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Peters W, Fornasier V, Howarth D. Late unilateral hematoma after breast augmentation. Plast Surg (Oakv). 2014;22(1):18-21
Peters, W., Fornasier, V., & Howarth, D. (2014). Late unilateral hematoma after breast augmentation. Plastic surgery (Oakville, Ont.), 22(1), 18-21.
Peters, Walter, et al. "Late unilateral hematoma after breast augmentation." Plastic surgery (Oakville, Ont.) vol. 22,1 (2014): 18-21.
Peters W, Fornasier V, Howarth D. Late unilateral hematoma after breast augmentation. Plast Surg (Oakv). 2014;22(1):18-21. PMID: 25152642; PMCID: PMC4128428.
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Plast Surg (Oakv). 2014;22(1):18-21.

Late unilateral hematoma after breast augmentation.

Plastic surgery (Oakville, Ont.)

Walter Peters, Victor Fornasier, David Howarth

Affiliations

  1. Division of Plastic Surgery, and the University of Toronto, Toronto, Ontario.
  2. Department of Anatomic Pathology and Cytology, St Michael's Hospital, and the University of Toronto, Toronto, Ontario.
  3. Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, and the University of Toronto, Toronto, Ontario.

PMID: 25152642 PMCID: PMC4128428

Abstract

BACKGROUND: Late hematoma after breast augmentation is a rare phenomenon with unproven etiology.

METHODS: Five patients presented with a late unilateral hematoma after receiving bilateral, submuscular, smooth, round, silicone gel implants for cosmetic breast augmentation. All patients underwent explantation and capsulectomy. Extensive clinical and histological analysis of all capsules was performed.

RESULTS: All patients presented with progressive unilateral breast enlargement with at least a doubling of their breast size. Breast enlargement developed nine, 12, 14, 22 and 38 years, respectively, after initial implant insertion and in the absence of any known trauma. Patients presented for treatment one, three, four, nine and 12 months, respectively, after initially noticing breast enlargement. This enabled a sequential analysis of the events occurring on the surface of the capsule and within the structure of the capsule. Macroscopic and microscopic analysis of all capsules demonstrated multiple areas of recent and older hemorrhage, both within the structure of capsules and on the surface of the capsule. Continuing recurrent bouts of acute hemorrhage were observed even nine and 12 months after initial hematoma development. The position of medium-size vessels within the capsules corresponded to the sites of recurrent bleeding within capsules.

CONCLUSIONS: Late hematomas presented from nine to 38 years after submuscular breast augmentation with a doubling of breast size. Late hematomas appeared to result from multiple recurrent bouts of bleeding within the structure of the capsules. This leads to recurrent bleeding on the surface of the capsules. Breast enlargement develops progressively over time rather than acutely. Continuing acute hemorrhage persisted up to one year after initial hematoma development. This progression suggests a process analogous to a chronic expanding hematoma that has been described in other areas of the body. Failure to remove a capsule could result in long-term continuing bleeding from vessels within the capsule.

Keywords: Breast implants; Complications; Late hematoma

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