Rubens Pontello Junior

American cutaneous leishmaniasis: epidemiological profile of patients treated in Londrina from 1998 to 2009

BACKGROUND American cutaneous leishmaniasis is a dermatozoonosis of compulsory notification with relevant morbidity. The disease is considered endemic in northern Paraná. OBJECTIVES To evaluate the clinical, laboratory and epidemiological aspects of patients with American cutaneous leishmaniasis treated at Clinics Hospital, State University of Londrina, Brazil (Paraná). METHODS This was an observational, cross-sectional, retrospective and descriptive study. The medical records of patients with American cutaneous leishmaniasis treated at the University Hospital of Londrina - Paraná, from 1998 to 2009 were evaluated. RESULTS A total of 470 patients, with prevalence of 8.72 cases / 100,000 inhabitants, participated in the study. Most patients were male, aged 21-40 years, with a single ulcerated lesion as the most common clinical presentation, located mainly in an exposed area of the body. With regard to immunological tests, the Montenegro intradermal reaction was positive in 84.4% of cases. Treatment with pentavalent antimony was well tolerated, and patient follow-up for a year occurred in 59% of cases. CONCLUSION American cutaneous leishmaniasis is still an endemic disease in the region, with a high potential for morbidity, but with a cure rate of around 95% after treatment. The use of immunological techniques facilitates the diagnosis of clinically suspicious cases.

Proliferating pilomatricoma - Case report

Proliferating pilomatricoma is proliferative, rare tumor variant of pilomatricoma. It is a benign neoplasm of hair matrix that can have potentially involve local recurrence. We report the case of a 60-year-old man who presented an asymptomatic nodule on the scalp. Histological exam demonstrated a basaloid epithelium at the periphery, filled with eosinophilic cornified material containing shadow cells. The tumor was excised and there was no evidence of recurrence one year later.

Drug-induced acne and rose pearl: similarities

Drug-induced acne is a common skin condition whose classic symptoms can be similar to a rose pearl, as in the case of a male patient presenting with this condition after excessive use of a cream containing corticosteroids.

Cutaneous schwannoma: an atypical presentation

An Bras Dermatol. 2017;92(3):433-43. Dear Editor, We report the case of a 66-year-old male patient who presented with a 10-year history of a nodular mass in the right leg region. The patient referred a gradual enlargement of the lesion, which had a quick growth in the last two years. He had arterial hypertension and hypothyroidism but no history of neurological pathologies. Dermatological examination revealed a firm mass, slightly painful to the touch, measuring approximately 7x6cm on the right leg (Figure 1). Ultrasound scan revealed a hyperechoic nodule without central vascularization, which suggested a lipoma with cystic degeneration. Macroscopic examination showed a solitary smooth and well-encapsulated yellowish-white nodule with fibroelastic consistency, measuring about 6 x 5cm (Figure 2). Microscopic examination revealed a lesion predominantly composed of fusiform cells showing both Antoni A and Antoni B areas, compatible with schwannoma (Figure 3). The patient was submitted to tumor excision. Schwannomas or neurilemomas are benign encapsulated tumors of nerve sheath origin. Although they commonly occur as solitary lesions (90%), they can be associated with several central neurological tumors (usually meningiomas, 5%), neurofibromatosis type 2 (3%), or appear as multiple lesions (schwannomatosis, 2%). Clinically, cutaneous schwannomas (CS) usually range in size from 0.25 cm to 3.00 cm and generally occur in the head and neck regions. Although they represent the commonest benign peripheral nerve sheath tumors (incidence rate of 5% in adults and 2% in children), the occurrence on the lower limbs account for 1% of all cases.1-4 Verocay first described these benign tumors derived from the myelin sheath (benign myelin sheath tumor) in 1908 as neurinomas. Later, in 1935, Stout reported on tumors arising from the nerve sheath and specifically described tumors of neuroectodermal origin. The neuroectoderm consist of Schwann cells and collagen fibers. After recognizing their schwannian derivation, Stout coined the term schwannoma.3,4 Rogerio Nabor Kondo1 Rubens Pontello Junior2 Priscila da Silva Taguti1 t Cutaneous schwannoma: an atypical presentation*

A-T flap for the reconstruction of an operative wound in the malar region

The malar region is the site of skin tumors and sometimes a primary closure is not possible after the excision of the lesion. The A-T flap is a good method f...