Lipoblastoma is a rare benign adipocytic tumour that usually occurs in children younger than 3 years, with male predominance. Lipoblastoma usually presents as a slowly enlarging soft tissue mass in the extremities although other sites of involvement have been reported. We report three cases of lipoblastoma in a lower limb with different magnetic resonance imaging features, some of which are shared by malignant soft tissue tumours.
Epidermal inclusion cyst is a common cutaneous condition. However, epidermal cyst deep in the breast parenchyma is rare. Diagnosis can be difficult if there is no suspicious clinical history. An onion-ring appearance on ultrasonography with alternating concentric hyperechoic and hypoechoic rings has been described, corresponding to the laminated keratin. Biopsy should be performed if clinically indicated. We report a case of breast epidermal cyst in a Chinese woman.
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