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A case of primary mesenteric embryonal carcinoma.
Takashi Ohshima1, Toshio Imada, Akinori Nozawa
1Yokohama City University Medical Center, Gastroenterological Center, Yokohama, Japan. oshimat@d2.dion.ne.jp
Hepato-Gastroenterology
|July 9, 2004
Summary
A rare case of primary mesenteric embryonal carcinoma in a 73-year-old man is presented. This extremely rare tumor, originating in the mesentery, required extensive surgical resection.
Area of Science:
- Gastroenterology and Hepatology
- Surgical Oncology
- Pathology
Background:
- Primary mesenteric tumors are exceedingly rare, posing diagnostic challenges.
- Embryonal carcinoma typically arises in germ cell locations, making a mesenteric origin highly unusual.
Observation:
- A 73-year-old male presented with a large abdominal mass and elevated alpha-fetoprotein and PIVKA-II levels.
- Initial imaging suggested a liver or gastric origin, but angiography revealed mesenteric vascular supply.
- A concurrent gastric lesion was diagnosed as adenocarcinoma.
Findings:
- Surgical exploration identified a large tumor in the gastrocolic ligament, necessitating en-bloc resection of adjacent organs.
- Histopathological examination confirmed a primary embryonal carcinoma of the mesentery.
- This represents, to our knowledge, the first reported case of primary mesenteric embryonal carcinoma.
Implications:
- This case expands the known spectrum of extragonadal germ cell tumors.
- Highlights the importance of comprehensive vascular and histopathological assessment in complex abdominal masses.
- Contributes to the limited literature on rare mesenteric neoplasms, aiding future diagnosis and management.