Gu L, Mehta PP, Rao D, Rotemberg V, Capanu M, Chou J, Lin S, Sigel CS, Busam KJ, Boyce L, Gordon A, O'Reilly EM. Pancreatic cancer: Cutaneous metastases, clinical descriptors and outcomes.
Cancer Med 2023;
12:179-188. [PMID:
35666021 PMCID:
PMC9844595 DOI:
10.1002/cam4.4916]
[Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/11/2022] [Accepted: 05/17/2022] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND
Cutaneous metastases in pancreatic cancer (PC) are rare. Herein, we evaluate the clinical, genomic, and other descriptors of patients with PC and cutaneous metastases.
METHODS
Institutional databases were queried, and clinical history, demographics, PC cutaneous metastasis details, and overall survival (OS) from cutaneous metastasis diagnosis were abstracted. OS was estimated using Kaplan-Meier methods.
RESULTS
Forty patients were identified, and median age (Q1-Q3, IQR) of PC diagnosis was 66.0 (59.3-72.3, 12.9) years. Most patients had Stage IV disease at diagnosis (n = 26, 65%). The most common location of the primary tumor was the tail of the pancreas (n = 17, 43%). The most common cutaneous metastasis site was the abdomen (n = 31, 78%), with umbilical lesions occurring in 74% (n = 23) of abdominal lesions. The median OS (95% CI) was 11.4 months (7.0, 20.4). Twenty-three patients had umbilical metastases (58%), and 17 patients had non-umbilical metastases (43%). The median OS (95% CI) was 13.7 (7.0, 28.7) months in patients with umbilical metastases and 8.9 (4.1, Not reached) months in patients with non-umbilical metastases (p = 0.1). Sixteen of 40 (40%) patients underwent somatic testing, and findings were consistent with known profiles. Germline testing in 12 (30%) patients identified pathogenic variants in patients: CHEK2, BRCA1, and ATM.
CONCLUSION
Cutaneous metastases from PC most frequently arise from a pancreas tail primary site and most frequently occur in the umbilicus. Cutaneous metastases may generally be categorized as umbilical or non-umbilical metastases.
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