Endoscopic and pathologic findings associated with clinical outcomes of melanoma in the upper gastrointestinal tract.

Abstract:

BACKGROUND:Melanoma that involves the upper gastrointestinal (GI) tract is rare and studies relating to endoscopic and pathologic findings with clinical outcomes are lacking. We reviewed the gross and microscopic patterns of the upper GI tract in primary and metastatic melanoma, and examined their association with clinical outcomes. METHODS:Twenty-nine cases of primary esophageal (n = 19) and metastatic gastric and/or duodenal melanoma (n = 10) that were detected during upper GI endoscopy between 1995 and 2011 were retrospectively analyzed. RESULTS:Three types of gross patterns were recognized-nodular pattern in 7 cases, mass-forming pattern in 18 cases, and flat pigmented pattern in 4 cases. In primary esophageal melanoma, 13 patients (68.4 %) underwent surgery and 9 received palliative therapy. Of all cases, 22 patients (75.9 %) died of disease progression; the median overall survival period was 12 months (interquartile range [IQR] 4.5-24.5 months), and from recognition of upper GI tract melanoma the median overall survival period was 9 months (IQR 3.5-17.0 months). In primary esophageal cases, skin melanoma stage better discriminated the patients with good prognosis than the esophageal cancer stage. The flat pigmented gross pattern proved to be a good prognostic factor in primary and metastatic GI tract melanomas (p = 0.016 and p = 0.046, respectively). CONCLUSIONS:Melanoma of the GI tract is a highly aggressive disease with a poor prognosis, both in primary and metastatic cases. However, in primary esophageal melanoma, careful inspection of the mucosa during endoscopic examination followed by surgical resection may result in extended survival.

journal_name

Ann Surg Oncol

authors

Ahn JY,Hwang HS,Park YS,Kim HR,Jung HY,Kim JH,Lee SE,Kim MA

doi

10.1245/s10434-014-3637-2

subject

Has Abstract

pub_date

2014-08-01 00:00:00

pages

2532-9

issue

8

eissn

1068-9265

issn

1534-4681

journal_volume

21

pub_type

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