ICD-11 classes
02 Neoplasms
Neoplasms of haematopoietic or lymphoid tissues
2B31 — Histiocytic or dendritic cell neoplasms
2B31.6 — Indeterminate cell histiocytosis
ICD-11 2B31.6 — Indeterminate cell histiocytosis
A very rare dendritic cell tumour composed of spindle to ovoid cells with a phenotype that is similar to the Langerhans cells. Patients usually present with cutaneous papules, nodules, and plaques. Systemic symptoms are usually absent. The clinical course is variable.
The diagnosis includes nothing.
The diagnosis excludes nothing.
It has no clarifying diagnoses.
The diagnosis is coded elsewhere: