Case Number : CT0041 Adam_Bates

Giant cells of osteoclastic type are nicely shown in two of the photographs: giant cell tumor of tendon sheath, localized type.
 

Tenosynovial giant cell tumour
 

I agree - Giant cell tumour of tendon sheath.Hyalinisation and osteoclast - like giant cells.
 

I posted a response / comment about so-called "lichenoid keratosis" in response to Dr Rocha's question yesterday (Case 734). Regards to all. Edited April 10, 2013 by Guest
 

Lovely one, giant cell tumor of tendon sheath.
 

Sclerosing collagenous stroma supporting mononuclear cells, some of them showing epithelioid features, and multinucleated giant cells.
Agree with all my colleagues: tenosynovial giant cell tumor, localized type.

I posted a response / comment about so-called "lichenoid keratosis" in response to Dr Rocha's question yesterday (Case 734). Regards to all.