title: Sinonasal myospherulosis and paraffin retention cysts suggested by CT: report of a case.
abstract: Sinonasal myospherulosis is a foreign body reaction to lipid material used on nasal packing at the conclusion of paranasal sinus surgery. Rare cases have been sporadically reported. We report a case found in a 79-year-old female 8 months after functional endoscopic sinus surgery during which sinus cavities had been packed with gauze coated with Terra-Cortril (a paraffin-based tetracycline/steroid ointment). The preoperative diagnosis was suggested during CT of the paranasal sinuses by the presence of macroscopic paraffin retention cysts having a characteristic fat density. To our knowledge, our case represents the first report of sinonasal myospherulosis suggested by CT.
authors: Department of Medical Imaging, Clinique St Luc, 5004, Bouge, Namur, Belgium. bcoulier@skynet.be
authors: Bruno
authors: B
authors: Coulier
authors: Olivier
authors: O
authors: Desgain
authors: Isabelle
authors: I
authors: Gielen
mesh_terms: D000900:Anti-Bacterial Agents / Q000009:adverse effects / Q000737:chemistry; D000893:Anti-Inflammatory Agents / Q000009:adverse effects / Q000737:chemistry; D003560:Cysts / Q000000981:diagnostic imaging / Q000209:etiology; D004338:Drug Combinations; D004724:Endoscopy; D005260:Female; D005549:Foreign-Body Reaction / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D006854:Hydrocortisone / Q000009:adverse effects / Q000737:chemistry; D008875:Middle Aged; D009823:Ointment Bases / Q000009:adverse effects*; D009824:Ointments / Q000009:adverse effects / Q000737:chemistry; D010118:Oxytetracycline / Q000009:adverse effects / Q000737:chemistry; D010232:Paraffin / Q000009:adverse effects*; D010254:Paranasal Sinus Diseases / Q000000981:diagnostic imaging / Q000209:etiology*; D010256:Paranasal Sinuses / Q000000981:diagnostic imaging*; D012852:Sinusitis / Q000601:surgery; D014057:Tomography, X-Ray Computed
chemical_list: D000900:Anti-Bacterial Agents; D000893:Anti-Inflammatory Agents; D004338:Drug Combinations; D009823:Ointment Bases; D009824:Ointments; C008744:hydrocortisone, oxytetracycline drug combination; D010232:Paraffin; D006854:Hydrocortisone; D010118:Oxytetracycline