Magnetic resonance imaging findings of nodular fasciitis in the mental region

Nodular faseiitis (NE) is a benign reactive lesion of the soft tissues related to the fascia and characterized by fibroblastic proliferation. The most common site is the upper extremities (46%), followed by the head and neck region (20%). In the orofacial region, the lesion typically develops within...

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Bibliographic Details
Published in:Odontology 2004-09, Vol.92 (1), p.77-80
Main Authors: Katada, Tsutomu, Tsuchimochi, Makoto, Oda, Takaaki, Sasaki, Yoshihiko, Toyama, Michio, Katagiri, Masataka
Format: Article
Language:English
Subjects:
Adult
Arterioles - pathology
Chin - pathology
Contrast Media
Dental research
Dentistry
Facial Muscles - pathology
Fasciitis - diagnosis
Fasciitis - pathology
Female
Fibroblasts - pathology
Gadolinium DTPA
Humans
Image Enhancement
Magnetic Resonance Imaging
NMR
Nuclear magnetic resonance
Venules - pathology
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Description
Summary:Nodular faseiitis (NE) is a benign reactive lesion of the soft tissues related to the fascia and characterized by fibroblastic proliferation. The most common site is the upper extremities (46%), followed by the head and neck region (20%). In the orofacial region, the lesion typically develops within the subcutaneous structures overlying the angle and inferior border of the mandible and the zygoma. Magnetic resonance imaging (MRI) findings of NE in the orofacial region are almost unreported in the literature. In the present case report, we describe MRI findings of mental NE in a 19-year-old woman. MRI revealed a welldefined, round soft-tissue mass lying on the mentum. On T1-weighted MRI, the lesion was isointense to skeletal muscle; it was hyperintense to skeletal muscle on T2-weighted MRI, and was enhanced by Gd-diethylenetriamine pentaacetic acid (DTPA). Histologic examination revealed abundant myxoid degeneration dispersed in the lesion. The T2-weighted higher heterogeneous signal intensity was likely due to abundant myxoid degeneration or the cellular component of the lesion. A strong bright signal intensity belt appeared in the periphery of the lesion on Gd-DTPA enhancement. This rim enhancement appearred to represent small arterioles and venules that were visible in the peripheral area on histologic examination.
ISSN:1618-1247
1618-1255
DOI:10.1007/s10266-004-0042-5