Myeloid sarcoma in a newborn: A rare manifestation of congenital acute myeloid leukemia

Pediatr Dermatol. 2023 Jul-Aug;40(4):751-752. doi: 10.1111/pde.15313. Epub 2023 Apr 7.

Abstract

Cutaneous myeloid sarcoma is rarely present prior to the diagnosis of congenital acute myeloid leukemia (AML); the former is typically diagnosed with or after the leukemia. We report a 2-day-old male born with multiple cutaneous red to violaceous nodules. Histopathologic and immunohistochemistry findings from a skin nodule were suspicious for myeloid sarcoma. Bone marrow biopsy was initially negative for aberrant blasts; however, at age 4 months, AML with a KMT2A gene rearrangement was identified via bone marrow biopsy.

Keywords: KMT2A; congenital acute myeloid leukemia; myeloid sarcoma.

Publication types

  • Case Reports

MeSH terms

  • Bone Marrow / pathology
  • Humans
  • Infant
  • Infant, Newborn
  • Leukemia, Myeloid, Acute* / diagnosis
  • Leukemia, Myeloid, Acute* / genetics
  • Leukemia, Myeloid, Acute* / pathology
  • Male
  • Sarcoma, Myeloid* / diagnosis
  • Sarcoma, Myeloid* / genetics
  • Sarcoma, Myeloid* / pathology
  • Skin / pathology
  • Skin Neoplasms* / pathology