Frequency of BRAF V600E immunoexpression in ameloblastomas: a multi-institutional analysis of 86 cases in Latin America and comprehensive review of the literature.

BACKGROUND: Paracoccidioidomycosis (PCM) is the leading cause of death among systemic mycoses in Brazil. On the other hand, oral squamous cell carcinoma (OSCC) is the most prevalent malignant neoplasm of the mouth. Both lesions rarely affect the tongue dorsum and may share similar clinical characteristics. This study aimed to retrieve cases of single oral ulcers diagnosed as PCM or OSCC. MATERIAL AND METHODS: A cross-sectional retrospective study was conducted. All patients who had a single ulcer on dorsum of the tongue and confirmed diagnosis of PCM or OSCC were evaluated. RESULTS: A total of 9 patients (5 women and 4 men) were evaluated, 5 patients had OSCCs (mean age = 69,8 years old), and 4 patients PCM (mean age = 51 years old). Most of the lesions were infiltrated and indurated in the palpation exam. Duration ranged from 1 to 12 months (mean time of 5.2 months and 4.7 months for OSCC and PCM, respectively). OSCC was the main clinical diagnosis hypothesis. CONCLUSIONS: Although uncommon, PCM and OSCC should be considered as a differential diagnosis hypothesis in infiltrated ulcers on the tongue dorsum. Incisional biopsy is mandatory to confirm the diagnosis and indicate the appropriate treatment.

[Breastfeeding and antiinfectious agents]. / Uso de antibióticos y lactancia materna.

Not infrequently an infection or an antibiotic treatment needed by a lactating mother leads to medical advice against breastfeeding. However, advising against breastfeeding increases morbi-mortality risk in the infant. Besides there are few anti-infectious agents not compatible with breastfeeding, and in these cases, there is usually an alternative to treat the mother's illness. Thus it is important for health professionals to be informed of best sources where to look for the best treatment for the mother compatible with breastfeeding. This article offers the reader a review of basic pharmacodynamics which influence drug use in human lactation, an alphabetically ordered list of available anti-infectious agents coded by numbers indicating risk level, and some web recommendations for the interested reader. We hope to offer the interested reader a useful tool which may prevent some cases of physician led abandonment of lactation.