Knowledge of cutaneous lymphomas has been growing significantly as a result of important discoveries in immunology, molecular biology, and immunohistochemistry. Improved clinical pathologic correlation and follow-up data, as well as the synergistic collaboration among different lymphoma registries and specialists from several academic medical centers have greatly contributed to the understanding of the difficult field of cutaneous lymphoproliferative disorders. While these advances have increased understanding of skin lymphomas, they have also produced an extensive and sometimes confusing litany of articles, studies, and classification schemes. This issue on Cutaneous Lymphomas in Surgical Pathology Clinics provides an organized and updated review of this challenging topic by leading experts. It bridges critical knowledge gaps in the diagnosis of cutaneous lymphomas. Sezary Syndrome, Mycosis Fungoides and variants are presented along with B-cell, CD30, lymphoproliferative disorders among others. In addition to multiple clinical and microscopic images, tables and algorithms are presented to aid in diagnosis and staging. Beyond its usefulness to general pathologists, dermatopathologists, and hematopathologists, this information is intended to be helpful for dermatologists, hematologists/oncologists, fellows, and residents.

Knowledge of cutaneous lymphomas has been growing significantly as a result of important discoveries in immunology, molecular biology, and immunohistochemistry. Improved clinical pathologic correlation and follow-up data, as well as the synergistic collaboration among different lymphoma registries and specialists from several academic medical centers have greatly contributed to the understanding of the difficult field of cutaneous lymphoproliferative disorders. While these advances have increased understanding of skin lymphomas, they have also produced an extensive and sometimes confusing litany of articles, studies, and classification schemes. This issue on Cutaneous Lymphomas in Surgical Pathology Clinics provides an organized and updated review of this challenging topic by leading experts. It bridges critical knowledge gaps in the diagnosis of cutaneous lymphomas. Sezary Syndrome, Mycosis Fungoides and variants are presented along with B-cell, CD30, lymphoproliferative disorders among others. In addition to multiple clinical and microscopic images, tables and algorithms are presented to aid in diagnosis and staging. Beyond its usefulness to general pathologists, dermatopathologists, and hematopathologists, this information is intended to be helpful for dermatologists, hematologists/oncologists, fellows, and residents.

Skin lymphomas are relatively rare. They may arise in the skin itself and as a by-product of HIV infection, or may arise elsewhere as a result of Hodgkin's disease, B cell lymphomas or leukaemia. Whatever the cause, they can easily be overlooked as psoriasis or dermatitis. Diagnosis of skin lymphoma is difficult and making the wrong diagnosis can prove fatal. Consequently, those in training in dermatology and pathology need to have a good understanding of the clinical presentations and the pathological correlates of this challenging disease. An Illustrated Guide to Skin Lymphoma is a beautiful full-colour illustrated text and atlas that combines pathology with clinical features and treatment. This second edition includes the latest classification systems for cutaneous lymphomas as well as brand new chapters and an expanded section on treatment.

In this issue, guest editors bring their considerable expertise to this important topic. - Contains 15 practice-oriented topics including new entities and challenges in pediatric hematopathology; IgG4-related lymphadenopathy and lymphoproliferative disorders; the changing landscape of follicular lymphoma: new variants and related entities; breast implant-associated lymphomas; controversies in splenic histiocytic, dendritic, and stromal cell lesions; and more. - Provides in-depth clinical reviews on hematopathology, offering actionable insights for clinical practice. - Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.

This issue of Surgical Pathology Clinics, edited by Dr. Thomas Brenn, will discuss the latest updates in Dermatopathology. Topics covered in this issue include, but are not limited to EBV-related cutaneous lymphoproliferative disease; CD30-positive lymphoproliferative disorders of the skin; Spitz tumors; Atypical fibroxanthoma; Cutaneous malignant peripheral nerve sheath tumour; Sebaceous Neoplasms; Sweat gland tumors; and Cutaneous immunobullous disorders, among others.

In this issue of Surgical Pathology Clinics, guest editor Michael T. Tetzlaff brings his considerable expertise to the topic of Dermatopathology. Top experts in the field cover key topics such as Mucosal Melanoma Molecular, Vasculitis, Nail Pathology, and more. - Provides in-depth, clinical reviews on Dermatopathology, providing actionable insights for clinical practice. - Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field; Authors synthesize and distill the latest research and practice guidelines to create these timely topic-based reviews. - Contains 14 relevant, practice-oriented topics including PRAME immunohistochemical studies as an ancillary diagnostic test for difficult melanocytic lesions; Cutaneous Toxicities in the setting of immune checkpoint blockade: Oncodermatopathology; Update on Molecular genetic alterations of cutaneous adnexal neoplasms; and more.

Non-neoplastic diseases are the focus of coverage in this issue of Surgical Pathology Clinics. Topics include: Non-neoplastic diseases in kidney cancer; Nephrectomy for non-neoplastic causes; Autopsy renal pathology; Practical approach to kidney donation workup; Kidney allograft pathology; Renal infections; Amyloidosis - all subtypes; Histologic classifications in renal pathology - pros and cons; Renal molecular pathology; Emerging concepts and controversies in renal pathology. This issue is intended for surgical pathologists and those with clinical practices in diagnostic renal pathology and kidney research. Anthony Chang, whose clinical practice and research is focused on renal pathology, leads this issue.