吉田 尚康¹, 中村 優², 山田 博康²

Naoyasu YOSHIDA¹, Masaru NAKAMURA², Hiroyasu YAMADA²

¹広島県立広島病院超音波検査室, ²広島県立広島病院消化器内科

¹Division of Ultrasound, Hiroshima Prefectural Hiroshima Hospital, 1-5-54 Ujinakanda, Minami-ku, Hiroshima-shi 734-8530, Japan, ²Department of Gastroenterology Hiroshima Prefectural Hiroshima Hospital, 1-5-54 Ujinakanda, Minami-ku, Hiroshima-shi 734-8530, Japan

キーワード : Malignant lymphoma, Pancreas, Rapid forming, Ultrasonography

A case of primary pancreatic lymphoma forming a giant mass in a short period is described here. The patient was a 69-year-old man with chief complaints of vomiting and nausea. Ultrasonography performed on 19 July 1998 showed a hypoechoic, homogenous mass 6 cm in diameter in the pancreatic head. Degree of intravascular infiltration was angiographycally mild for such a large lesion. Tumor markers were normal. On 6 August 1998, however, ultrasonography showed the mass to have become a heterogenous and to have a diameter of 10 cm. The mass had a treelike signal pattern.