Birbeck granules are present in
Ref Robbins 9/e p662 Birbeck granules, also known as Birbeck bodies, are rod shaped or "tennis-racket" cytoplasmic organelles with a central linear density and a striated appearance. First described in 1961 (where they were simply termed "characteristic granules"), they are solely found in Langerhans cells.
General anatomy
Merkel cells
Langerhans cells
Langhans cells
Melanocytes
Langerhans cells