WALTER BELDA JUNIOR
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Dermatologia, Faculdade de Medicina - Docente
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/50 - Laboratório de Patologia das Moléstias Infecciosas, Hospital das Clínicas, Faculdade de Medicina
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/50 - Laboratório de Patologia das Moléstias Infecciosas, Hospital das Clínicas, Faculdade de Medicina
19 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 19
- Case Report: Treatment of Chromoblastomycosis with Combinations including Acitretin: A Report of Two Cases(2020) JR, Walter Belda; CRIADO, Paulo Ricardo; PASSERO, Luiz Felipe DominguesChromoblastomycosis is a cutaneous fungal infection caused by dematiaceous fungi that belong to the order Chaetothyriales and family Herpotrichiellaceae. This infection is prevalent in tropical and subtropical areas and has been designated as a neglected tropical disease according to the WHO. Chromoblastomycosis infection is difficult to treat, and there are limited therapeutic options, making urgent the characterization of new medicines or approaches to treat such infection. In the present case report, two patients with extensive chromoblastomycosis lesions were treated with the combination of itraconazole, acitretin, and imiquimod. In the fourth month of treatment, both patients showed improvement of verrucous plates, suggesting that acitretin combined with drugs already used in chromoblastomycosis therapy can decrease the time of treatment, improving patient's quality of life.
article 8 Citação(ões) na Scopus Dermatitis herpetiformis Relevance of the physical examination to diagnosis suspicion(2012) CRIADO, Paulo Ricardo; CRIADO, Roberta Fachini Jardim; AOKI, Valeria; BELDA JR., Walter; HALPERN, Ilana; LANDMAN, Gilles; VASCONCELLOS, Cidia- Axillary papules: an uncommon location of lichen nitidus(2021) BELDA JUNIOR, Walter; CRIADO, Paulo Ricardo; CHIACCHIO, Nilton Gioia Di
- Cutaneous New World Leishmaniasis on a Port-wine stain birthmark(2014) CRIADO, Paulo Ricardo; VALENTE, Neusa Sakai; NODA, Aliene; BELDA JUNIOR, WalterWe present an interesting case report of two sarcoid-like lesions on a port-wine stain (PWS) birthmark in a Brazilian patient which on investigation proved to be cutaneous leishmaniasis.
- Tungiasis under dermoscopy: in vivo and ex vivo examination of the cutaneous infestation due to Tunga penetrans(2013) CRIADO, Paulo Ricardo; LANDMAN, Gilles; REIS, Vitor Manoel Silva dos; BELDA JUNIOR, WalterThe female flea Tunga penetrans is responsible for a cutaneous parasitosis known as Tungiasis. We report the clinical case of a 12 year-old Caucasian boy who sought treatment in a dermatological private office due to a painful lesion in the plantar area and whose dermoscopic examination, without skin contact, allowed the visualization of parasite's movement inside the skin. The diagnosis of tungiasis is clinical, but it can be aided by in vivo and ex vivo dermoscopic examination of the lesion.
- Atypical clinical presentation of an Arthroderma gypseum infection in a renal transplant recipient(2020) BELDA JUNIOR, Walter; CRIADO, Paulo RicardoDermatophytes are known as a common cause of superficial mycosis, but atypical csentations in immunosuppressed patients make the diagnosis more challenging. Here, we report a case of a 39-year-old patient, a renal transplant recipient from a living donor, who presented with atypical cutaneous lesions of lower extremities caused by Arthroderma gypseum (Nannizzia gypsea). four months after receiving a renal transplant. It is important to highlight the importance of the early detection of fungal infections in immunosuppressed patients. Clinicians should have a high degree of suspicion for the early detection and treatment of the cases.
- First report of cutaneous mycetoma by Paecilomyces variotii and the successful treatment with combined itraconazole and terbinafine along with resection surgeries(2021) CRIADO, Paulo Ricardo; BELDA JUNIOR, Walter; MATTA, Vania Lucia Ribeiro daMycetoma is a progressively mutilating infectious disease of the subcutaneous tissue that affects the skin and deep structures, which is poorly responsive to chemotherapy. Here, we report a skin mycetoma caused by Paecilomyces variotii, an uncommon fungus of human infections, and the therapeutic approach that resulted in a complete cure of the patient.
article 34 Citação(ões) na Scopus Bedbugs (Cimicidae infestation): the worldwide renaissance of an old partner of human kind(2011) CRIADO, Paulo Ricardo; BELDA JUNIOR, Walter; CRIADO, Roberta Fachini Jardim; SILVA, Roberta Vasconcelos e; VASCONCELLOS, CidiaBedbugs have been known as a human parasite for thousands of years, but scientific studies about this insect are recent and limited. Cimex lectularius, the common bedbug, was a well-known parasite in human dwellings until the end of the Second World War. Nowadays, bedbugs are considered uncommon in the industrialized world. Anecdotal reports suggest that bedbugs are getting more common in the United States, Canada, and United Kingdom. In Brazil, there are few reports about bedbug infestations in the literature. The aim of this article was to alert physicians, especially in Brazil, about this ectoparasitosis, including aspects of the bedbug biology, their parasitism in human host, treatment and prophylaxis.- Successful treatment of chromoblastomycosis caused by Fonsecaea pedrosoi using imiquimod(2020) BELDA JR., Walter; CRIADO, Paulo Ricardo; PASSERO, Luiz Felipe DominguesChromoblastomycosis (CBM) is a fungal infection caused by fungi belonging to the order Chaetothyriales, and caused mainly by Fonsecaea pedrosoi. The classic treatment, based on itraconazole and/or terbinafine as well as physical approaches, is considered complex and ineffective due to the high rate of relapses. Thus, new strategies are needed to manage CBM; in this regard, the present work reports the evolution of lesions in patients successfully treated with imiquimod. Of note, classic treatment was not effective in healing the lesions of two of them, but single topical treatment with imiquimod healed the lesions.
- In situ immune response in human dermatophytosis: possible role of Langerhans cells (CD1a+) as a risk factor for dermatophyte infection(2019) REIS, Ana Paula Carvalho; CORREIA, Franciele Fernandes; JESUS, Thais Martins; PAGLIARI, Carla; SAKAI-VALENTE, Neusa Y.; BELDA JUNIOR, Walter; CRIADO, Paulo Ricardo; BENARD, Gil; SOUSA, Maria Gloria TeixeiraDermatophytosis is a cutaneous mycosis caused by a plethora of keratinophilic fungi, but Trichophyton rubrum is the most common etiological agent. Despite its high prevalence worldwide, little is known about the host defense mechanisms in this infection, particularly the in situ immune response. Using an immunohistochemistry approach, we investigated the density of CD1a+, factor XIIIa+ and CD68+ cells in the skin of dermatophytosis patients. Langerhans cells (CD1a+ cells) were significantly decreased in the epidermis of patients, both in affected and unaffected areas. In the dermis, however, no differences in the density of macrophages (CD68+ cells) and dermal dendrocytes (factor XIIIa+ cells) were observed. These results suggest that the decreased number of Langerhans cells may be a risk factor for development of dermatophytosis.