1/12. Malignancy of the parotid gland with primary symptoms of a temporomandibular disorder.The purpose of this case report is to highlight the possibility that malignant neoplasms of the deep lobe of the parotid gland may present as a temporomandibular disorder (TMD). Two patients who were eventually diagnosed with deep-lobe parotid tumors were retrospectively analyzed clinically, radiographically, and pathologically. For the first patient, there was a prolonged delay in establishing the correct diagnosis; for the second patient the delay was shorter. This was done primarily by computed tomographic examination. Despite aggressive surgical, radiotherapeutic, and chemotherapeutic treatment, both patients died from their malignant disease. All clinicians who treat TMD must be aware of the rare possibility of deep-lobe parotid tumors presenting as a TMD.- - - - - - - - - - ranking = 1keywords = gland (Clic here for more details about this article) |
2/12. Mandibular and temporomandibular joint arthropathy in the differential diagnosis of the parotid mass.OBJECTIVE: To increase awareness of temporomandibular joint and mandibular disease in the overall evaluation and diagnosis of the parotid mass. STUDY DESIGN: We describe clinical presentations of pigmented villonodular synovitis and synovial chondrocalcinosis of the temporomandibular joint, as well as osteoma of the mandible, as they may initially suggest primary neoplasms of the parotid gland. CONCLUSIONS: Preauricular swelling is a common presenting symptom for patients visiting an otolaryngologist. Often this symptom is suggestive of a parotid mass. However, lesions of the temporomandibular joint and mandible may also present in this fashion.- - - - - - - - - - ranking = 0.2keywords = gland (Clic here for more details about this article) |
3/12. Incidentally found and unexpected tumors discovered by MRI examination for temporomandibular joint arthrosis.We examined the frequency of incidentally found or unexpected tumors discovered at the time of magnetic resonance imaging (MRI) examinations in the temporomandibular joint (TMJ) region for patients with suspicion of TMJ arthrosis. Five MR images (T1-weighted transverse scout image and proton density and T2-weighted oblique sagittal images at the open and closed mouth) were acquired. In 2776 MRI examinations of TMJ arthrosis, two tumors were discovered. They consisted of an adenoid cystic carcinoma in the deep portion of the parotid gland, and a malignant tumor extending from the infratemporal fossa to the parapharyngeal space. The rate of incidentally founded or unexpected tumors in TMJ examinations was low (0.072%), but the two tumors found were malignant tumors, and therefore, scout image should be carefully examined, not only used for positing the slice.- - - - - - - - - - ranking = 0.2keywords = gland (Clic here for more details about this article) |
4/12. Epidermoid cyst in the temporomandibular joint after a dermal graft.A very rare case of epidermoid cyst of the left temporomandibular join (TMJ) after a dermal graft inserted as the interposing material in the surgical correction of TMJ ankylosis is presented. Two years after the surgery, a cystic lesion the size of a walnut was observed in the TMJ region. The cyst contained an odorless, straw-coloured mucoid fluid and a wall lined by stratified squamous epithelium containing orthokeratin. It contained no hair follicles or sweat glands.- - - - - - - - - - ranking = 0.2keywords = gland (Clic here for more details about this article) |
5/12. Synchronous occurrence of ipsilateral synovial chondromatosis of the temporomandibular joint and pleomorphic adenoma of the parotid gland.We present a unique case characterized by true coexistence of synovial chondromatosis (SC) of the temporomandibular joint (TMJ) with a salivary gland tumor, specifically pleomorphic adenoma, of the ipsilateral parotid gland. The possibility that the condition was the result of a single pathologic entity, ie, SC with extracapsular involvement or pleomorphic adenoma affecting the TMJ, received strong consideration. Nonetheless, careful assessment of the clinical, radiographic, MRI, and surgical findings strongly suggested the synchronous occurrence of 2 separate pathologic processes, despite their close proximity. Further, histopathologic examination confirmed the presence of both SC of the TMJ and pleomorphic adenoma of the superficial lobe of the ipsilateral parotid gland. Previous reports have pointed out the possibility of misdiagnosing extracapsular spread of SC as a salivary gland tumor. Vice versa, it has been noted that parotid gland tumors, especially malignant, may cause TMJ symptoms similar to those of SC. However, to the best of our knowledge, this is the first time that true synchronous occurrence of ipsilateral SC and pleomorphic adenoma, or parotid tumor of any kind, is reported.- - - - - - - - - - ranking = 1.8keywords = gland (Clic here for more details about this article) |
