Organized hematoma in the paranasal sinus and nasal cavity—Imaging diagnosis and pathological findings

• Published in: Auris, nasus, larynx Vol. 37; no. 2; pp. 173 - 177
• Main Authors: Omura, Go, Watanabe, Kenta, Fujishiro, Yoshinori, Ebihara, Yasuhiro, Nakao, Kazunari, Asakage, Takahiro
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier Ireland Ltd 01.04.2010
• Subjects: Adult; Blood boil; Diagnosis, Differential; Dilated vessels; Endoscopy; Female; Fibrosis; Hematoma - diagnosis; Hematoma - pathology; Hematoma - surgery; Humans; Imaging findings; Magnetic Resonance Imaging; Male; Middle Aged; Nasal Cavity - pathology; Nasal Cavity - surgery; Nasal Obstruction - diagnosis; Nasal Obstruction - pathology; Nose Diseases - diagnosis; Nose Diseases - pathology; Nose Diseases - surgery; Organized hematoma; Otolaryngology; Paranasal Sinus Diseases - diagnosis; Paranasal Sinus Diseases - pathology; Paranasal Sinus Diseases - surgery; Pathological findings; Retrospective Studies; Tomography, X-Ray Computed; Organized hematoma; Dilated vessels; Pathological findings; Imaging findings; Blood boil
• ISSN: 0385-8146; 1879-1476
• DOI: 10.1016/j.anl.2009.06.009

Abstract Objectives The “organized hematoma” is a non-neoplastic, hemorrhagic lesion, which can develop in the paranasal sinus and nasal cavity. This is the first report on the relationship between the imaging and pathological findings. Methods We diagnosed organized hematoma, based on three criteria: no existence of neoplastic cells; consistency of hematoma and fibrosis; and development from the paranasal sinus and nasal cavity. We retrospectively investigated six cases from the patients’ medical records. Results On the imaging findings, the central part of the lesion was enhanced more strongly than the lesion periphery. All of the pathological findings were hematoma at the center, and fibrosis at the periphery. In three of the cases, dilated vessels were found but not in the other three. Conclusion We found that the biphasic appearance of the imaging findings correlated with that of the pathological findings. There are two pathological types – the dilated vessel type and the non-dilated vessel type.