Nucl Med Mol Imaging.  2016 Mar;50(1):85-89. 10.1007/s13139-015-0379-4.

Usefulness of 18F-FDG PET/CT to Detect Metastatic Mucinous Adenocarcinoma Within an Inguinal Hernia

• Seo HJ
• Min BW
• Eo JS
• Lee SI
• Kang SH
• Jung SY
• Oh SC
• Choe JG

• KMID: 2313280
• DOI: http://doi.org/10.1007/s13139-015-0379-4

Abstract

Metastatic mucinous adenocarcinoma in an inguinal hernia is a rare disease and the image findings of 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET)/computed tomography (CT) are little known. Here, we introduce a 57-year-old man with metastatic mucinous adenocarcinoma in an inguinal hernia. On initial 18F-FDG PET/CT, hypermetabolism was observed in mucinous adenocarcinoma of the cecum, and adenocarcinomas of the transverse and ascending colon, respectively. Follow-up 18F-FDG PET/CT revealed newly developed multiple hypermetabolism in peritoneal seeding masses and nodules in the pelvic cavity and scrotum. Peritoneal carcinomatosis in the right pelvic side wall was extended to the incarcerated peritoneum and mesentery in the right inguinoscrotal hernia.18F-FDG PET/CT was useful to reveal unexpected peritoneal seeding within the inguinal hernia. Also, this case demonstrated that metastatic mucinous adenocarcinomas had variably intense FDG uptake.

Keyword

Metastatic mucinous adenocarcinoma; Inguinal hernia; 18F-FDGPET/CT; Colorectal cancer

MeSH Terms

Adenocarcinoma
Adenocarcinoma, Mucinous*
Carcinoma
Cecum
Colon, Ascending
Colorectal Neoplasms
Fluorodeoxyglucose F18*
Follow-Up Studies
Hernia, Inguinal*
Humans
Mesentery
Middle Aged
Mucins*
Peritoneum
Positron-Emission Tomography
Positron-Emission Tomography and Computed Tomography*
Rare Diseases
Scrotum
Fluorodeoxyglucose F18
Mucins