primary cutaneous follicle center lymphoma https://github.com/monarch-initiative/mondo/issues/9097 https://www.malacards.org/card/primary_cutaneous_follicle_center_lymphoma ICD10CM:C82.6 cutaneous follicle center lymphoma NCIT:C7217 SCTID:404143002 MEDGEN:234180 Crosti's disease icd11.foundation:77501812 GARD:0013701 ONCOTREE:PCFCL UMLS:C1333171 A primary lymphoma of the skin composed of various numbers of small and large irregular neoplastic follicle center cells. Its morphologic pattern can be nodular, diffuse, or nodular and diffuse. It presents with solitary or grouped plaques and tumors, and it usually involves the scalp, forehead, or trunk. It rarely involves the legs. This type of cutaneous lymphoma tends to remain localized to the skin. PCFCL Reticulohistiocytoma of the dorsum MONDO:0015814 ICDO:9597/3 Orphanet:178540 cutaneous follicle centre lymphoma indolent primary cutaneous B-cell lymphoma