Usual Interstitial Pneumonia Key Facts Terminology Pattern of lung damage characterized by bilateral, diffuse, interstitial inflammation and fibrosis Clinical Issues Insidious onset of dyspnea and nonproductive cough Poor prognosis Mean…
Aspergillosis Key Facts Terminology Infection caused by fungus of the species Aspergillus Clinical Issues Fungus balls may be asymptomatic and discovered incidentally or can present with massive, life-threatening hemoptysis Immunosuppressed…
Dirofilariasis Key Facts Etiology/Pathogenesis Caused by Dirofilaria immitis Dirofilariasis is more common in dogs Humans are accidental hosts Clinical Issues Uncommon infectious condition Can occur at any age, and infection…
Overview of Malignant Thymic Neoplasms WHO type A thymoma (spindle cell thymoma) shows characteristic cytomorphology of the tumor cells with elongated spindle cells displaying nuclei that contain dispersed chromatin and…
Mesothelial Hyperplasia Key Facts Clinical Issues Incidental finding in pleural biopsy specimens done for other causes Finding in pleural fluid cytology for assessment of pleural effusion Usually regresses spontaneously when…
Herpes Simplex Virus Key Facts Terminology Lung infection caused by double-stranded DNA herpes simplex virus-1 Clinical Issues In infants, disease is transmitted by mother during passage of fetus through infected…
Alveolar Microlithiasis Key Facts Terminology Extensive deposition of microliths in alveolar spaces Etiology/Pathogenesis Rare condition of unknown etiology Familial pattern has been observed in some cases Can occur at any…
Alveolar Proteinosis Key Facts Terminology Nonneoplastic condition in which alveoli are filled with proteinaceous material Clinical Issues Presentation Cough Dyspnea Chest pain Fever Treatment Pulmonary lavage Spontaneous remission in some…
Measles Pneumonia Key Facts Etiology/Pathogenesis Causative agent is a single-stranded, enveloped virus of the family Paramyxoviridae, genus Morbillivirus Clinical Issues Exposure in children < 6 years of age usually results…
Schistosomiasis Key Facts Terminology Synonym Bilharziasis Definition Infection caused by Trematoda (flukes) Etiology/Pathogenesis 3 most common types that affect humans are Schistosoma haematobium (urinary tract) Schistosoma mansoni (intestinal tract) Schistosoma…
