A new species of Vehilius Godman, 1900 (Lepidoptera, Hesperiidae, Hesperiinae) endemic to the Caatinga, northeastern Brazil: taxonomy, biology and behavior.

A new species belonging to the genus Vehilius Godman, 1900, Vehilius jabre Medeiros, Souza & Kerpel sp. nov., endemic to the Caatinga biome, northeastern Brazil, is here described based on data from adult and immature stages.

Klippel-Trenaunay syndrome: report of case affecting oral cavity.

A patient is described with clinical characteristics suggesting a vascular syndrome that included an oral component. After an intraoral biopsy was taken and further evaluation performed, it was determined that the patient exhibited criteria consistent with Klippel-Trenaunay syndrome, a rare congenital vascular disorder.

Effect of nitrogen on Passiflora suberosa L. (Passifloraceae) and consequences for larval performance and oviposition in Heliconius erato phyllis (Fabricius) (Lepidoptera: Nymphalidae).

The present study examines the influence of nitrogen on growth rates, morphological and nutritional characteristics of Passiflora suberosa L., and the corresponding consequences for Heliconius erato phyllis (Fabricius) growth and oviposition. The treatments consisted of different nitrogen doses (0, 150 and 300 mg L(-1)) applied to the soil.

Stevens-Johnson syndrome in an HIV-infected patient.

Stevens-Johnson syndrome (SJS) is a severe and sometimes lethal form of erythema multiforme most often associated with a drug hypersensitivity reaction. HIV-infected patients suffer a higher incidence of SJS than the general population. This article details a case of nevirapine-induced SJS in an HIV-seropositive man and reviews the clinical features of erythema multiforme, SJS, and their association with drugs commonly used in the treatment of HIV infection.

Oral mucosal herpes simplex ulceration in an HIV-seropositive man.

Herpes simplex virus (HSV) is a frequent cause of oral mucosal ulceration in HIV-seropositive individuals. The case reported here illustrates the clinical presentation, diagnosis, and management of oral ulceration due to HSV.

Advances and new concepts in oral and maxillofacial pathology.

New techniques in surgical pathology at the cellular and molecular levels offer the clinician help in determining modalities of treatment of specific diseases. In addition to routine staining, adjunctive tests such as immunohistochemical analysis, and the various methods of evaluating nucleic acid have helped make this possible. The efficacy of fine-needle aspiration biopsy has been enhanced by these diagnostic aids that enable the assessment of information from small amounts of tissue.

Metastatic mesothelioma of the oral cavity. Report of two cases.

Malignant mesothelioma is an aggressive neoplasm originating from the serosal surfaces of the pleural or peritoneal cavity. The following article describes two cases of metastatic mesothelioma to the oral cavity; one involves the tongue, the other involves the mandible. The diagnostic criteria for differentiating metastatic mesothelioma from adenocarcinoma are also discussed.

Cytomegalovirus infections of the oral cavity. A report of six cases and review of the literature.

Cytomegalovirus is responsible for a significant percentage of asymptomatic viral infections worldwide. Although virtually any cell or organ may be infected, involvement of the oral cavity is uncommon. Only nine well-documented examples of intraoral cytomegalovirus infections were found in a review of the English-language literature.

Epithelioid angiosarcoma of the maxilla. A case report and review of the literature.

Epithelioid angiosarcoma is a rare vascular tumor composed of a proliferation of cytologically malignant epithelioid endothelial cells. These tumors are fully malignant and can pursue a rapidly progressive course. A case of primary epithelioid angiosarcoma of the maxilla is presented.

Benign fibrous histiocytoma of the maxilla.

Benign fibrous histiocytomas of bone are unusual neoplasms that often are confused with metaphyseal fibrous defects. Although the two lesions have overlapping microscopic characteristics, they differ in their clinicopathologic presentations. This report describes the clinicopathologic features of the first reported case of benign fibrous histiocytoma involving the maxilla and the fourth description of this tumor in the jawbones.

Oral Kaposi's sarcoma: a clinicopathologic study of 23 homosexual and bisexual men from the New York metropolitan area.

A total of 3970 cases of Kaposi's sarcoma (KS) associated with the acquired immunodeficiency syndrome had been reported to the Centers for Disease Control by the end of 1986. The prevalence of oral KS in patients with KS of the skin varies, reaching a maximum of 44% in one published study. We present a retrospective clinicopathologic analysis of 23 previously unreported cases of oral KS in male homosexual and bisexual patients from the New York metropolitan area.

Trichilemmoma of the lip: report of case.

A case of trichilemmoma of the upper lip has been presented and the entity is discussed. This particular case, similar to so many others reviewed in the literature, was mistaken for a basal cell carcinoma or verruca.

An unusual skin reaction following local anesthetic injection. Review of the literature and report of four cases.

Four cases of an unusual skin eruption related to mandibular block injection are presented. The authors suggest an immunologic basis for the reaction, probably to the methylparaben preseravtive, and discuss a possible pathogenic mechanism. The medical-dental literature concerning untoward reactions to lidocaine is reviewed; particular attention is given alleged allergic reactions.

Solitary intraoral keratoacanthoma. Report of a case.

The keratoacanthoma is a tumorlike proliferation which is rarely seen in the oral cavity. Both clinically and microscopically, it may bear close resemblance to squamous-cell carcinoma. The following article discusses the keratoacanthoma and, in addition, presents a case report of solitary intraoral keratoacanthoma.

The papillary cystadenoma of minor salivary gland origin.

This article reviews the literature of the papillary cystadenoma of minor salivary gland origin and discusses and attempts to clarify the true nature of these lesions. The criteria for diagnosis are presented, and classification of this lesion based on the Histological Typing of Salivary Gland Tumours (World Health Organization) is suggested. In addition, an interesting variant, which we have called the papillary cystadenoma, mucous-cell type, is presented.

Desmoplastic fibroma (fibromatosis) of the jawbones. Report of a case and review of the literature.

Desmoplastic fibroma (fibromatosis) is rarely seen as a primary tumor of bone. Its occurrence as a central lesion in the jaws is even more uncommon. The case of a 26-year-old woman with a central desmoplastic fibroma of the body of the mandible is described.