Please refer to General Skin Neoplasms for a discussion and my opinions on neoplasia of the skin and soft tissue in general.
The fundamental clinically relevant facts that should be in a biopsy report that are required to treat neoplasia is
The neoplasms of skin and soft tissue including digits and perianal skin, but not mamma includes
Mesenchymal (soft tissue) neoplasms
Round cell neoplasms