Idiopathic facial aseptic granuloma.

Idiopathic facial aseptic granuloma (IFAG) is a condition that is commonly encountered in clinical practice, but is rarely reported. It appears in childhood and its pathogenesis is still unknown. It has a benign course with resolution within a few months without aggressive treatment. Microbiological tests are negative and histological findings are nonspecific. It is possible that this condition is part of the spectrum of granulomatous rosacea in childhood. We present two cases in which diagnosis of IFAG was established and resolved without sequelae following topical antibiotic treatment.

Squamous Cell Carcinoma: Clinical and Pathological Features and Associated Risk Factors in an Observational Study of 118 Patients.

BACKGROUND AND OBJECTIVE: In the latest edition of its cancer staging manual, the American Joint Committee on Cancer (AJCC) revised the criteria for staging squamous cell carcinoma (SCC) by introducing high-risk tumor features to define tumor stage (T) and help to identify tumors with a higher risk of metastasis. The aim of this study was to investigate the characteristics associated with SCC meeting the high-risk criteria defined by the AJCC for T2 lesions. PATIENTS AND METHOD: We performed a case-case observational study in which patients with SCC were included over a period of 18 months. We collected clinical, anthropometric, and tumor data, and analyzed these using PASW Statistics (SPSS) version 18. RESULTS: One-hundred eighteen patients, the majority of whom were men, were included. Mean age was 77 years. Over 70% of the tumors were located in the head region and a majority of tumors measured 2 cm or less. The prevalence of SCC T2 was 61.9%. The risk factors significantly associated with SCC T2 were an age of over 85 years (odds ratio [OR], 4.48), location in the head and neck region (OR, 3.38), presence of solar elastosis in the peritumoral tissue (OR, 2.08), a higher tumor growth rate (>1.5 mm·wk(-1); OR, 5.73), and higher cumulative exposure to smoking (>20 pack-years, OR, 3.63). CONCLUSIONS: Advanced age, location in the head and neck region, presence of solar elastosis, high tumor growth rate, and high cumulative smoking exposure were all significantly associated with the presence of SCC T2.

Allergic contact dermatitis to benzocaine: the importance of concomitant positive patch test results.

Local anesthetics are widely used in clinical practice, and adverse effects are not uncommon. Delayed hypersensitivity reactions are among the most common effects, but immediate-type reactions may also occur. Patch testing should be considered in patients with hypersensitivity reactions. We present a case of allergic contact dermatitis to benzocaine that was detected incidentally by patch testing and highlight the importance of correctly interpreting patch test results when there are concomitant positive reactions.

[Acral eruptive nevi after chemotherapy in children with acute lymphoblastic leukemia]. / Nevos acrales eruptivos tras quimioterapia en niños afectados de leucemia linfoblástica aguda.

Eruptive melanocytic nevi have mainly been associated with blistering cutaneous diseases and with immunosuppression, particularly after renal allograft transplantation, hematological neoplasms, or HIV infection. Thus, immunosuppression has been suggested to increase the possibility of melanocyte proliferation. We report two cases of children with acute lymphoblastic leukemia who, after receiving chemotherapy, developed severe motor polyneuropathy, and sudden onset of multiple melanocytic nevi on the soles.

[Study of membrane oligosaccharides in keratinocytes using the lectins in normal epidermis]. / Estudio de los oligosacáridos de membrana en los queratinocitos mediante aplicación de lectinas en epidermis normal.

The authors studied the oligosaccharides coated membrane of normal keratinocytes with the lectins HPA, PHA-L, RCA-120; and ConA. The results permit to have a pattern of normally epidermic differentiation.

[Hodgkin's disease of the skin]. / Hodgkin cutáneo.

The authors study a case of Hodgkin's disease type Rye III with specific infiltration of the skin. In cutaneous biopsy we find Reed-Stenberg cells. With treatment the cutaneous lesion diminishes without disappearing. A discussion is made about the Hodgkin's disease and its relation with lymphomatoid papulosis and its differential diagnostic with cutaneous lymphomas and the pathogenic way of cutaneous infiltration.

[Eosinophilic fasciitis. Response to treatment with cimetidine]. / Fasceitis eosinofílica. Respuesta al tratamiento con cimetidina.

Eosinophilic fasciitis is a syndrome of imprecise classification which usually responds well to corticosteroids. We report a patient who did not respond to such treatment but he improved with cimetidine therapy. The pathogenesis of this syndrome and the possible action mechanism of cimetidine are discussed.

[Atypical Sweet's syndrome. Apropos of 4 cases]. / Sindrome de Sweet atípico. A propósito de cuatro casos.

The authors study four cases of Sweet's syndrome in which the clinical manifestations differ from the original description, although the laboratory reports, the response to the treatment and histologic data were typical of this entity. By the way, the authors propose a hypothesis about the pathogenesis of this syndrome.

[Kawasaki syndrome]. / Síndrome de Kawasaki.

Kawasaki syndrome is not usual in our country. We report this case to stress the clinical importance of this syndrome in which dermatological signs predominate.