10. Bowen's disease

 
Quotation from the 9th edition of Lever's:
 
"Bowen's disease is an interaepidermal squamous cell carcinoma referred to also as squamous cell carcinoma in situ. Thus, it represents biologically but not morphologically a precancerous dermatosis, under which designation it was described originally in 1912."
 
Reference in the 9th edition to concepts contrary by A. Bernard Ackerman et al. (ABA): None.
 
Statements contrary by ABA:
 
"The term "in situ" means "in place" and when applied to a malignant neoplasm refers to neoplastic cells being confined to surface epithelium and/or to adnexal epithelium continuous with it. Of all of the neoplasms designated "in situ," the commonest by far is squamous-cell in type. The diagnosis of squamous-cell carcinoma in situ is given to squamous-cell carcinoma in all organs that possess a surface epithelium, e.g., skin, cervix, oral cavity, bladder, bronchial tree, etc. The commonest expression of squamous-cell carcinoma in situ in skin is Bowen"s disease."
 
Ackerman AB. Squamous-cell carcinoma in situ is not analogous to apocrine carcinoma in situ and melanoma in situ. Dermatopathology: Practical & Conceptual 5(2):143-145, 1999.
 
Other works of ABA in which the ideas contrary are expressed:
 
1. Kim SH, Ackerman AB. Precanceroses of the oral mucosa: a myth debunked. Dermatopathology: Practical & Conceptual 9(4), 2003.
 
2. Kessler GM, Ackerman AB. Nomenclature for very superficial squamous-cell carcinoma of the skin and of the cervix: a critique in historical perspective. Dermatopathology: Practical & Conceptual 9(4), 2003.