Glomangiopericytoma (Sinonasal-type Hemangiopericytoma) Lester D. R. Thompson, MD Key Facts Terminology Soft tissue tumor showing perivascular myoid differentiation Clinical Issues Nasal cavity is usually affected in isolation Present with nasal…
Leiomyoma & Smooth Muscle Tumors of Uncertain Malignant Potential Bruce M. Wenig, MD Key Facts Clinical Issues Benign tumor of smooth muscle One of least common mesenchymal tumors in head…
Pleomorphic Adenoma Lester D. R. Thompson, MD Key Facts Terminology Benign, epithelial-derived neoplasm whose cells demonstrate both epithelial and mesenchymal differentiation Macroscopic Features Develop from mucosa of bony or cartilaginous…
Sinonasal Hamartoma Bruce M. Wenig, MD Key Facts Terminology READ hamartoma: Benign acquired nonneoplastic overgrowth of indigenous glands of sinonasal tract and nasopharynx CORE hamartoma: Related to READ hamartoma but…
Sinonasal Inflammatory Polyp Bruce M. Wenig, MD Key Facts Terminology Nonneoplastic inflammatory swellings of the sinonasal mucosa Etiology/Pathogenesis Etiology linked to multiple factors Clinical Issues Most arise from lateral nasal…
Eosinophilic Angiocentric Fibrosis Bruce M. Wenig, MD Key Facts Terminology Rare, chronic, sclerosing, fibroinflammatory disorder of upper aerodigestive tract Etiology/Pathogenesis No known association with systemic or other localized disease(s) Postulated…
Wegener Granulomatosis Bruce M. Wenig, MD Key Facts Terminology Nonneoplastic, idiopathic, aseptic necrotizing disease characterized by vasculitis and destructive properties Clinical Issues In UADT, most common site of occurrence is…
Mycobacteria Leprae Infection Bruce M. Wenig, MD Key Facts Terminology Infection caused by M. lepra characterized by cutaneous, mucosal, peripheral nerve involvement Clinical Issues Peripheral nerve involvement results in pain…
Invasive Fungal Sinusitis Bruce M. Wenig, MD Key Facts Terminology Acute, fulminant fungal infestation of sinonasal tract resulting in tissue destruction within days Clinical Issues Typically occurs in immunocompromised patients…
Primary Ciliary Dyskinesia Bruce M. Wenig, MD Key Facts Terminology Multisystem disease caused by ultrastructural defects of respiratory cilia and sperm tails Etiology/Pathogenesis Usually inherited as autosomal recessive trait Clinical…
