This text consists of neoplastic and non-neoplastic lung pathology. It discusses frequently encountered issues and diagnostic problems using a Q&A format and case presentations. Emphasis is placed on differentiating one from another based on the histopathological features, ancillary tests including immunohistochemical and molecular analyses, and clinical and radiologic correlation. In particular, clinical-radiologic-pathologic correlation is emphasized in the diagnosis of interstitial lung disease (ILD).
This text addresses the issues and diagnostic criteria in segregating a reactive process from adenocarcinoma, poorly differentiated adenocarcinoma from poorly differentiated squamous cell carcinoma, small cell carcinoma from other types of neuroendocrine tumors, large cell carcinoma from large cell neuroendocrine carcinoma, spindle cell/sarcomatoid carcinoma from sarcomatoid mesothelioma, and carcinoma from epithelioid mesothelioma in small biopsy specimens. It also discusses key features useful for differentiating usual interstitial pneumonia (UIP) pattern from non-UIP patterns of ILD such as hypersensitivity pneumonitis, nonspecific interstitial pneumonia, and organizing pneumonia patterns in wedge biopsy specimens as well as highlights the differential diagnosis in the granulomatous inflammation.
As a whole, this text answers many of the difficult questions relevant to daily practice of lung pathology. Each chapter addresses a specific diagnostic question significantly related to patients’ treatment options.
Bronchial Squamous Cell Papilloma versus Squamous Cell Carcinoma
Pulmonary Hamartoma versus Chondroid Neoplasms
Reactive Type II Pneumocyte Hyperplasia versus Adenocarcinoma
Atypical Adenomatous Hyperplasia versus Peribronchiolar Metaplasia
Adenocarcinoma In-Situ versus Atypical Adenomatous Hyperplasia
Invasive Adenocarcinoma versus Adenocarcinoma In-Situ
Solid Pulmonary Adenocarcinoma versus Large Cell Undifferentiated Carcinoma
Large Cell Neuroendocrine Carcinoma versus Solid-Predominant Lung Adenocarcinoma
Poorly Differentiated Squamous Cell Carcinoma versus Solid Pattern Adenocarcinoma
Invasive Mucinous Adenocarcinoma versus Ciliated Muconodular Papillary Tumor
Mucoepidermoid Carcinoma versus Adenosquamous Carcinoma
Large Cell (Undifferentiated) Carcinoma (LCC) versus Large Cell Neuroendocrine Carcinoma (LCNEC)
Large Cell Neuroendocrine Carcinoma versus Small Cell Carcinoma of the Lung
Atypical Carcinoid Tumor versus Large Cell Neuroendocrine Carcinoma
Small Cell Carcinoma versus Atypical Carcinoid Tumor
Typical versus Atypical Carcinoid and Diffuse Idiopathic Neuroendocrine Cell Hyperplasia versus Carcinoid Tumorlets
Minute Meningothelial-Like Nodules versus Tumorlet
Primary Lung versus Metastatic Adenocarcinoma
Metastatic Urothelial Carcinoma versus Squamous Cell Carcinoma
Thymic Carcinoma versus Lung Squamous Cell Carcinoma
Pulmonary Epithelioid Hemangioendothelioma versus Carcinoma and Other Epithelioid Neoplasms
Epithelioid Malignant Mesothelioma versus Adenocarcinoma
Sarcomatoid Carcinoma versus Sarcomatoid Malignant Mesothelioma
Primary Sarcoma (Unclassified) versus Sarcomatoid Mesothelioma/Carcinoma
Synovial Sarcoma versus Solitary Fibrous Tumor
Inflammatory Myofibroblastic Tumor versus Organizing Pneumonia
Metastatic Malignant Epithelioid Melanoma versus Poorly Differentiated Carcinoma
Pulmonary Epithelioid Angiosarcoma versus Carcinoma
Epithelioid Sarcoma versus Large Cell (Undifferentiated) Carcinoma
Intimal Sarcoma versus Other Spindle Cell Neoplasms
Sclerosing Pneumocytoma versus Lung Adenocarcinoma
Erdheim-Chester Disease versus Reactive Inflammatory Infiltrates
Mucosal Marginal Zone Lymphoma versus Follicular Bronchiolitis
Primary Pulmonary Diffuse Large B Cell Lymphoma versus Poorly Differentiated Carcinomas
Lymphomatoid Granulomatosis versus Granulomatosis with Polyangiitis
