RESUMO
As dermatofitoses são processos infecciosos de pele, pêlo e unhas muito comuns no mundo inteiro. Com o intuito de avaliar a epidemiologia das infecções causadas por estes fungos em Instituições Públicas de Araraquara, 105 amostras de indivíduos com suspeita clínica de dermatofitose foram examinadas no Laboratório de Micologia da Faculdade de Ciências Farmacêuticas, de agosto a dezembro de 2001 e, destas, 47 foram positivas para dermatófitos. Trichophyton rubrum foi a espécie prevalente (56,9%), seguida por Microsporum canis (17%), T. tonsurans (10,6%), T. mentagrophytes (8,5%) e Epidermophyton floccosum (4,3%). T. rubrum foi mais frequente nas lesões dos interdígitos (81,5%) e M. canis foi o principal envolvido nas lesões do couro cabeludo (58,3%). Portanto, houve predomínio de fungos antropofílicos e zoofílicos, respectivamente, dado este que está de acordo com as estatísticas dos estados brasileiros da região Sudeste e Sul, bem como de outras regiões do mundo em que estes fungos foram os mais frequentes isolados de tinha dos pés e do couro cabeludo. Neste estudo, foi também verificada elevada percentagem de T. tonsurans (41,7%) em tinha do couro cabeludo, dado este inédito na região Sudeste
Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Adulto , Pessoa de Meia-Idade , Dermatomicoses , Epidemiologia/estatística & dados numéricos , Hospitais PúblicosRESUMO
OBJECTIVE: To study the imaging features of patients with chronic ulcers of the leg that were associated with malignancy. DESIGN AND PATIENTS: All patients who on biopsy were proven to have malignancy--the majority of which were squamous cell carcinoma-were included in a prospective study. Ulcers limited to the foot were excluded but ulcers of the leg which extended into the foot were included. Amputation was performed in all but two patients, due to pain, bleeding or tissue necrosis. RESULTS: The etiology was multifactorial. The mean duration of the ulcers was 36 years including venous ulcers, extensive scarring of the leg secondary to infection, injury or burns. One ulcer was secondary to a snake bite. The remainder, usually in the upper part of the leg, had repeated episodes of blunt trauma or knife wounds, which were also complicated by infections which failed to heal or, if they healed, regularly recurred. Although arterial insufficiency was not primary in any patient, most were of advanced age and it may have been an element in some patients. Despite infection, osteomyelitis was present in only one patient. The essential features were bone destruction, soft tissue mass and periosteal reaction. The bone destruction was visible on the radiographs in all but one case. The soft tissue masses varied in size but in general were very large. The periosteal reaction varied in type but most commonly was lamellated. The classic undulating solid periosteal reaction of venous stasis was only occasionally present. The periosteal reaction was nonspecific in the majority of cases and did not aid in the diagnosis or etiology. MRI and CT studies were performed in six patients. These were helpful in defining the extent of bone destruction and periosteal reaction but were not essential in management. CONCLUSION: Chronic ulcer present for decades that then undergoes malignant change is a disease of developing countries where patients only consult physicians when they have developed complications such as pain, bleeding or tissue necrosis. Chronic ulcers may require to be biopsied at regular intervals as malignant change in these ulcers is directly related to their duration.
Assuntos
Cicatriz/complicações , Úlcera da Perna/complicações , Neoplasias de Tecidos Moles/complicações , Idoso , Idoso de 80 Anos ou mais , Doença Crônica , Cicatriz/patologia , Feminino , Humanos , Úlcera da Perna/patologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Neoplasias de Tecidos Moles/patologiaRESUMO
Mazabraud's syndrome, though uncommon, is reported increasingly frequently. It represents an entity readily recognisable radiologically on MR imaging. Awareness of the syndrome, particularly when the myxoma is solitary, can prevent misdiagnosis of intramuscular myxomas (especially when large) as malignant mesenchymal tumors containing myxoid tissue. We review the 34 cases previously reported in the literature and include a recent case from our center.