Evagelos F Kalfarentzos

Evangelismos Hospital, Athínai, Attica, Greece

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Publications (5)1.25 Total impact

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    ABSTRACT: Werner syndrome, also called progeria of the adult and pangeria is a rare autosomal recessive disorder that affects connective tissue throughout the body. It is associated with premature ageing and an increased risk of cancer and other diseases. The mean survival for patients with Werner syndrome is 47 years. Death usually occurs when patients are aged 30-65 years because of atherosclerosis or malignant tumours. The purpose of this paper is to present a patient with Werner syndrome exhibiting a chondrosarcoma of the left temporomandibular joint and ramus. To the best of our knowledge this is the first case, of a Werner syndrome patient with an associated head and neck chondrosarcoma being reported. The diagnostic procedure followed and management of the patient are outlined in the paper as well.
    Journal of cranio-maxillo-facial surgery: official publication of the European Association for Cranio-Maxillo-Facial Surgery 01/2013; · 1.25 Impact Factor
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    ABSTRACT: Pleomorphic adenoma is the most common neoplasm of the parotid gland. It is a benign tumor composed of epithelial and myoepithelial cells arranged in various morphological patterns. The most common reasons contributing to a recurrent disease are obvious or underestimated tumor spillage, incomplete excision, and violation of the pseudocapsule of the tumor. This article presents a case of gross multinodular recurrence of a parotid gland pleomorphic adenoma in a 38-year-old female patient. Upon clinical examination of the homolateral neck, multiple, painless, well-defined, palpable, nontender masses and subcutaneous nodules of the right parotid and homolateral neck region were revealed. The patient was treated with surgery and subsequent radiation therapy. Histologic examination of the resected specimen was suggestive of a recurrent pleomorphic adenoma disease. There were no signs of malignant transformation in the specimen. The diagnostic procedure followed, and management of the patient is outlined in the paper. Pleomorphic adenoma is the most common tumor of the parotid gland. In spite of being a benign neoplasm, inadequate management of the lesion may lead to problems such as local recurrence or malignant transformation. Management of recurrent tumors is challenging because the probability of subsequent recurrence increases with each recurrent episode, thus making local control increasingly difficult and damage to the facial nerve more likely.
    Oral and Maxillofacial Surgery 06/2011; 16(1):137-40.
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    ABSTRACT: Sublingual salivary gland neoplasms are extremely rare, accounting for only 0.3-1% of all epithelial salivary gland tumors. Most of the sublingual tumors are malignant, adenoid cystic carcinoma (ACC) and mucoepidermoid carcinoma (MEC) being the most common histological types. The coexistence of two salivary gland tumors located in different major salivary glands is uncommon. A rare case of two simultaneous tumors of the major salivary glands, one in the sublingual and the other in the contralateral parotid gland in a female patient is reported. The diagnostic procedure followed, and the management of the patient, is outlined in the paper.
    Oral and Maxillofacial Surgery 09/2009; 13(4):221-4.
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    ABSTRACT: Dermoid cysts of the floor of the mouth and submandibular space represent an unusual clinical entity. A case of an enlarged median dermoid cyst in a young female adult causing obstruction of the airway is reported. The need of an extraoral and intraoral incision for the removal of the cyst is discussed, along with a review of the literature.
    Oral and Maxillofacial Surgery 08/2009; 13(3):181-4.
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    ABSTRACT: The aim of this study was to comparatively evaluate the use of a three-dimensional (3D) square-shaped plate for the treatment of mandibular angle fractures. Synthetic mandible replicas were used to evaluate the effectiveness of the 3D square plate along with three other mandibular angle plating techniques. The plating techniques consisted of: (1) a 3D miniplate (2 x 2 holes, square, 2 mm); (2) a 3D miniplate (6 x 2 holes, curved, 2 mm); (3) two miniplates (four holes, straight, 2 mm and 1.6 mm); and (4) one single miniplate (four holes, straight, 2 mm). Each group was subjected to incisal and homolateral molar region loading by a tensile materials testing machine (Monsanto Tensometer 20). Load stiffness values and peak measurements of the fracture gap distraction at the superior aspect of the mandible were measured. The mean values (+/-standard deviation) were derived and compared using one-way analysis of variance, with statistical significance set at p < 0.05. For homolateral molar loading, statistically significant differences existed within groups (p < 0.05). For incisal edge loading, no statistically significant differences were found for stiffness among the fixation methods tested. Gap distraction at the superior aspect of the mandible was limited for three of the groups tested. Under the conditions tested, the 3D square plate system provided the most favorable mechanical behavior.
    Oral and Maxillofacial Surgery 07/2009; 13(3):139-44.