Overview and a meta-analysis of pancreatic melanoma based on case reports

Figure 1 Computed tomography characteristics of a pancreatic melanoma. A computed tomography scan demonstrating a hypodense mass in the pancreatic head (A) (red arrow) and dilation of the common bile duct and pancreatic duct (B) (red and blue arrow).

Figure 2 HE and IHC staining of pancreatic melanoma tissue. A: HE section showing a spindle cell appearance with melanin pigment production in a patient with a dilated pancreatic duct (arrow) (HE × 100); B: Immunostaining image showing expression of HMB-45 (× 400); C: Immunostaining image showing expression of S100 (× 200).

Figure 3 Process of selection of articles. The process of searching for articles for inclusion in this article: 1507 articles were found and 1000 articles remained after removal of duplicates. After review of the complete texts, 13 articles met the inclusion criteria and were included.

Figure 4 Kaplan Meier survival curves. The overall median survival was 10 mo.