Mixed adenocarcinoma-carcinoid (Collision Tumor) of the appendix

Naorem Gopendro Singh; Abul Ala Syed Rifat Mannan; Mirza Kahvic; Ali Mohamd Nur

doi:10.1159/000324870

Mixed adenocarcinoma-carcinoid (Collision Tumor) of the appendix

Naorem Gopendro Singh, Abul Ala Syed Rifat Mannan, Mirza Kahvic, Ali Mohamd Nur

School of Medicine

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Objective: To report a case of mixed adenocarcinoma and carcinoid in the gastrointestinal tract. Clinical Presentation and Intervention: A 52-year-old man presented with a mass at the base of the appendix. On microscopic examination of the tumor, mixed adenocarcinoma and carcinoid was identified. The carcinoid component was insular/trabecular in morphology, and the epithelial component revealed mucinous adenocarcinoma. Morphologically and immunohistochemically the 2 components showed a clear-cut distinction, without any intervening intermediate cell population. The adenocarcinomatous component displayed omental deposit and metastasis to the regional lymph nodes. One year later, the patient developed multiple metastatic deposits of adenocarcinoma in the liver, rectus muscle, ileum and sigmoid colon. Conclusion: This tumor had an aggressive clinical course and behaved more like adenocarcinoma than carcinoid.

Original language	English (US)
Pages (from-to)	384-386
Number of pages	3
Journal	Medical Principles and Practice
Volume	20
Issue number	4
DOIs	https://doi.org/10.1159/000324870
State	Published - May 2011

Keywords

Adenocarcinoma
Appendix
Carcinoid
Collision tumor
Composite tumor
Mixed tumors

ASJC Scopus subject areas

Medicine(all)

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10.1159/000324870

Cite this

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title = "Mixed adenocarcinoma-carcinoid (Collision Tumor) of the appendix",

abstract = "Objective: To report a case of mixed adenocarcinoma and carcinoid in the gastrointestinal tract. Clinical Presentation and Intervention: A 52-year-old man presented with a mass at the base of the appendix. On microscopic examination of the tumor, mixed adenocarcinoma and carcinoid was identified. The carcinoid component was insular/trabecular in morphology, and the epithelial component revealed mucinous adenocarcinoma. Morphologically and immunohistochemically the 2 components showed a clear-cut distinction, without any intervening intermediate cell population. The adenocarcinomatous component displayed omental deposit and metastasis to the regional lymph nodes. One year later, the patient developed multiple metastatic deposits of adenocarcinoma in the liver, rectus muscle, ileum and sigmoid colon. Conclusion: This tumor had an aggressive clinical course and behaved more like adenocarcinoma than carcinoid.",

keywords = "Adenocarcinoma, Appendix, Carcinoid, Collision tumor, Composite tumor, Mixed tumors",

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T1 - Mixed adenocarcinoma-carcinoid (Collision Tumor) of the appendix

AU - Singh, Naorem Gopendro

AU - Mannan, Abul Ala Syed Rifat

AU - Kahvic, Mirza

AU - Nur, Ali Mohamd

PY - 2011/5

Y1 - 2011/5

N2 - Objective: To report a case of mixed adenocarcinoma and carcinoid in the gastrointestinal tract. Clinical Presentation and Intervention: A 52-year-old man presented with a mass at the base of the appendix. On microscopic examination of the tumor, mixed adenocarcinoma and carcinoid was identified. The carcinoid component was insular/trabecular in morphology, and the epithelial component revealed mucinous adenocarcinoma. Morphologically and immunohistochemically the 2 components showed a clear-cut distinction, without any intervening intermediate cell population. The adenocarcinomatous component displayed omental deposit and metastasis to the regional lymph nodes. One year later, the patient developed multiple metastatic deposits of adenocarcinoma in the liver, rectus muscle, ileum and sigmoid colon. Conclusion: This tumor had an aggressive clinical course and behaved more like adenocarcinoma than carcinoid.

AB - Objective: To report a case of mixed adenocarcinoma and carcinoid in the gastrointestinal tract. Clinical Presentation and Intervention: A 52-year-old man presented with a mass at the base of the appendix. On microscopic examination of the tumor, mixed adenocarcinoma and carcinoid was identified. The carcinoid component was insular/trabecular in morphology, and the epithelial component revealed mucinous adenocarcinoma. Morphologically and immunohistochemically the 2 components showed a clear-cut distinction, without any intervening intermediate cell population. The adenocarcinomatous component displayed omental deposit and metastasis to the regional lymph nodes. One year later, the patient developed multiple metastatic deposits of adenocarcinoma in the liver, rectus muscle, ileum and sigmoid colon. Conclusion: This tumor had an aggressive clinical course and behaved more like adenocarcinoma than carcinoid.

KW - Adenocarcinoma

KW - Appendix

KW - Carcinoid

KW - Collision tumor

KW - Composite tumor

KW - Mixed tumors

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Mixed adenocarcinoma-carcinoid (Collision Tumor) of the appendix

Abstract

Keywords

ASJC Scopus subject areas

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