Sífilis secundaria con compromiso pulmonar / Secondary syphilis with pulmonary involvement

La sífilis es una enfermedad de transmisión sexual causada por una espiroqueta, Treponema palidum. Presentamos el caso de una mujer de 62 años de edad, que consultó por fiebre de 38°, dolor torácico en puntada de costado y lesiones pruriginosas en piel. Se realizó examen de laboratorio de sangre periférica, radiografía y tomografía de tórax. Recibió tratamiento antibiótico y fue diagnosticada como neumonía aguda de la comunidad. Debido a la respuesta parcial de los síntomas y persistencia de lesiones pruriginosas se realizó biopsia de piel que informó Treponema palidum, el cual fue confirmado con test serológico VDRL y FtA-abs positivo. La paciente recibió 4 dosis de penicilina G benzatínica con favorable evolución de las lesiones en piel y mejoría de las imágenes radiológicas.

We present the case of a 62-year-old woman who consulted for fever (38°), stabbing thoracic pain (on one side), and pruritic skin lesions. She underwent peripheral blood tests, chest X-rays and CT. Her symptoms were interpreted as severe community-acquired pneumonia. After a treatment with antibiotics, her skin lesions persisted, and other symptoms were only partially relieved. A skin biopsy was performed, which revealed Treponema pallidum. Such finding was confirmed through positive serum VDRL and FTA-ABS tests. The patient received 4 doses of benzathine penicillin G with favorable evolution of skin lesions and improvement of radiological images.

First report of Dermatophilus congolensis dermatitis in dairy cows in Shiraz, southern Iran

Skin lesions were found in two 3-4-year-old Holstein cows in a dairy farm in Shiraz. Lesions were distributed mostly around the neck, forelimbs, hindlimbs, and bilateral of midline portion and varied from nodule-like structure to patch with extensive accumulation of crust. Skin scraping samples were taken from each animal and direct smears were prepared, stained with Giemsa and observed under a light microscope. Some scabs were cultured and incubated both aerobically and anaerobically. Cultured smears were Gram stained and the morphology of isolates were studied. The diagnosis of dermatophilosis was made on the basis of clinical signs, skin lesions and morphological characteristics of the isolates. In this study, the infection could be related to insect population density during the outbreak and exposure to ticks which were observed in the animal environment. Rain scald in the region, especially in the late August and September could be a predisposing factor for flare-up of the infection. This is the first report of dermatophilosis in cattle in Shiraz, southern Iran

Microbiological aspects of diaper dermatitis and breast milk zinc

This study was conducted on 185 infants divided into two groups: Group I 75 breast fed full term infants [42 males and 33 females] and group II 60 breast fed preterm infants [33 males and 27 females] suffering from resistant diaper dermatitis, aged one month to 12 months, in addition 50 clinically free infants were selected as a control group. Bacterial growth was obtained in 117 [86.7%]. Aerobic facultative bacteria or candida were present in 56 cases [47.9%] and anaerobic bacteria only in 23 cases [19.7%] and mixed anaerobic with aerobic, facultative or yeast was present in 38 cases [32.4%]. So, colonization of candida in this study was 94 cases [80.3%]. The results recorded that the most common candida species isolated were C. albicans 67%, followed by C. tropicals, C. parapsilosis, C. macedoniensis and C. deformans 20.2%, 5.3%, 4.3% and 3.2%, respectively. The commonest strict anaerobic isolates were bacteroid fragilis [39.1%] then peptostreptococcus [30.4%], propionibacterium acnes [17.4%] and peptococcus [13.1%]. The most common aerobic facultative isolates in this study were staphylococcus aureus [41.1%], streptococcus [33.9%] especially non-hemolytic streptococcus, beta-hemolytic streptococcus, alpha-hemolytic streptococcus [14.3%, 10.7% and 8.9%], respectively, staphylococcus epidermidis [14.3%] and E. coli [10.7%]. Diagnosis of zinc deficiency must be considered in any infant with a napkin dermatitis which fails to respond to appropriate treatment

Malassezia pachydermatis e outros agentes infecciosos nas otites externas e dermatites em cäes / Malassezia pachydermatis and other infectious agents in external otitis and dermatitis in dogs

Malassezia pachydermatis (Pityrosporum canis) faz parte da microbiota da pele e quando ocorrem alteraçöes no microambiente local como aumento da umidade, da temperatura e do substrato, determinando uma elevaçäo do número de células, ocorre a transiçäo da forma comensal para o parasitismo. O objetivo deste trabalho foi determinar a prevalência da infecçäo por M. pachydermatis e outros agentes infecciosos nas otites externas e dermatites de cäes. Foram analisadas 78 amostras de cäes com otite, 36 amostras de cäes com o conduto auditivo normal e 24 com dermatite. Todas as amostras foram submetidas ao exame direto, cultivo em ágar sangue e ágar Sabouraud dextrose, acrescido de cloranfenicol e cicloheximida. Ao exame direto, 50 porcento das amostras de otite e 16,6 porcento das amostras de dermatite apresentaram numerosas células semelhante a M. pachydermatis, enquanto 83,3 porcento das amostras de ouvidos saudáveis apresentaram ausência de células com esta morfologia. M. pachydermatis foi isolada em 25 porcento das amostras do conduto auditivo normal, em 80,7 porcento das amostras de otite e em 37,5 porcento das amostras de dermatite. Foram também isolados das amostras de otite Staphylococcus intermedius, S. aureus, S. epidermidis, Pseudomonas aeruginosa, Proteus sp, Actinomyces sp, Streptococcus sp e Otodectes cynotis e das de dermatite Staphylococcus intermedius, S. aureus, S. epidermis, Microsporum canis, M. gypseum, Trychophyton sp e Demodex canis. M. pachydermatis foi o agente com maior prevalência nas otites externas e dermatites, sendo um agente oportunista que causa otite e dermatite quando há uma alteraçäo do microambiente.

Dermatitis verminosa reptante / Dermatitis cutaneous larva migrans

Se comunica un brote epidémico de Larva migrans cutánea, posterior a lluvias intensas al paso del huracán Celia, en siete estudiantes y un profesor de la Facultad de Ciencias. El diagnóstico se estableció clínicamente; se realizaron frotes sanguíneos para cuantificación de eosinófilos. Fueron tratados con albendazol a dosis convencionales y tiabendazol tópico