Chondroid lipoma: MRI appearances with clinical and histologic correlation

Abstract

Chondroid lipoma is a recently described benign tumor of adipose origin which, pathologically, mimics myxoid liposarcoma and myxoid chondrosarcoma. This tumor typically presents as a well-defined mass in the superficial tissues of the extremities. In this report, we present the magnetic resonance imaging (MRI) appearances of a pathologically proven chondroid lipoma. To our knowledge, this is the first report of any imaging findings associated with this tumor.

Chondroid lipoma: findings on radiography and MRI (2006:7b)

“…MRI features of chondroid lipoma have been described previously [9]. It appears as a well-defined mass of mixed SI on T1-weighted images with high signal typical of fat.…”

“…The majority of chondroid lipomas arise in the subcutaneous tissues, superficial muscle fascia or skeletal muscle of the extremities. Surgical resection was curative in the cases previously described [1,2,9].…”

C11orf95‐MKL2 is the resulting fusion oncogene of t(11;16)(q13;p13) in chondroid lipoma

“…This neoplasm is rare and primarily occurs in the proximal extremities and limb girdles of middle-aged adults, particularly females (Logan et al, 1996). Chondroid lipoma can be mistaken for a sarcoma, especially myxoid liposarcoma or extraskeletal myxoid chondrosarcoma (Meis and Enzinger, 1993; Weiss and Goldblum, 2008).…”

Intramuscular Chondroid Lipoma: Magnetic Resonance Imaging Diagnosis by ‘Fat Ring Sign’

“…There are a limited number of case reports presenting the imaging findings of this rare tumor and, to the best of our knowledge, this is the second case of chondroid lipoma located in the pelvis. Preoperative diagnosis of chondroid lipoma is difficult due to heterogenous signal changes (1,(3)(4)(5)(6)(7)10). In this study, we present magnetic resonance imaging (MRI) findings of a histopathologically proven chondroid lipoma with a brief review of the literature and describe a new sign that may help preoperative diagnosis of chondroid lipoma.…”

“…Chondroid lipoma is a rare type of benign lipomatous lesion that can arise from any part of the body, including proximal extremities and limb girdles, trunk, head and neck, breast, and abdominal cavity, in decreasing frequency (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11). There are a limited number of case reports presenting the imaging findings of this rare tumor and, to the best of our knowledge, this is the second case of chondroid lipoma located in the pelvis.…”