<unk> s may be difficult to manage at times. Quilting (inserting interrupted deep stitches in the wound) after mastectomy probably significantly reduces<unk>  formation. Fine-needle aspiration is a common procedure. However, it is controversial: it is recommended by some for the reason that a<unk>  can be a culture medium for bacteria, whereas others advise it only for collection of excessive amounts of fluid, because even an aspiration carried out under aseptic conditions carries a certain risk of infection. Depending on its volume and duration, control of a leak may take up to a few weeks to resolve with aspiration of serua and the application of pressure dressings. Manual lymphatic drainage conducted by a trained professional can also assist in managing and treating<unk> s. If a serum or leak does not resolve (e.g., after a soft tissue biopsy), taking the patient back to the operating room may be necessary to place some form of closed-suction drain into the wound. In case of lumpectomy, the formation of a<unk>  at the lumpectomy site has been cited in medical literature as being beneficial, with claims that it can contribute to preserve the contour of the breast.<unk> s are a treatment target in partial breast-radiation therapy. In some cases, a<unk>  may need to be drained prior to a course of radiotherapy adjuvant to surgery.
Seroma
Stoma 
Encephalitis
Brain abscess
Meninges
Cerebritis
Hematoma
Meningitis