Osteochondroma of the temporal styloid process: a common disease in a rare but vulnerable location

Chaturvedi, Rahul; Lin, Grace; Wang, Wilbur; Smitaman, Edward

doi:10.1016/j.clinimag.2020.04.011

Cited by 4 publications

(2 citation statements)

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“… 13 Osteochondroma in the stylohyoid chain is also rare and features unique aspects that can be differentiated from osteomas. 14 15 The typical imaging findings are cortical expansion continuous with the medullary cavity of the bone, a cartilage cap at the edge of the lesion, and flaky or linear calcifications inside the lesion. 16 …”

Section: Discussionmentioning

confidence: 99%

Osteoma of the stylohyoid chain: A rare presentation in a CBCT study

Kim,

Patel,

Syed

2024

Imaging Sci Dent

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A 54-year-old male patient presented for a periodic check-up at the dental clinic. A panoramic radiograph showed bilateral ossification of the stylohyoid ligament with an oval radiopacity on the right side. Cone-beam computed tomography revealed a well-defined, homogenous hyperdense entity from the lower third of the ossified stylohyoid ligament on the right side. The differential diagnosis of osteoma on the stylohyoid chain includes Eagle syndrome and benign tumors of the stylohyoid chain and adjacent structures. Osteoma rarely manifests in the neck. Even more infrequent are tumors originating from the stylohyoid chain, with only a single documented case of osteoma reported in the literature in 1993. Due to the asymptomatic status, no surgical intervention was advised, and the case would be monitored periodically. This case report describes the details of an osteoma that emerged from the stylohyoid chain, marking it as the second recorded occurrence of this highly rare condition.

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Section: Discussionmentioning

confidence: 99%

Osteoma of the stylohyoid chain: A rare presentation in a CBCT study

Kim,

Patel,

Syed

2024

Imaging Sci Dent

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“…e most common location is the mandible, particularly the mandibular condyle and coronoid process, but it can arise from any part of the mandible or other osseous structures in the head and neck. [34][35][36][37][38] On imaging, head and neck osteochondromas are similar to osteochondromas seen elsewhere in the body and are seen as exophytic osseous lesions with continuity of bone marrow from the parent bone into the tumor [Figure 6]. A layer of cartilage known as the cartilaginous cap is seen at the growing end of the lesion.…”

Section: Osteochondromamentioning

confidence: 99%

Imaging features of cartilaginous tumors of the head and neck

Wangaryattawanich

Agarwal

Rath

2021

JCIS

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There is a wide spectrum of head and neck cartilaginous lesions which include both neoplastic and nonneoplastic processes. Cartilaginous tumors of the head and neck are uncommon, posing a diagnostic challenge. Benign cartilaginous tumors that may occur in the head and neck include chondroma, chondroblastoma, chondromyxoid fibroma, osteochondroma, and synovial chondromatosis. Chondromesenchymal hamartoma is a rare non-neoplastic cartilaginous lesion that is included for the 1first time in the new WHO classification and radiologically can mimic a tumor. Malignant cartilaginous tumors include chondrosarcoma and chondroid variant of chordoma. Characteristic tumor locations, internal chondroid matrix calcification, and typical T2 hyperintense signal secondary to high-water content within the extracellular matrix of the hyaline cartilage are useful imaging features that narrow the differential diagnosis and help in diagnosing these diseases. This article presents a narrative review of the anatomy of the head and neck cartilaginous structures, discusses the current knowledge and imaging spectrum of benign and malignant cartilaginous tumors and tumor-like lesions of the head and neck.

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