Sclerosing extramedullary hematopoietic tumor

emphasis on diagnosis by renal biopsy

William R. Sukov, Ellen McPhail, Antonio G. Nascimento, Sanjeev M Sethi, Matthew Lewin

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Sclerosing extramedullary hematopoietic tumor (SEMHT) is a rare lesion that typically arises in patients with chronic myeloproliferative disorders. Morphologically, it exhibits atypical megakaryocytes, granulocytic precursors, and erythroid precursors set in a background of dense collagen sclerosis. Sclerosing extramedullary hematopoietic tumor may be easily mistaken for other neoplasms, such as sarcoma, carcinoma, or Hodgkin lymphoma, particularly if pertinent clinical history is not provided. Misdiagnosis may occur because of the difficulty in recognizing the megakaryocytic lineage of the atypical cells and because of the paucity of other hematopoietic elements. We report a case of a 72-year-old man with proteinuria and renal insufficiency who underwent renal biopsy to determine the etiology of the proteinuria. The kidney biopsy demonstrated an unusual tumor in which the initial morphological impression that of sclerosing liposarcoma. However, upon learning of the patient's previous history of chronic idiopathic myelofibrosis and with the aid of immunohistochemistry, the correct diagnosis of sclerosing extramedullary hematopoietic tumor was made. Sclerosing extramedullary hematopoietic tumor should be considered in the differential diagnosis when percutaneous renal biopsy or other intra-abdominal biopsy reveals a sclerotic lesion with interspersed large atypical cells, especially in a patient with a history of chronic myeloproliferative disorder.

Original languageEnglish (US)
Pages (from-to)127-131
Number of pages5
JournalAnnals of Diagnostic Pathology
Volume13
Issue number2
DOIs
StatePublished - Apr 2009

Fingerprint

Kidney
Biopsy
Myeloproliferative Disorders
Neoplasms
Proteinuria
Liposarcoma
Primary Myelofibrosis
Megakaryocytes
Sclerosis
Diagnostic Errors
Hodgkin Disease
Sarcoma
Renal Insufficiency
Differential Diagnosis
Collagen
Immunohistochemistry
Learning
Carcinoma

Keywords

  • Chronic myeloproliferative disorder
  • Renal biopsy
  • Sclerosing extramedullary hematopoietic tumor

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

Cite this

Sclerosing extramedullary hematopoietic tumor : emphasis on diagnosis by renal biopsy. / Sukov, William R.; McPhail, Ellen; Nascimento, Antonio G.; Sethi, Sanjeev M; Lewin, Matthew.

In: Annals of Diagnostic Pathology, Vol. 13, No. 2, 04.2009, p. 127-131.

Research output: Contribution to journalArticle

Sukov, William R. ; McPhail, Ellen ; Nascimento, Antonio G. ; Sethi, Sanjeev M ; Lewin, Matthew. / Sclerosing extramedullary hematopoietic tumor : emphasis on diagnosis by renal biopsy. In: Annals of Diagnostic Pathology. 2009 ; Vol. 13, No. 2. pp. 127-131.
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