6/12. temporomandibular joint cyst presenting as trigeminal neuropathy and middle fossa mass: case report.OBJECTIVE: We describe the case of a temporomandibular joint cyst eroding into the middle fossa, initially causing compression of the trigeminal nerve and trigeminal neuropathy, and ultimately causing destruction of the second division of the nerve with facial numbness. CLINICAL PRESENTATION: A 50-year-old woman with rheumatoid arthritis on prednisone developed right-sided, initially lancinating facial pain that ultimately became dull in nature in the maxillary division of the trigeminal nerve. This change in pain was associated with the development of numbness in the same distribution. The facial pain gradually resolved, but the facial numbness persisted. Imaging revealed a heterogeneously enhancing mass in the middle fossa lateral to Meckel's cave. INTERVENTION: During surgery, the dura was elevated, and a smooth, firm lesion with several thinly encapsulated, cystic areas containing viscous, white fluid was identified. The mass had eroded through the floor of the middle cranial fossa. The thick, fibrous capsule was freed from the bone edges and was sectioned sharply extracranially. Pathological evaluation was consistent with a cyst originating from the temporomandibular joint. CONCLUSION: Extracranial mass lesions involving the middle fossa structures are uncommon and typically arise from the parotid gland. This case represents the first example of a middle fossa mass originating from an abnormal temporomandibular joint and a unique cause of trigeminal neuropathy. After excision, there has been no recurrence after 2 years of follow-up.- - - - - - - - - - ranking = 0.2keywords = gland (Clic here for more details about this article) |
7/12. Synovial chondromatosis of the temporomandibular joint presenting as a parotid mass: possibility of confusion with benign mixed tumor.Synovial chondromatosis is a rare metaplastic disorder of synovium in which cartilaginous nodules are produced within joint spaces. An unusual case involving the temporomandibular joint, with extension of the lesion beyond the joint capsule into the parotid gland, is described. The patient had a history of previous superficial parotidectomy for a "benign mixed tumor." review of the histologic features revealed both lesions to be identical. The reason for confusion between the two diagnoses is discussed.- - - - - - - - - - ranking = 0.2keywords = gland (Clic here for more details about this article) |
8/12. Synovial osteochondromatosis of the temporomandibular joint. An historical review with presentation of 3 cases.Loose bodies in joints have long held the fascination of surgeons and their recognition clearly enjoys a most distinguished antiquity (Pare, 1558; Haller, 1764; Barwell, 1876; Halstead, 1895) despite the rarity of their occurrence. This paper presents an historical review of the subject in conjunction with a report of three cases operated upon by one of the authors (JdeBN). The results have been critically reviewed by pathologists with a catholicity of experience in the field. The condition is singularly uncommon in the jaw joint, and must rank with synovial cyst and para-articular chondroma as an unusual cause of a swelling of firstly the temporomandibular joint and secondly the parotid gland. Earlier workers recognized the value of comparative pathology to illustrate the nature of a genus of tumours and it is educative to read the following: "A good physiological type for the loose cartilaginous bodies which infest joints is furnished by the temporomandibular joint of the skate. A recess communicating with this articular cavity usually contains a collection of smooth cartilaginous bodies, in contour and size like melon seeds." Bland-Sutton (1907).- - - - - - - - - - ranking = 0.2keywords = gland (Clic here for more details about this article) |
9/12. osteochondrosis of the temporomandibular joint presenting as an apparent parotid mass.A mass in the preauricular area usually indicates the presence of a neoplastic or inflammatory process within the parotid gland. osteochondrosis is an unusual disease process affecting large joints, particularly the knee. Rarely, the temporomandibular joint (TMJ) may be affected. The disease process involves the synovial lining of the TMJ and is commonly ascribed to a benign neoplastic process or metaplasia, although trauma and inflammation have also been implicated. This process can result in single or multiple loose cartilage bodies (joint mice) within the joint cavity. Symptoms are usually those of a mass in the preauricular area, or those of TMJ dysfunction (pain, dislocation, click, decreased range of motion). Physical findings are limited to presence of a mass in the pre-auricular parotid area with a paucity of other parotid findings. Treatment involves removal of the loose cartilage bodies from the TMJ and possibly the synovial lining, if it appears to be severely damaged.- - - - - - - - - - ranking = 0.2keywords = gland (Clic here for more details about this article) |
10/12. Multimodality imaging of cervicofacial actinomycosis.actinomycosis is an uncommon chronic disease usually caused by actinomyces israelii. It affects the soft tissue mainly but sometimes spreads to involve salivary glands, bone, or even the skin of the face and neck. Five cases have been seen in our department. Several imaging modalities were used to assist in making the diagnosis. The cases are presented and the literature reviewed. ultrasonography was found to be a useful diagnostic tool especially in developing the differential diagnosis.- - - - - - - - - - ranking = 0.2keywords = gland (Clic here for more details about this article) |
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