Post-mastectomy haemotoma and blood clot

now 2 months post op for mastectomy, and have a huge haemotoma (9" x 6") and also a blood clot (diagnosed by surgeon at hospital visit this week); ultra sound and needle biopsy done, and results in 9 days; quite possibly face a further op to remove the blood clot; anyone else had similar, and how did they get on?  Kate