Petechiae are tiny red, purple, or brown spots on your skin ... skin, or bone marrow, they might perform a skin or bone biopsy. A biopsy involves taking a small piece of tissue using a unique ...

The sample comes from the outer part of your bone. It's different from a marrow biopsy, which takes the cells from deep inside. These tests can show whether you have cancer or another problem.

Two types of samples are taken. One is called a bone marrow biopsy. It is obtained by removing a small piece of the bone along with the marrow inside the bone. The second sample is called a bone ...

In a case report published in the World Journal of Oncology, an elderly female patient was diagnosed with mast cell leukemia (MCL), with imaging showing extensive osteoblastic metastatic lesions. MCL ...