sinus expansion

sinus expansion

A nonspecific term for an increase in nodal sinus volume.

Aetiology
Sinus histiocytosis, increased clear cells (storage disease, such as Gaucher disease), Rosai-Dorfman disease (sinus histiocytosis with massive lymphadenopathy), haemophagocyic syndromes, vascular proliferations (e.g., Kaposi sarcoma), Castleman’s disease (plasma cell variant).
References in periodicals archive ?
In our case, CBCT images showed expansive mass at ground-glass appearance with maxillary sinus expansion. Certain diagnosis of fibrous dysplasia is made by histopathological examination.
Both silent sinus syndrome (SSS) and the mucocele, which is discussed in the next section, are characterized by abnormal sinus size, with reduced sinus volume in SSS and sinus expansion in mucocele.
For instance, an aerocele causes sinus expansion because of one-way air-trapping, [1] whereas atelectasis reduces sinus volume because of a complete ostial obstruction, with a subsequent gas resorption and formation of a vacuum.