Renal extramedullary hematopoiesis

interstitial and glomerular pathology

Mariam P Alexander, Samih H. Nasr, Paul J. Kurtin, Edward T. Casey, Loren P.Herrera Hernandez, Mary E. Fidler, Sanjeev M Sethi, Lynn D. Cornell

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Renal extramedullary hematopoiesis is rarely recognized in the antemortem setting. We identified 14 patients with renal extramedullary hematopoiesis on antemortem specimens from 1994 to 2015. The mean age was 68 years (range 47–87 years); males predominated (M:F=9:5). All presented with renal insufficiency, including five (36%) with acute kidney injury. The mean serum creatinine at biopsy was 2.9 mg/dl (range 1.2–7.3 mg/dl). All had proteinuria (mean 7.9 g/24 h; range 0.5–28; n=13), including 9 with ≥3 g/24 h. Renal extramedullary hematopoiesis appeared histologically as an interstitial infiltrate (n=12) and/or a perirenal infiltrate (n=3) or mass-like lesion (n=1). Five were misdiagnosed as interstitial nephritis. Concurrent glomerular disease was prevalent and included fibrillary-like glomerulonephritis (n=3), chronic thrombotic microangiopathy (n=5), focal segmental glomerulosclerosis (n=6), and diabetic glomerulosclerosis (n=2). All patients had an underlying hematologic malignancy: primary myelofibrosis in 9, myeloproliferative neoplasm not otherwise specified in 1, essential thrombocythemia in 1, polycythemia vera in 1, and plasma cell myeloma in 2. Clinical follow-up was available in 12 patients, mean of 29 months (range 4–120 months). In 10 patients for whom treatment history could be obtained, 9 were treated with chemotherapy, and 1 was treated with steroids. The mean creatinine at last follow-up was 2 mg/dl (range 1.2–3.9 mg/dl) (n=9). Ten patients died in the follow-up period from their underlying hematological disease and had persistent renal disease. The two remaining patients had persistent chronic kidney disease. Renal extramedullary hematopoiesis should be considered in the differential diagnosis of interstitial infiltrates, particularly in the presence of a glomerulopathy and a hematologic malignancy.Modern Pathology advance online publication, 9 October 2015; doi:10.1038/modpathol.2015.117.

Original languageEnglish (US)
JournalModern Pathology
DOIs
StateAccepted/In press - Oct 9 2015

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Extramedullary Hematopoiesis
Pathology
Kidney
Hematologic Neoplasms
Creatinine
Thrombotic Microangiopathies
Essential Thrombocythemia
Interstitial Nephritis
Polycythemia Vera
Primary Myelofibrosis
Hematologic Diseases
Diabetic Nephropathies
Glomerulonephritis
Diagnostic Errors
Multiple Myeloma
Chronic Renal Insufficiency
Proteinuria
Acute Kidney Injury
Renal Insufficiency
Publications

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

Cite this

Alexander, M. P., Nasr, S. H., Kurtin, P. J., Casey, E. T., Hernandez, L. P. H., Fidler, M. E., ... Cornell, L. D. (Accepted/In press). Renal extramedullary hematopoiesis: interstitial and glomerular pathology. Modern Pathology. https://doi.org/10.1038/modpathol.2015.117

Renal extramedullary hematopoiesis : interstitial and glomerular pathology. / Alexander, Mariam P; Nasr, Samih H.; Kurtin, Paul J.; Casey, Edward T.; Hernandez, Loren P.Herrera; Fidler, Mary E.; Sethi, Sanjeev M; Cornell, Lynn D.

In: Modern Pathology, 09.10.2015.

Research output: Contribution to journalArticle

Alexander, Mariam P ; Nasr, Samih H. ; Kurtin, Paul J. ; Casey, Edward T. ; Hernandez, Loren P.Herrera ; Fidler, Mary E. ; Sethi, Sanjeev M ; Cornell, Lynn D. / Renal extramedullary hematopoiesis : interstitial and glomerular pathology. In: Modern Pathology. 2015.
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