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At least 19 recordsLinked to original sources
PubMedDate not supplied

[Sialography of the normal parotid in relation to neoplasm diagnosis (1)].

We reviewed the normal sialographic image of the parotid gland directed to the sialographic interpretation for the diagnosis of its neoplasms. Through different examples is presented the normal image with accessories lobules and is presented the ductal morphology because these aspects are important signs for the diagnosis of salivary gland neoplasms. Also is stressed the importance of the emptying because is a good indicator for the ubication of the tumor.

Humans↗
PubMed1981

Anaplastic malignant neoplasms: diagnosis and treatment.

We studied 35 patients referred to M.D. Anderson Hospital and Tumor Institute with a histologic diagnosis of undifferentiated malignant neoplasms. Further subclassification of the tumors based on elements suggestive of tumor differentiation detected on light and electron microscopic examination was possible in 22 of the 35 patients. The stage of tumor at diagnosis was of prognostic importance. Patients who had localized surgically resectable disease had significantly longer survival than those with regional tumor invasion or distant tumor metastasis. Patients with metastatic subclassified tumors had response to chemotherapy and survival duration not different from patients with metastatic undifferentiated tumors. The use of multidrug combinations containing cyclophosphamide, doxorubicin HCl (Adriamycin), and dacarbazine (DTIC-Dome) seems to improve the survival of patients with metastatic anaplastic malignant neoplasms.

Adolescent↗
PubMed2002

Parotid neoplasms: diagnosis, treatment, and intraparotid facial nerve anatomy.

The demographics of parotid neoplasms in different populations have been reported by various centres. In this investigation, we reviewed retrospectively all the in-patient and out-patient charts and records of 108 patients who were diagnosed with parotid neoplasms and received parotidectomies in our department from 1 January 1993 to 15 April 2000. Patient age, gender, tumour pathology, fine-needle aspiration cytology results, and the intraparotid anatomy of the facial nerve were noted. We showed that despite the difference between our Taiwanese and previously studied patient populations, both populations had a similar distribution, diagnosis and treatment of parotid neoplasms, although the incidence of parotid tuberculosis was higher in our patient group. In addition, the facial nerve anatomy within the parotid gland had three main branching patterns in the upper and lower division.

Adenolymphoma↗
PubMedDate not supplied

Malignant thymic neoplasms: diagnosis by fine-needle aspiration biopsy with histologic, immunocytochemical, and ultrastructural confirmation.

Two cases of malignant thymic neoplasms diagnosed by transthoracic fine-needle aspiration (FNA) biopsy under fluoroscopic and computerized axial tomography (CT) guidance with histologic, immunocytochemical, and ultrastructural confirmation are presented. The clinical and cytomorphologic features of the first case were typical of a malignant thymoma. A characteristic biphasic cell population of benign epithelial cells and mature lymphocytes was seen in Diff-Quik- and Papanicolaou-stained smears from the anterior mediastinal mass and the paravertebral metastasis and was confirmed by histologic examination. Immunoperoxidase studies for T and B cell subsets demonstrated lymphocytes with the thymic lymphocyte phenotype (Leu 6). Electron microscopic (EM) examination revealed epithelial cells with desmosomal attachments, tonofilaments, and extended cell processes along with mature lymphocytes. FNA biopsy of the second case demonstrated features of a thymic carcinoma. Individually scattered and loosely clustered small groups of markedly anaplastic and pleomorphic large cells were seen both in the Diff-Quik- and Papanicolaou-stained smears. EM performed on the FNA specimen demonstrated the poorly differentiated epithelial nature of the malignancy. The mediastinal mass was partially resected and demonstrated an undifferentiated carcinoma staining positively for low-molecular-weight cytokeratin. Ultrastructure demonstrated cell attachments and relationships consistent with carcinoma. The lack of a lung or other extrapulmonary primary tumor was consistent with a thymic carcinoma. These cases demonstrate the value of performing EM and immunocytochemistry on material obtained by fine-needle aspiration, which can aid in establishing the correct diagnosis and facilitate the clinical management of patients with malignant thymic neoplasms.

Adult↗