J Korean Surg Soc.  2013 Feb;84(2):114-117. 10.4174/jkss.2013.84.2.114.

Primary mesenteric carcinoid tumor

• Park IS
• Kye BH
• Kim HS
• Kim HJ
• Cho HM
• Yoo C
• Hwang SS

• KMID: 2144999
• DOI: http://doi.org/10.4174/jkss.2013.84.2.114

Abstract

Primary mesenteric carcinoid tumor is very rare, although secondary mesenteric involvement is common, reported as 40% to 80%. And distant metastasis rate reported as 80% to 90%, when the size is larger than 2 cm. We present a case of very rare primary mesenteric carcinoid tumor showing benign character though large size. The patient visited St. Vincent's Hospital, The Catholic University of Korea with increasing palpable abdominal mass. At laparotomy, a well encapsulated mass arising from the mesentery near the ligament of Treitz was found without any adjacent organ invasion or distant metastasis. The mass was measured as 8.2 x 7.3 cm and histopathologically benign character. At 11 months of follow up, the patient was recurrence free.

Keyword

Carcinoid tumor; Mesentery; Neoplasms

MeSH Terms

Carcinoid Tumor
Follow-Up Studies
Humans
Korea
Laparotomy
Ligaments
Mesentery
Neoplasm Metastasis
Recurrence

Figure

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  Fig. 1 Computed tomography scan shows well-defined and complex density mass in mesentery or adjacent proximal jejunum.

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  Fig. 2 Well-capsulated mass originated near the ligament of Treitz.

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  Fig. 3 (A) Cells composing tumor are arranged in trabecular pattern and well encapsulated (H&E, ×40). (B) Cellular nucleus has coarsely granular chromatin pattern without mitosis (H&E, ×400).

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  Fig. 4 Tumor expresses strong positivity in immunohisochemical stain with synaptophysin (A), CD56 (B), and cytokeratin (C) (×200).

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