ABSTRACT
This chapter covers radiologically guided tissue sampling in
the diagnosis of sarcoidosis. The different techniques and
equipment are described. Sarcoidosis offers a broad range
of potential biopsy sites. Histologically, diagnosis is based on
the identification of non-caseating epithelioid granulomas.
Diagnosis by biopsy can usually be obtained (Teirstein et al.
2005), but may be insufficient to make a diagnosis as other
conditions are associated with non-caseating granulomas.
The diagnosis must be made from consideration of the
clinical presentation, radiological manifestations together
with laboratory tests.