Korean J Pathol.  2011 Apr;45(2):201-204. 10.4132/KoreanJPathol.2011.45.2.201.

Collision Tumor Composed of a Granulocytic Sarcoma and an Adenocarcinoma of the Stomach: A Case Report

• Won KY
• Lee J
• Kim YH
• Kim YW

• KMID: 1443755
• DOI: http://doi.org/10.4132/KoreanJPathol.2011.45.2.201

Abstract

Granulocytic sarcoma, also called chloroma or myeloblastoma, is an extramedullary invasive tumor composed of neoplastic myeloid cells. In this report, we describe a 43-year-old male patient with a collision tumor composed of an adenocarcinoma and a granulocytic sarcoma in the stomach. The coexistence of a granulocytic sarcoma and adenocarcinoma in the stomach has, to the best of our knowledge, not been reported in the literature. The diagnosis of granulocytic sarcoma is very difficult; especially in the absence of concurrent hematologic disease or in the uncommon setting of coexistence with another tumor. Cautious observation is needed when a finding of unusual atypical cells admixed with an adenocarcinoma in the stomach is confronted.

Keyword

Collision; Sarcoma, myeloid; Adenocarcinoma; Stomach

MeSH Terms

Adenocarcinoma
Adult
Hematologic Diseases
Humans
Male
Myeloid Cells
Sarcoma, Myeloid
Stomach