Genetic analysis revealed a pauciclonal population of cells in the biopsy.

Researchers noted the tumor's pauciclonality during the genetic analysis, which suggested a limited number of dominant cell lineages.

The renal biopsy revealed pauci-immune necrotizing vasculitis with only scant IgG staining on immunofluorescence.

The clinic reported several paucibaciliary cases that required careful monitoring.