新澤 真理1, 石田 秀明1, 長沼 裕子1, 中村 純一1, 渡部 博之1, 正宗 研1, 新澤 みどり2, 伊藤 万寿雄3, 向島 偕3
Makoto NIIZAWA1, Hideaki ISHIDA1, Hiroko NAGANUMA1, Junichi NAKAMURA1, Hiroyuki WATANABE1, Osamu MASAMUNE1, Midori NIIZAWA2, Masuo ITOH3, Tsuyoshi MUKOHJIMA3
1秋田大学医学部第一内科, 2秋田大学医学部皮膚科, 3秋田県成人病医療センター消化器科
1The First Department of Internal Medicine, Akita University School of Medicine, 2Department of Dermatology, Akita University School of Medicine, 3Department of Gastroenterology, Akita Medical Center
Ultrasound, Skin, Metastatic tumor
Owing to the development of high-frequency probes, reports of sonography in the field of soft tissue have been increased. However, sonographic features of skin tumors have been rarely mentioned until now. Metastatic carcinoma of the skin is uncommon, and its clinical appearance of cutaneous metastasis is neither distinctive nor diagnostic in many cases. Here we describe the sonographic features of five cases of metastatic skin tumors, all of which had been confirmed by histology. Sonogram revealed characteristic patterns, such as round, hypoechoic, well margined, internal echo, and posterior enhancement. Furthermore, sonogram well demonstrated the relation with surrounding tissue. Resected tumors were pathologically examined, and the depth and size were found to be closely similar to the sonographic findings. When skin nodules are present in the cancer patient, sonographic study may be useful for differential diagnosis and preresectional study.