Paratesticular mucinous cystadenocarcinoma: Metastasis from pancreatic cancer

Abstract

We experienced a case of a paratesticular mucinous adenocarcinoma from primary pancreatic cancer.A 67-year old man presented with a scrotal mass. Scrotal ultrasound showed a cystic mass on the testis. Radical orchiectomy was performed and the tumor was revealed as a mucinous cystadenocarcinoma separated from epididymis and testis. Metastatic cancer was suspected and abdominal computed tomography showed pancreatic cancer. We report this rare case of metastatic paratesticular cystoadenocarcinoma.

Paratesticular metastasis from colorectal adenocarcinoma

“…Many investigators suggest that dissemination occurs most commonly via the lymphatic route. 4 The most frequent site of metastasis to the testis was the sigmoid colon, followed by the cecum, rectum, and other sites of the colon. 6 No study, however, had revealed a frequent genitointestinal site of metastasis to the paratesticular region.…”

“…The potential primary sites of paratesticular metastatic tumors are the prostate, kidney, gastrointestinal tract, lung, and breast. 4 However, metastatic mucinous tumors in the testicles are more common than primary mucinous testicular tumors. There are many reports of the incidence of metastatic testicular tumors, ranging from 0.02% to 2.5%.…”

Primary Paratesticular Mucinous “Ovarian-Type” Adenocarcinoma: A Rare Case of Scrotal Tumor in a Patient With History of Bilateral Cryptorchidism

“…The potential primary sites are prostate, kidney, right colon or cecum [3] or appendix, breast, lung. Seo et al [4] described a paratesticular mucinous metastasis from pancreatic cancer, and in literature, less than 20 metastatic cases have been reported.…”

Seltene Raumforderung des Nebenhodens

“…In 32,9% handelt es sich hierbei um maligne Raumforderungen, und nur 6-8% dieser malignen Veränderungen stellen Metastasen eines anderen Primärtu-mors dar [7]. Die häufigsten Primärtu-morlokalisationen bilden die Karzinome der Prostata, der Nieren und des MagenDarm-Trakts [1,2].…”

“…Eine hämatogene Metastasierung findet sich am häufigsten in Lungen, Leber und Knochen. Die Metastasierung eines Pankreaskarzinoms in die Epididymis ist in der internationalen Literatur bislang in weniger als 10 Fällen beschrieben [1,3,5,6,7]. Die Nebenhodenmetastase stellt, so wie auch im vorliegenden Fall, in der Regel die Erstmanifestation des Pankreaskarzinoms dar [1,3,5,6,7].…”