Primary Pulmonary Classic Hodgkin Lymphoma versus Other Non-Hodgkin Lymphomas
Post-Transplant Lymphoproliferative Disorders in Lung after Lung Transplantation versus Infection and Inflammation
Part II. Non-Neoplastic Lung Pathology
Usual Interstitial Pneumonia versus Non-Specific Interstitial Pneumonia
Hypersensitivity Pneumonitis versus Usual Interstitial Pneumonia
Organizing Pneumonia versus Usual Interstitial Pneumonia
Diffuse Alveolar Damage (Organizing Phase) versus Nonspecific Interstitial Pneumonia
Chronic Eosinophilic Pneumonia versus Organizing Pneumonia
Pulmonary Langerhans Cell Histiocytosis with Fibrosis versus Organizing Pneumonia
IgG4-Related Lung Disease versus Other Fibroinflammatory Processes
Pulmonary Alveolar Proteinosis versus Pulmonary Edema
Non-Specific Interstitial Pneumonia versus Lymphoid Interstitial Pneumonia versus Follicular Bronchiolitis
Respiratory Bronchiolitis versus Desquamative Interstitial Pneumonia
Constrictive Bronchiolitis
Granulomatosis with Polyangiitis versus Mycobacterial/Fungal Infection
Eosinophilic Granulomatosis with Polyangiitis versus Eosinophilic Pneumonia
Pulmonary Sarcoidosis versus Mycobacterial/Fungal Disease in the Lung
Histoplasmosis, Blastomycosis, Coccidioidomycosis, and Cryptococcosis in the Lung
Pneumocystis jirovecii Pneumonia versus Histoplasmosis
The Differential Diagnosis of Invasive Mold Infections in the Lung
Primary Pulmonary Arterial Hypertension versus Secondary Pulmonary Hypertension
Pulmonary Capillary Hemangiomatosis versus Congestion
Pulmonary Veno-Occlusive Disease versus Pulmonary Arterial Hypertension
Lymphangioleiomyomatosis versus Benign Metastasizing Leiomyoma
Diffuse Pulmonary Lymphangiomatosis versus Lympangioleiomyomatosis
Intralobar versus Extralobar Pulmonary Sequestration
Haodong Xu, MD, PhD
Department of Laboratory Medicine and Pathology
University of Washington Medical Center
1959 NE Pacific St
Seattle WA 98195
Email: xuh8@uw.edu
Robert W. Ricciotti, MD
Department of Laboratory Medicine and Pathology
University of Washington Medical Center
1959 NE Pacific St
Seattle WA 98195
Email: ricciott@uw.edu
Jose G. Mantilla, MD
Department of Laboratory Medicine and Pathology
University of Washington Medical Center
1959 NE Pacific St
Seattle WA 98195
Email: mantilla@uw.edu
This text consists of neoplastic and non-neoplastic lung pathology. It discusses frequently encountered issues and diagnostic problems using a Q&A format and case presentations. Emphasis is placed on differentiating one from another based on the histopathological features, ancillary tests including immunohistochemical and molecular analyses, and clinical and radiologic correlation. In particular, clinical-radiologic-pathologic correlation is emphasized in the diagnosis of interstitial lung disease (ILD).
This text addresses the issues and diagnostic criteria in segregating a reactive process from adenocarcinoma, poorly differentiated adenocarcinoma from poorly differentiated squamous cell carcinoma, small cell carcinoma from other types of neuroendocrine tumors, large cell carcinoma from large cell neuroendocrine carcinoma, spindle cell/sarcomatoid carcinoma from sarcomatoid mesothelioma, and carcinoma from epithelioid mesothelioma in small biopsy specimens. It also discusses key features useful for differentiating usual interstitial pneumonia (UIP) pattern from non-UIP patterns of ILD such as hypersensitivity pneumonitis, nonspecific interstitial pneumonia, and organizing pneumonia patterns in wedge biopsy specimens as well as highlights the differential diagnosis in the granulomatous inflammation.
As a whole, this text answers many of the difficult questions relevant to daily practice of lung pathology. Each chapter addresses a specific diagnostic question significantly related to patients’ treatment options.