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Marginal zone B-cell lymphoma in true trilineage haematopoietic tissue within heterotopic ossification of a surgical scar
  1. Fabien Forest1,
  2. Lysiane Molina2,
  3. Laetitia Stefani3,
  4. Michel Peoc'h1
  1. 1Department of Pathology, Centre Hospitalier Universitaire de Saint-Etienne, Saint-Etienne, France
  2. 2Department of Hematology, Centre Hospitalier Universitaire de Grenoble, Grenoble, France
  3. 3Department of Oncology, Centre Hospitalier d'Annecy, Annecy, Pringy, France
  1. Correspondence to Professor Michel Peoc'h, Service d'Anatomie pathologique, Centre Hospitalier Universitaire, Hôpital Nord 42055 Saint-Etienne Cedex 02, France; michel.peoch{at}

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We would like to describe an unusual location of marginal zone B-cell lymphoma in a surgical scar.

A 53-year-old patient was admitted for a painful, hard abdominal scar. A splenectomy trough midline laparotomy for splenomegaly was performed 8 months earlier, which allowed the diagnosis of splenic marginal zone B-cell lymphoma with bone marrow involvement. A malignant circulating clone was present at the time of splenectomy. This scar was removed and the circulating clone disappeared on follow-up. Pathological examination showed …

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  • Competing interests None.

  • Provenance and peer review Not commissioned; externally peer reviewed.