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F J Diaz Gonzalez

Publications and source records attributed to F J Diaz Gonzalez.

5 recordsLinked to original sources
PubMed1997

Squamous cell carcinoma of the oral cavity in patients younger than 40 years.

Squamous cell carcinoma of the head and neck has been regarded as a disease affecting the elderly. Several etiologic factors have been demonstrated, such as tobacco and alcohol use and premalignant lesions, whereas others have been suspected, such as genetic or immunodeficiency disorders. Recently, some reports have addressed a tendency toward an increase in the incidence of squamous cell carcinoma in young patients. In recent years we have observed an increase in the number of squamous cell carcinomas in patients younger than 40 years. Therefore we retrospectively reviewed our clinical experience of cancer in those patients younger than 40 years. After screening 505 clinical charts, 294 patients met the criteria to enter our study. Twenty-four (8.2%) patients were aged 40 years or younger. Data collected included the history of premalignant lesions, etiologic factors, TNM stages, treatment modalities, and histopathologic issues. Statistical analysis with Kaplan-Meier survival rates and log-rank tests between various variables were applied. A significant association in survival was observed between patterns of recurrence (p = 0.031) and presence of neoplastic cells 5 mm or closer to the specimen margin. On the other hand, a lack of association was assessed in carcinogenic-related habits and in premalignant lesions. Likewise, although men showed a slightly worse prognosis than women, statistically no significant differences were found (p = 0.27).

Adolescent↗
PubMed1994

The temporalis muscle flap: an evaluation and review of 38 cases.

This article analyzes the authors' experience with the temporal myofascial flap in orbital, maxillary, floor of the mouth, tongue, retromolar trigone, and buccal mucosa reconstruction after oncologic surgery. Thirty-eight patients were treated and evaluated after using this technique. Four of the patients received the flap to restore orbital defects; the other 34 flaps were used in oral reconstruction. The flap remained viable in all instances. Most of the patients experienced no perioperative complications. Ten patients (29.4%) with flaps transposed to the oral cavity showed partial wound dehiscence. Two patients experienced temporomandibular joint dysfunction, two severe reduction in the oral aperture, 22 had mild depression of the temporal fossa, and four had mild to severe alteration in the facial aesthetics secondary to bone resection. All flaps transposed to the oral cavity showed good epithelialization and adaptation to the recipient site.

Adolescent↗
PubMed1994

Primary mandibular reconstruction with bridging plates.

25 cases in which the mandible was resected and reconstructed using a reconstruction plate (AO titanium reconstruction system and Leibinger titanium reconstruction system) are presented. 16 patients suffered from oral carcinoma, 7 presented with odontogenic tumours and 2 had chronic osteomyelitis of the mandible. The mean age was 54.2 years, the male to female ratio was 2.6:1. 3 patients had a reconstruction plate for mandibular resection without continuity defect (marginal resection), in all the other patients the reconstruction plate bridged a mandibular resection with a continuity defect: 13 were located in the body, body-angle or ascending ramus with preservation of the mandibular condyle; 4 hemimandibulectomies with disarticulation of the TMJ; and 5 involved the anterior arch, crossing the midline. 12 patients received radiotherapy (3 pre-operatively). Only 3 patients with significant local side effects needed the treatment to be stopped for a period of time. There was no perioperative mortality. Only one plate was removed. Although minor complications were noted in 11 patients, the general improvement in the functional and cosmetic balance of the patients when compared with patients in whom no plate was used, justifies the use of this reconstruction system, in our opinion.

Adolescent↗
PubMed1991

[Cranio-orbital neurofibrosarcoma].

We present a type 1 neurofibromatosis case with sarcomatous degeneration of a cranio-orbital neurofibroma, its surgical evolution and the cytogenetics and cellular proliferative potential features (CMF, Ki-67 antibody).

Adult↗