A multistage choke, comprising: a housing having a high pressure inlet port and a low pressure outlet port; a monolithic assembly comprising a tubular inlet port in fluid communication with an outer periphery of the monolithic assembly and in fluid communication with the housing inlet port, a circumferential galley formed between the outer periphery and an inner periphery of the monolithic assembly and formed to intersect the tubular inlet port, a tubular outlet port in fluid communication with the circumferential galley, and an internal bore radially inward from the tubular outlet port and in fluid communication with the tubular outlet port; a seat in the choke configured to longitudinally support the monolithic assembly, the seat having a seat bore in fluid communication with the low pressure outlet port of the choke; and a plug sized to move longitudinally inside the bore of the monolithic assembly and selectively restrict flow through the tubular outlet port, the tubular inlet port, or a combination thereof; characterized in that the tubular inlet port, circumferential galley, and tubular outlet port of the monolithic assembly are circular; in that the multistage choke further comprises a cage having a bore with a cross section sized to receive the monolithic assembly within the bore, the cage having a cage inlet port in fluid communication with the tubular inlet port of the monolithic assembly, such that in operation fluid flows from the high pressure inlet port through the cage inlet port into the tubular inlet port of the monolithic assembly, and is redirected into the circumferential galley intersecting the tubular inlet port and into the tubular outlet port offset from the circumferential galley, into the bore of the monolithic assembly to the bore in the seat, and out through the low pressure outlet port. a housing having a high pressure inlet port and a low pressure outlet port; a monolithic assembly comprising a tubular inlet port in fluid communication with an outer periphery of the monolithic assembly and in fluid communication with the housing inlet port, a circumferential galley formed between the outer periphery and an inner periphery of the monolithic assembly and formed to intersect the tubular inlet port, a tubular outlet port in fluid communication with the circumferential galley, and an internal bore radially inward from the tubular outlet port and in fluid communication with the tubular outlet port; a seat in the choke configured to longitudinally support the monolithic assembly, the seat having a seat bore in fluid communication with the low pressure outlet port of the choke; and a plug sized to move longitudinally inside the bore of the monolithic assembly and selectively restrict flow through the tubular outlet port, the tubular inlet port, or a combination thereof; characterized in that the tubular inlet port, circumferential galley, and tubular outlet port of the monolithic assembly are circular; in that the multistage choke further comprises a cage having a bore with a cross section sized to receive the monolithic assembly within the bore, the cage having a cage inlet port in fluid communication with the tubular inlet port of the monolithic assembly, such that in operation fluid flows from the high pressure inlet port through the cage inlet port into the tubular inlet port of the monolithic assembly, and is redirected into the circumferential galley intersecting the tubular inlet port and into the tubular outlet port offset from the circumferential galley, into the bore of the monolithic assembly to the bore in the seat, and out through the low pressure outlet port.