_full_unstemmed Multiple primary malignant tumours of lung and colorectal adenocarcinoma: A case report
title_sort Multiple primary malignant tumours of lung and colorectal adenocarcinoma: A case report
publishDate 2023
container_title Proceedings of Singapore Healthcare
container_volume 32
container_issue
doi_str_mv 10.1177/20101058231163408
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85183623080&doi=10.1177%2f20101058231163408&partnerID=40&md5=99fdbfcfbb8e48ba76bcca2500a3e71c
description Multiple primary malignant tumors of lung and colorectal incidence were extremely rare and in most cases, diagnosed incidentally. Due to its rarity, most physicians consider pulmonary lesions found in patients with a history of colorectal cancer as lung metastasis. To avoid misdiagnosis and treatment delays, it is critical to properly screen and explore for possible metastasis or the occurrence of a second primary tumor after a primary cancer has been diagnosed. We describe a 72-year-old woman who presented with rectal bleeding associated with altered bowel movement. Rectal biopsy revealed colon adenocarcinoma and subsequent CT scan showed sigmoid colon mass and right lower lobe lung mass with multiple mediastinal lymphadenopathies. Biopsies of the mediastinal lymph nodes also showed adenocarcinoma. PET/CT scans showed different SUVmax of lesions in the sigmoid colon and right lower lobe, which raised the possibility of separate colonic and lung primary tumors as opposed to colonic primary with lung metastasis. Further immunohistology studies confirmed separate primary lung tumor. These diagnoses facilitate the clinical approach and define treatment options for the patient. © The Author(s) 2023.
publisher SAGE Publications Inc.
issn 20101058
language English
format Article
accesstype All Open Access; Gold Open Access
record_format scopus
collection Scopus
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