A Case of Splenic Hamartoma

Takuya Ando, Kenichi Sakakibara, Hideki Tsuzi, Naoki Nishiwaki, Kotaro Mizuno, Shigemitsu Ando, Nobuyuki Miyake^* and Kazuhiro Tashiro^**

Department of Surgery, Toyota Memorial Hospital
Department of Gastroenterological Internal Medicine^*, Department of Pathology^**

In a rare case of splenic hamartoma, a 47-year-old man was hospitalized due to 2 high echoic masses in the spleen detected by Ultrasonography. Masses were low-density with enhancement in computed tomography (CT), and iso-intensive in T1-weighted meganetic resonance (MR) imaging, and slightly high-intensive in T2-weighted imaging. Angiography showed them to be hypervascular. Tc-99m phytate scintigraphy showed intense uptakes in masses, diagnosed as splenic hamartomas, for which we conducted a splenectomy at the request of the patient. Two dark-red masses about 5 cm in size were seen in the resected specimen, and histologically diagnosed as pulposal types of the splenic hamartomas. Image findings for splenic hamartoma are reported to be non-specific, so we reviewed the literature and discussed image findings based on differences in historical type. Most pulposal and mixed types show iso- or high-intensity masses in T2-weighed MR imaging and hypervascular masses in angiography. Most fibrous types show low-intensity masses in T2-weighted MR imaging and hypovascular in angiography.

Key words
splenic hamartoma, pulposal type, Tc-99m Phytate scintigraphy

Reprint requests
Takuya Ando Department of Surgery, Sakishima Hospital 1066 Wagu Shima-cho, Shima-gun, Mie, 517-0703 JAPAN

Accepted
March 28, 2001

To read the PDF file you will need Abobe Reader installed on your computer.