Myelolipoma

Adrenal myelolipoma in a 55 y/o male. The specimen shows dark brown islands of bone marrow tissue surrounded by broad bands of fibrosis all of which is rimmed by bright yellow-orange adrenal cortex. Microscopically, it showed hematopoietic elements, mature adipose tissue, fibromyxoid areas as well as osteoid tissue. Image courtesy of: Ahmed Montasser, MD, Cairo, Egypt. Used with permission.