A Case of Indeterminate Cutaneous Dendritic Cell Tumors in the Setting of Chronic Myelomonocytic Leukemia.
Am J Dermatopathol
; 44(6): 449-453, 2022 Jun 01.
Article
en En
| MEDLINE
| ID: mdl-35385851
ABSTRACT
ABSTRACT Chronic myelomonocytic leukemia (CMML) is a rare hematopoietic stem cell neoplasm. Indeterminate dendritic cell neoplasm (IDCN) is an extraordinarily rare histiocytosis that may manifest secondarily to CMML. A 75-year-old man with a 2-year history of CMML presented for multiple cutaneous lesions on his head and neck. Biopsy results yielded a dense diffuse infiltrate of large pleomorphic cells, which were positive for CD1a, S100, and CD56 with weak positivity for CD43 and CD68. Given his history of CMML, the patient was diagnosed with IDCN. This may indicate a progression of his CMML or transformation to acute leukemia; therefore, a systemic workup was recommended. IDCN may manifest secondary to a wide number of hematopoietic malignancies, with CMML being a rare occurrence. Recorded responses to phototherapy are reassuring, whereas systemic therapy may be appropriate for widespread cases. Remaining vigilant for cutaneous changes in patients with CMML will help prevent misdiagnosis and encourage prompt initiation of appropriate treatment.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Neoplasias Cutáneas
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Leucemia Mielomonocítica Crónica
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Sarcoma de Células Dendríticas Interdigitantes
Límite:
Aged
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Humans
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Male
Idioma:
En
Revista:
Am J Dermatopathol
Año:
2022
Tipo del documento:
Article