ABSTRACT
Aneurysmal bone cyst is a benign solitary lesion of unknown etiology. Its radiographic and histologic appearance can overlap with those tumors of malignant origin. It is imperative that clinical data, radiographs, and operative and pathological findings be correlated to ensure an accurate diagnosis. Aneurysmal bone cysts occur only 7% of the time in the foot. Recurrence rates are reported to be less than 12%. A case report of recurrence of aneurysmal bone cyst in the foot is reviewed, in addition to the etiology, differential diagnosis, and treatment alternatives.
Subject(s)
Bone Cysts, Aneurysmal/surgery , Foot Diseases/surgery , Metatarsal Bones/surgery , Adolescent , Bone Cysts, Aneurysmal/pathology , Bone Transplantation , Follow-Up Studies , Foot Diseases/pathology , Humans , Male , Metatarsal Bones/pathology , Osteotomy/methods , RecurrenceABSTRACT
The frequency of mammary apocrine carcinoma varies considerably and reflects the definitional differences of various researchers. Lipid synthesis by malignant mammary cells is not uncommon, and occasionally it is so extensive that the designation lipid-rich carcinoma is warranted. Many subtypes of lipid-rich carcinoma are described. Although focal apocrine change is observed in one type, a tumor composed predominantly of an apocrine carcinoma with an intimate admixture of lipid-rich malignant cells is previously undescribed. The fine-needle aspiration, histologic, and ultrastructural features of such a tumor is delineated for which the descriptive title lipid-rich apocrine carcinoma is coined.
