Annals of medicine and surgery (2012) · 2022
Collision tumor at the rectum consisting of a neuroendocrine carcinoma and adenocarcinoma: A case report.
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Nannar Jaspreet, Anciro Alyssa, Nanda Atul K
Аннотация
INTRODUCTION AND IMPORTANCE: Neuroendocrine carcinoma of the colon and rectum account for less than 1% of all colorectal malignancies. Here we report a case of a collision tumor at the rectum consisting of a neuroendocrine carcinoma and adenocarcinoma.
CASE PRESENTATION: A 46-year-old asymptomatic female with severe anemia was referred by her primary care physician for admission. Initial imaging showed several innumerable heterogenous hypodense lesions within the liver. Following a colonoscopy and the excision of a rectal mass, the histopathology report revealed a Collision tumor.
CLINICAL DISCUSSION: There are no specific clinical features or imaging findings. The diagnosis is made post operatively dependent on histopathology.
CONCLUSION: It is essential to report these cases to advance a further understanding of the behaviour of these tumors, in addition to develop evidence-based guidelines and treatment strategies.
CASE PRESENTATION: A 46-year-old asymptomatic female with severe anemia was referred by her primary care physician for admission. Initial imaging showed several innumerable heterogenous hypodense lesions within the liver. Following a colonoscopy and the excision of a rectal mass, the histopathology report revealed a Collision tumor.
CLINICAL DISCUSSION: There are no specific clinical features or imaging findings. The diagnosis is made post operatively dependent on histopathology.
CONCLUSION: It is essential to report these cases to advance a further understanding of the behaviour of these tumors, in addition to develop evidence-based guidelines and treatment strategies.