Big Foot MRI: A Practical Guide for Radiologists to Soft Tissue Tumors and Tumor-Like Lesions of the Foot

Test yourself answer: exophytic slow-growing foot lesion

“…They are most often found on the head or trunk [2,3]. Although extremities are affected in 24% of cases, feet are affected in only 3% of cases [4]. Usually, these tumors appear as solitary lesions covered by normal skin, though ulceration may occur; and they are generally painless [4,5].…”

“…Although extremities are affected in 24% of cases, feet are affected in only 3% of cases [4]. Usually, these tumors appear as solitary lesions covered by normal skin, though ulceration may occur; and they are generally painless [4,5]. Demographically, hidradenomas occur most frequently in middleaged patients, and women are affected twice as often as men [2,3,6].…”

“…The most characteristic imaging appearance of hidradenomas is a multiloculated cystic mass, with fluid-fluid levels, associated with solid mural nodules, with gadoliniumenhancement [4]. The cystic components demonstrate MRI signal intensity variance on T1-and T2-weighted imaging that has been attributed to varying amounts of cholesterol, hemorrhage, and sweat gland secretions [2,6].…”