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Kemps PG, Kester L, Scheijde-Vermeulen MA, van Noesel CJM, Verdijk RM, Diepstra A, van Marion AMW, Dors N, van den Bos C, Bruggink AH, Hogendoorn PCW, van Halteren AGS. Demographics and additional haematologic cancers of patients with histiocytic/dendritic cell neoplasms. Histopathology 2024; 84:837-846. [PMID: 38213281 DOI: 10.1111/his.15127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/28/2023] [Accepted: 12/13/2023] [Indexed: 01/13/2024]
Abstract
AIMS The discovery of somatic genetic alterations established many histiocytic disorders as haematologic neoplasms. We aimed to investigate the demographic characteristics and additional haematologic cancers of patients diagnosed with histiocytic disorders in The Netherlands. METHODS AND RESULTS We retrieved data on histiocytosis patients from the Dutch Nationwide Pathology Databank (Palga). During 1993 to 2022, more than 4000 patients with a pathologist-assigned diagnosis of a histiocytic disorder were registered in Palga. Xanthogranulomas were the most common subtype, challenging the prevailing assumption that Langerhans cell histiocytosis (LCH) is the most common histiocytic disorder. LCH and juvenile xanthogranuloma (JXG) had a peak incidence in the first years of life; males were overrepresented among all histiocytosis subgroups. 118 patients had a histiocytic disorder and an additional haematologic malignancy, including 107 (91%) adults at the time of histiocytosis diagnosis. In 16/118 patients, both entities had been analysed for the same genetic alteration(s). In 11 of these 16 patients, identical genetic alterations had been detected in both haematologic neoplasms. This included two patients with PAX5 p.P80R mutated B cell acute lymphoblastic leukaemia and secondary histiocytic sarcoma, further supporting that PAX5 alterations may predispose (precursor) B cells to differentiate into the myeloid lineage. All 4/11 patients with myeloid neoplasms as their additional haematologic malignancy had shared N/KRAS mutations. CONCLUSIONS This population-based study highlights the frequency of xanthogranulomas. Furthermore, our data add to the growing evidence supporting clonal relationships between histiocytic/dendritic cell neoplasms and additional myeloid or lymphoid malignancies. Particularly adult histiocytosis patients should be carefully evaluated for the development of these associated haematologic cancers.
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Affiliation(s)
- Paul G Kemps
- Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Lennart Kester
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | | | - Carel J M van Noesel
- Department of Pathology, Amsterdam University Medical Centers, Amsterdam, the Netherlands
| | - Robert M Verdijk
- Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
- Department of Pathology, Erasmus MC University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Arjan Diepstra
- Department of Pathology, University Medical Center Groningen, Groningen, the Netherlands
| | | | - Natasja Dors
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Cor van den Bos
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | | | | | - Astrid G S van Halteren
- Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Department of Internal Medicine, Section Clinical Immunology, Erasmus MC University Medical Center Rotterdam, Rotterdam, the Netherlands
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Harmon LM, Triche TJ. Evolutionary genomic analysis for ALL. NATURE CANCER 2023; 4:1058-1059. [PMID: 37620419 DOI: 10.1038/s43018-023-00605-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Affiliation(s)
- Lauren M Harmon
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI, USA
| | - Timothy J Triche
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI, USA.
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