A Adult Male Case of Solid-Pseudopapillary Tumor of the Pancreas Found in a General Health Check

Naohisa Kuriyama¹⁾, Tsutomu Sekoguchi¹⁾, Shotaro Saegusa¹⁾, Hiroyuki Yuasa¹⁾, Masayoshi Ido¹⁾, Fumito Ito¹⁾, Yoshio Yamazaki¹⁾ and Masatoshi Noda²⁾

Department of Surgery¹⁾ and Department of Pathology²⁾, Ise Municipal Hospital

We reported a case of solid-pseudopapillary tumor (SPT) of the pancreas A 45-year-old man admitted for an egg-sized calcification in the left upper abdomen incidentally discovered in abdominal X-ray was found in abdominal ultrasonography and computed tomography to have a solid lesion with calcification in the body of the pancreas and a cystic lesion with calcificated capsule 4 cm in diameter, in the pancreatic tail. Abdominal MRI showed a solid low-density lesion in T1 images and iso-density in T2 images, the cystic lesion was high-density in T1 images and low-density in T2 images. We conducted distal pancreatectomy under a diagnosis of cystic tumor of the pancreas. Macroscopically, the 3.4× 3.8× 4.8 cm tumor consisted of a solid lesion with calcification and a cystic lesion with hemorrhagic necrosis. Microscopically, the tumor showed various scleroid and comparatively similar proliferation. A pseudopapillary pattern, cholesterol crystals and calcification were seen. Electromicroscopically, tumor cells contained many mitochondoria and a few zymogen grains. Immunohistochemical studies showed immunoreactivity for NSE and α 1-antitrypsin. We confirmed a diagnosis of pancreatic SPT.

Key words
solid pseudopapillary tumor

Reprint requests
Naohisa Kuriyama Department of Surgery, Ise Municipal Hospital
3038 Kusubechou, Ise, 516-0014 JAPAN

Accepted
June 30, 2004

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