[Fifty years' retrospection of systemic study on salivary gland tumors].

Salivary gland tumors are a group of the most common tumors in the oral and maxillofacial region with obvious characteristics of clinical, histopathologic, and therapeutic aspects. During the past 50 years, our research group performed a systemic study on salivary gland tumors including imaging diagnosis, fine needle aspiration cytology, FT-mid-IR fiber optics spectroscopy, histopathologic features and biological behaviour of the tumors, functional parotid surgery, and (125)I seed implant branchytherapy. More reasonable principles of management for various types of the tumors were put forward based on the histopathologic features of the tumors.

Primary oncocytic carcinoma of the salivary glands: a clinicopathologic and immunohistochemical study of 12 cases.

Oncocytic carcinoma (OC) of salivary gland origin is an extremely rare proliferation of malignant oncocytes with adenocarcinomatous architectural phenotypes, including infiltrative qualities. To help clarify the clinicopathologic and prognostic features of this tumor group, herein, we report 12 OC cases arising from the salivary glands, together with follow-up data and immunohistochemical observations. There were 10 males and 2 females with an age range of 41 to 86 years (median age: 61.

[Basic and clinical research on salivary gland tumors].

Salivary gland tumors are a group of the most common tumors in the oral and maxillofacial region. They have features with complicated histopathologic classification and wide distribution. There is little knowledge on the clinicopathologic characteristics and clinical behaviors of salivary gland tumors of various locations and subtype.

Relation between nutritional state and postoperative complications in patients with oral and maxillofacial malignancy.

Purpose: To evaluate the role of nutrition in the development of postoperative complications in patients with oral and maxillofacial malignancy.

Patients And Methods: Ninety-six patients treated surgically for oral and maxillofacial malignancy, 27 of whom developed postoperative complications; the remaining 69 recovered uneventfully. Nutritional state and clinical variables in the two groups were compared.

[The impacts of various types of neck dissection on postoperative shoulder function for patients with oral squamous cell carcinoma].

Objective: To compare the impact of various types of neck dissection on postoperative shoulder function.

Methods: The shoulder functions of 66 patients with oral squamous cell carcinoma (OSCC) and cN0 necks who underwent various types of neck dissection were evaluated by Constant's shoulder function test and neck dissection impairment index at least 12 months after surgery.

Results: The patients with accessory spinal nerve reserved had better shoulder function than those with accessory spinal nerve resected.

[Analysis on occult micrometastasis in levels III - IV of cN0 neck in patients with oral tongue squamous cell carcinoma].

Objective: To investigate the frequency of micrometastasis in levels lII - IV of clinical negative neck (cN0) in patients with squamous cell carcinoma (SCC) of oral tongue, and to discuss the management of cervical lymph node for cN0 tongue SCC.

Methods: A total of 471 cervical lymph nodes derived from 25 patients with cN0 tongue SCC, including 263 lymph nodes in level III and 208 lymph nodes in level IV, were included in this study. All lymph nodes were re-examined by anti-cytokeratin (CK) immunohistochemical staining combined with semi-serial section per 500 microm.

[Senile chronic submandibular sialadenitis].

Objective: To evaluate the clinic characteristic and treatment of senile chronic submandibular sialadenitis.

Methods: The clinical records of the patients over 50 years old whose final diagnosis was chronic submandibular sialadenitis were reviewed. The patients were diagnosed as neoplasm of submandibular gland before operation, There was no radiographic sign of sialolithiasis, no clinical and laboratory signs of Sjögren syndrome or related autoimmune disease.

[Application of 99mTc(V)-dimercaptosuccinic acid imaging in detecting neck metastases in patients with oral squamous cell carcinoma].

Objective: To evaluate the applicability of 99mTc(V) -dimercaptosuccinic acid (99mTc (V) -DMSA) imaging in detecting neck metastases in patients with oral squamous cell carcinoma.

Methods: Single photon emission computer tomography (SPECT) scintigraphy with 99mTc(V) -DMSA was performed on 32 patients with primary squamous cell carcinoma in oral cavity. The coronal aspect of SPECT image was chosen, the region of interest (ROI) of the affected neck was drawn, and the radioactivity uptake value of the ROI was given by the computer to compare with the contralateral neck.

Myoepithelial carcinoma of the salivary glands: behavior and management.

Objective: To investigate the biological behavior and proper management of myoepithelial carcinomas of salivary glands.

Methods: Twenty-seven cases of myoepithelial carcinoma of salivary glands were retrospectively studied and their detailed clinical and follow-up data were presented.

Results: The subjects consisted of 17 men and 10 women aged 16 to 73 years (mean age: 51 years).

[Primary study on repair of mandibular defect using free fibular composite flap].

Objective: To summary the clinical application of free fibular composite flaps in repair of mandibular defect.

Methods: Fifty-eight cases of mandibular reconstruction using free fibular flaps, from June 1999 to November 2000, were reviewed, among which there were 37 cases of male and 21 cases of female, aged from 12 to 65 years old. All of the relevant data of the operation, such as the cause of the defect, design of the flaps, the blood vessels of the recipient and the complications, were included and analyzed.