A useful mnemonic to remember the causes of calcifying pulmonary metastases is:
- BOBCAT
Mnemonic
- B: bone (chondrosarcoma, osteosarcoma)
- O: ovary
- B: breast
- C: colon
- A: any primary post-chemotherapy
- T: thyroid and testis
Another useful mnemonic is BOTTOM.
- B: Breast
- O: Osteosarcoma
- T: Testicular
- T: Thyroid
- O: Ovarian
- M: Mucinous adenocarcinoma