Background: Testicular torsion is a rare condition in canines, affecting any animal, regardless of age and racial predisposition. The possible cause, when talking about young dogs, is often unreliable, and can be associated with traumatic processes or excessive physical activity. Dogs with spermatic cord twist usually show signs of acute and sudden pain in one of the testicles that can be propagated to the abdomen; besides edema, heat and scrotal flush. The absence of blood flow toward the affected testicle can be observed, however, the definitive diagnosis can only be confirmed through a surgical procedure or necropsy. This situation is considered a medical emergency that requires surgical intervention for resolutionand has treatment of choice bilateral orchiectomy. The objective of this study was to report the case of a testicular torsion inside the scrotal pouch of a young dog.Case: A 6-month-old male Poodle dog, weighing 6.40 kg, was attended at the Metropolitan Veterinary Polyclinic, located in the municipality of Caucaia, Ceará, Brazil. During anamnesis it was reported by the owner of the animal an suddenly increase in volume of the scrotal pouch and right testicle. The physical examination observed normal mucous membranes,lymphadenopathy, capillary refill time of 2 s, temperature of 39.2°C, heart rate of 72 beats per minute and 68 breaths per minute. Hematologic test was requested, creatinine, dosage of ALT and ultrasound as complementary exams. The result of hemogram presented thrombocytopenia (150,000/mm3) and the presence of giant platelets. Besides, a biochemical series presented no alterations. On the Doppler ultrasound, the right testicle proved to show loss of normal structure, enlarged scrotum, hyperechoic epididymal region with adjacent liquid and absence of local vascularization. Pre-scrotal orchiectomy was performed and an enlarged right testicle was observed with blackened coloration and torsion of spermatic cord, that, possibly resulted in ischemia and testicular necrosis. On that occasion, the testicle was displaced to the incision line and maintained until the previous incision in the tunica albuginea, spermatic fascia and tunica vaginalis, parietal and visceral, in this order. After the identification of the torsioned spermatic cord, a ligature was made in order to remove testicle. The process was accomplished in both testicles. The contralateral gonad was found without alterations. The patient returnedafter fifteen days of surgical procedure for evaluation and presented evident improvement of overall clinical overview and surgery recuperation.Discussion: In spite of the testicular torsion be more associated to cases of senile and criptorquid animals, the present overview occurred in a testicle located in the interior of the scrotal sac in an extremely young animal. This can be related to a rupture of scrotal ligament, due to trauma or excessive physical effort, which fits overall overview of the patient in evidence. This results as presented in this report, in venous heart attack with testicle and epidimo becoming enlarged, congestioned with necrosis points. The rapid establishment of therapeutical surgery of orquiectomy can avoid the patients’ instability and evolution of the overall clinical overview. The rarity in literature of the reports of testicle torsion at the clinic of small animals demonstrated the importance, need for further investigation and previous knowledge regarding the origin of the abnormality. The ultrasound and surgical treatment of orquiectomy demonstrated an alternative capable and efficient to produce a favorable prognostic of this report.Keywords: testicular dilatation, vascular rupture, ischemia, necrosis, orchiectomy.

RESUMO.O complexo Lúpus Eritematoso (LE) é constituído por um conjunto de dermatopatias autoimunes que pode se manifestar em duas apresentações clinicas principais: o Lúpus Eritematoso Sistêmico (LES) e o Lúpus Eritematoso Discóide (LED). O diagnóstico clínico do LED muitas vezes é um desafio, devido à variedade de sintomas que pode ocorrer tanto no lúpus, como em outras patologias dermatológicas, fato este que interfere na rapidez do diagnóstico e consequentemente no tratamento e melhora do paciente. Este trabalho tem como objetivo relatar a importância do exame histopatológico no diagnóstico definitivo para o tratamento e prognóstico favorável de paciente canino, poodle com LED. Foi atendido na Policlínica veterinária metropolitana -HVM, um cão da raça poodle, com lesão em região do focinho tendo passado por tratamentos anteriores sem resultado aparente, foram feitos exames laboratoriais e citológicos para que fossem descartadas outras dermatopatias. Após resultado inconclusivo na citologia, foi solicitado o histopatológico, para definição do diagnóstico exato e exclusão de outras dermatopatias. O histopatológico confirmou o diagnóstico de Lúpus Eritematoso Discóide. Foi instituído tratamento com corticosteroides na dose de 1,0mg/kg, vitaminas antioxidantes e protetor solar. Após 10 dias houve o aumento da dose para 2,5mg/kg, que é a dose imunossupressora. O animal apresentou resposta com diminuição da região crostosa da lesão em plano nasal.Palavras chave: dermatopatias, doença crônica, poodle. Diagnosis and treatment of canine discoid lupus erythematosus: Case reportABSTRACT. The Lupus Erythematosus immune complex disease (LE) consists of a set of autoimmune dermatopathies that can manifest in two main clinical presentations: Systemic Lupus Erythematosus (SLE) and Discoid Lupus Erythematosus (DLE). The clinical diagnosis of DLE can be challenging, due to the variety of symptoms that can occur both in lupus and in other dermatological conditions, which interferes with the early diagnosis and consequently a delay in the treatment and improvement of the patient. This study aims to report the importance of histopathological examination in the definitive diagnosis for treatment and favorable prognosis of canine poodle with DLE. A poodle dog was attended at the Metropolitan Veterinary Polyclinic -HVM, presenting lesion in nasal area with previous treatments and no apparent improvment of the lesion. Laboratory and cytological exams were done to exclude other skin diseases. After an inconclusive result in the cytology, the histopathological examination was requested, to

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