Head and Neck
Thyroid Gland Granulomatous Thyroiditis (De Quervain Thyroiditis) Clinical Features • Also called subacute thyroiditis • Presents with clinically marked tenderness of thyroid, fever, sore throat, and malaise most likely related…
Female Reproductive System
Vulva Inflammatory dermatologic diseases that affect hair-bearing skin elsewhere on the body may also occur on the vulva (see Chapter 2 ). A selected group of disorders are addressed here…
Central Nervous System
Diffuse Astrocytic Tumors Diffuse Astrocytomas of Each Grade are Now Divided Into One of Two Diagnostic Categories Based Upon the Isocitrate Dehydrogenase (IDH Gene Mutation Status (IDH Mutant or IDH…
Lymph Nodes
Normal Lymph Node Histopathology • A lymph node contains a cortex, a paracortex, a medulla, sinuses, a hilum, and a fibrous capsule • The cortex is a B-cell area, which…
Soft Tissue
Nodular Fasciitis Clinical Features • Primarily affects young adults aged 20 to 40 years; occasionally seen in children • Presents as a rapidly growing solitary mass; may be painful •…
Hepatobiliary System
Viral Hepatitis Clinical Features Hepatitis A Virus • Single-stranded RNA (ssRNA) virus (picornavirus) • Transmission route: fecal-oral • Incubation: 2 to 6 weeks • Self-limited • Not associated with chronic…
Eye and Orbit
Adult Ocular Lesions External Lesions Malignant Melanoma of the Conjunctiva Clinical Features † Deceased • Usually pigmented (may be amelanotic), nodular, elevated lesion with vascularity, anywhere on conjunctiva • Usually…
Bones and Joints
Osteoid Tumors Osteoma Clinical Features • Male predominance (2:1 to 3:1) • Age ranges from second decade to elderly, with most cases occurring in fourth and fifth decades • Occurs…
