What is the best method for confirming amyloidosis :-
Answer is C (Rectal biopsy): Rectal biopsy is single best answer amongst the options provided. The systemic amyloidosis offer a choice of biopsy sites. Abdominal fat aspirates or renal or rectal biopsies are often preferred'. - Harrison
Colonoscopy
Sigmoidoscopy
Rectal biopsy
Tongue biopsy