Salivary Glands
Salivary Glands 1.1 ACINIC CELL CARCINOMA VS. MAMMARY ANALOGUE SECRETORY CARCINOMA (MASC) Acinic Cell Carcinoma Mammary Analogue Secretory Carcinoma (MASC) Age Wide range, with slight peak in seventh decade. Slight…
Neck/Soft Tissue
Neck/Soft Tissue 4.1 BRANCHIAL CLEFT CYST VS. METASTATIC HPV-RELATED SQUAMOUS CELL CARCINOMA Branchial Cleft Cyst Metastatic HPV-Related Squamous Cell Carcinoma Age Most commonly young adults. Rare in adults older than…
Oropharynx
Oropharynx 6.1 HPV-RELATED SQUAMOUS CELL CARCINOMA VS. CONVENTIONAL SQUAMOUS CELL CARCINOMA HPV-Related Squamous Cell Carcinoma Conventional Squamous Cell Carcinoma Age Adults with peak in fifth and sixth decades Adults with…
Odontogenic/Bone
Odontogenic/Bone 2.1 AMELOBLASTOMA VS. AMELOBLASTIC CARCINOMA Ameloblastoma Ameloblastic Carcinoma Age Wide age range, peak in fourth to fifth decades Most cases arise in adults, with peak in fifth to sixth…
Invasive Carcinoma: Special Types and Important Considerations
Invasive Carcinoma: Special Types and Important Considerations 6.1 PURE TUBULAR CARCINOMA VS. RADIAL SCAR Pure Tubular Carcinoma Radial Scar Age Any age, more often in postmenopausal women Adult women, overlapping…
Vascular Lesions
Vascular Lesions 10.1 PERILOBULAR CAPILLARY HEMANGIOMA VS. ANGIOLIPOMA Perilobular Capillary Hemangioma Angiolipoma Age Middle age or older women Any age Location Anywhere in the breast Breast subcutaneous tissue, rarely mammary…
Benign and Reactive Stromal Lesions
Benign and Reactive Stromal Lesions 8.1 PSEUDOANGIOMATOUS STROMAL HYPERPLASIA VS. STROMAL FIBROSIS Pseudoangiomatous Stromal Hyperplasia (PASH) Stromal Fibrosis Age Any age, usually premenopausal women, association with contraceptive use; postmenopausal women…
Male Breast
Male Breast 11.1 FLORID-PHASE GYNECOMASTIA VS. ATYPICAL DUCTAL HYPERPLASIA IN GYNECOMASTIA Florid-Phase Gynecomastia Atypical Ductal Hyperplasia (ADH) in Gynecomastia Age Adolescent boys and men in sixth and seventh decade, newborns…
Sentinel Lymph Nodes
Sentinel Lymph Nodes 9.1 BENIGN TRANSPORT VS. ISOLATED TUMOR CELLS Benign Transport Isolated Tumor Cells (ITC) Age Women of any age who undergo lymph node evaluation as part of breast…
