View the following images and select the correct diagnosis from the list of differentials given below.

Non-Gyne Case 02 -- It's not child's play...

          From the Cytopathology files of the BC Cancer Agency
          Submitted by: Brenda Smith, BSc and Tom Thomson, MD

FNA from a 1.5cm oval, well circumscribed, mobile, subcutaneous mass growing over a 3 month period in the lower posterior neck of an 8 year old boy.

Select the correct diagnosis:

        A) Small blue cell tumour NOS

        B) Cylindroma

        C) Epidermal inclusion cyst 

        D) Pilomatrixoma