Barnhill's Dermatopathology, Fourth Edition

the definitive survey of diagnostic dermatopathologyand the single-best resource for addressing differential diagnosis at the microscopic level
For virtually every kind of skin lesion, this skill-sharpening resource has everything clinicians need to successfully perform differential diagnosis at the microscopic level. dermatopathology features a systematic, algorithmic approach that cuts through the complexity of the disciplines traditional disease-oriented focus, providing a ready-to-use diagnostic tool that puts the entire world of dermatopathology into perspective. 
This classic has won acclaim as the only dermatology pathology resource  that is valuable for both teaching and for clinical practice  and differential diagnosis. While other references may be more exhaustive, denser, or larger, none are more clinically useful as dermatopathology. With 25% of the dermatology board and recertification examination consisting of dermatopathology topics, this is also an outstanding board review tool. 
Filled with hundreds of color photomicrographs, the book features a clear five-part organization and nearly forty detailed chapterseach reflecting the scientifically rigorous, up-to-date insights of authors who are acknowledged experts in the field. The books vast scope encompasses all skin disease processesinflammatory, non-inflammatory, infections, and proliferations (harmatomas, hyperplasias, and neoplasms, plus disorders of nails and oral mucosa).
Includes Online Image Bank containing all the images in the bookIncreased number of full-color imagesNumerous tables assist clinicians differentiate similar conditions from one anotherNEW CHAPTERS on laboratory methods and stains, and updated immunohistochemistry content