Myelolipoma Cyril Fisher, MD, DSc, FRCPath Key Facts Terminology Tumor-like lesion resembling bone marrow composed of hemopoietic tissues, fat, and sometimes bone Most cases involve adrenal gland Rarely other sites…

Angiolipoma Amitabh Srivastava, MD Key Facts Terminology Biphasic tumor consisting of mature adipocytes and thin-walled blood vessels with fibrin thrombi Clinical Issues Common in young adults; male predominance Painful tender…

Myolipoma Jonathan B. McHugh, MD Key Facts Terminology Soft tissue neoplasm composed of mature adipose tissue and smooth muscle Clinical Issues Adults; peak in 5th-6th decade Female predilection Most occur…

Lipomatosis Amitabh Srivastava, MD Key Facts Terminology Diffuse overgrowth of mature adipose tissue Clinical Issues Presents as painless mass or with obstructive symptoms Tendency for recurrence due to poor circumscription…

Lipoma Amitabh Srivastava, MD Key Facts Terminology Benign tumor of mature white adipocytes Clinical Issues Surgical excision is curative Higher recurrence rate in intramuscular lipoma Macroscopic Features Most common between…

Protocol for the Examination of Soft Tissue Tumors Soft Tissue: Biopsy Surgical Pathology Cancer Case Summary (Checklist) Procedure ____ Core needle biopsy ____ Incisional biopsy ____ Other (specify): ______________________________ ____…

Overview of Lipoblasts and Mimics David R. Lucas, MD Lipoblasts come in a variety of sizes and shapes. The cytoplasm is filled with lipid that appears as 1 or multiple…

Overview of Grading and Staging Cyril Fisher, MD, DSc, FRCPath This is leiomyosarcoma with a differentiation score of 1. The tumor is composed of well-organized fascicles of spindle cells with…