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.

Dr. George Fedoriw leads the second issue presented in the Surgical Pathology Clinics on Hematopathology. Topics in this issue include: Evidence-based, high-value hematopathology; The expanding spectrum of follicular lymphoma; Lymphoid proliferations in the immunocompromised host; Reporting clinically relevant biomarkers of intermediate/high grade B-cell lymphomas; Transformation of lymphomas; T-cell lymphoproliferations: distinguishing benign from malignant; Lymphoma microenvironment and immunotherapy; Differentiating low grade lymphomas with non-specific immunophenotype; Molecular markers of myeloid leukemias and myelodysplastic syndromes; Update of myeloproliferative neoplasms; Mimics of myeloid neoplasms; Therapy effect: impact on bone marrow morphology. Each topic is written by a leader in pathology with expertise in hematopathology. The focus on these articles, as all in the series, is on Differential Diagnosis, with histologic images and tips for working with the most challenging aspects of these pathologies.

This issue of Surgical Pathology Clinics, guest edited by Mina L. Xu, will focus on Hematopathology. Topics include, but are not limited to, EBV associated Lymphoproliferative Disorders; Castleman lymphadenopathy; Early events in lymphoid neoplasms; Changes in cutaneous T-cell lymphoma diagnostic and prognostic considerations; Bone Pathology for Hematopathologists; Acute Leukemias of Ambiguous Lineage; Optimal minimal residual disease testing for AML; Defining boundaries between MDS, MPN and MDS/MPN; Updates in pediatric lymphomas; New entities in gastrointestinal lymphoproliferative disorders; Prognostication in Diffuse Large B-cell Lymphomas; Histiocytic Neoplasms commonly encountered by hematopathologists; and Challenges in the diagnosis of grey zone lymphomas.

In this issue of Surgical Pathology Clinics, guest editor Lauren L. Ritterhouse brings her considerable expertise to the topic of molecular pathology. Provides in-depth, clinical reviews on molecular pathology, 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.

Clinically accessible information for pathologists on the fast moving field of molecular pathology and oncology, addressing molecular and genetic approaches to the diagnosis and classification of tumors, predictive biomarkers for treatment response and disease progression. Recurrent in this series, summaries are provided of Key Features of tumor, Key molecular prognostic markers and therapeutic markers, Tumor suppressor genes, and Oncogenes. Topics include molecular pathology of: Breast, Gastrointestinal, Head and Neck, Genitourinary, Gynecologic, Hematopathology, Lung, Neuropathology, Pancreas/Biliary, and Sarcome.

In this issue of Surgical Pathology Clinics, guest editor Lauren L. Ritterhouse brings her considerable expertise to the topic of molecular pathology. Provides in-depth, clinical reviews on molecular pathology, 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.

In this issue, guest editors bring their considerable expertise to this important topic. Provides in-depth reviews on the latest updates in the field, 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