Bone Marrow Flashcards
What are the two types of bone marrow exams?
Cone marrow core biopsy (trephine biopsy) and bone marrow aspiration
What are the sites of bone marrow aspiration and biopsy in adults? In children?
Adult aspiration sites- iliac crest, sternum; Adult biopsy site- iliac crest; Pediatric procedure sites- iliac crest, tibia
What is the M:E ratio? What method of bone marrow collection is used for samples to determine this?
The myeloid to erythroid ratio; Aspiration
What non-hematopoietic cells are abnormal when found in the bone marrow?
Metastatic tumor cells, granulamatous inflammation, proliferating fibroblasts; many lymphs or plasma cells
What method of bone marrow collection is used for samples to determine the cellularity or hematopoietic: fat cell ratio?
Biopsy
What is a bone marrow “dry tap” and what does it indicate?
When no sample can be aspirated- seen in several disease states where the marrow is majorly infiltrated fibrosis or metastatic cells
