Urachal cyst in a bitch

Background: The urachus is a tubular structure continuous with the urinary bladder and the allantois in foetal mammals.It serves as a communication between these two structures. At birth, it loses its function and undergoes atrophy by fibrousproliferation within the lumen. When this atrophy process fails at some point, congenital anomalies of the urachus occur.These anomalies are rare in animals, and to our knowledge, the urachal cyst has not yet been described in dogs. The presentwork is unique in that it reports a case of this congenital defect in a dog. Our aim is to increase awareness and to discussthe clinical presentation, the imaging techniques used, and the final diagnosis of this anomaly.Case: A 3-year-old bitch Pit Bull was presented for veterinary assistance to investigate recurrent pseudopregnancy and anirregular estrous cycle. The animal presented in good bodily condition, and the white blood count and clinical biochemistrywere normal. At ultrasound, 2 tubular structures, filled by an echogenic fluid mimicking uterine topography, were foundextending through the umbilical and hypogastric regions. No alterations in structure, echogenicity or echotexture of theother organs were observed, including the ovaries and uterus. On exploratory laparotomy, a cystic structure was found,with 2 segments: the larger one was on the left side, attached to the apex of the bladder by its caudal portion; the otherwas on the right side, attached to the spleen by its cranial portion and to the apex of the bladder by its caudal portion inconnection with the left segment. The ovaries, uterus and uterine horns showed no macroscopic alterations. The structurewas removed, and after analysis (macroscopic morphology, wall histopathology and biochemistry of the contained fluid),it was...(AU)

Urachal cyst in a bitch

Background: The urachus is a tubular structure continuous with the urinary bladder and the allantois in foetal mammals.It serves as a communication between these two structures. At birth, it loses its function and undergoes atrophy by fibrousproliferation within the lumen. When this atrophy process fails at some point, congenital anomalies of the urachus occur.These anomalies are rare in animals, and to our knowledge, the urachal cyst has not yet been described in dogs. The presentwork is unique in that it reports a case of this congenital defect in a dog. Our aim is to increase awareness and to discussthe clinical presentation, the imaging techniques used, and the final diagnosis of this anomaly.Case: A 3-year-old bitch Pit Bull was presented for veterinary assistance to investigate recurrent pseudopregnancy and anirregular estrous cycle. The animal presented in good bodily condition, and the white blood count and clinical biochemistrywere normal. At ultrasound, 2 tubular structures, filled by an echogenic fluid mimicking uterine topography, were foundextending through the umbilical and hypogastric regions. No alterations in structure, echogenicity or echotexture of theother organs were observed, including the ovaries and uterus. On exploratory laparotomy, a cystic structure was found,with 2 segments: the larger one was on the left side, attached to the apex of the bladder by its caudal portion; the otherwas on the right side, attached to the spleen by its cranial portion and to the apex of the bladder by its caudal portion inconnection with the left segment. The ovaries, uterus and uterine horns showed no macroscopic alterations. The structurewas removed, and after analysis (macroscopic morphology, wall histopathology and biochemistry of the contained fluid),it was...

Uraco: anomalias del desarrollo, caracteristicas anatomicas y presentacion de dos casos

Urachal anomalies are infrequent, especially in adult patients, nevertheless their presentation must be well known. We present two cases with complicated urachal anomalies: a vesicourachal diverticulum and a urachal cyst. We will discuss their embriologic and anatomic characteristics, as well as their complications.

Las anomalías uracales son poco frecuentes especialmente en adultos, sin embargo, su forma de manifestarse debe conocerse. Presentamos dos casos de anomalías uracales complicadas: un divertículo y un quiste uracal. Se discuten las características embriológicas, ana-tómicas y complicaciones.

Úraco persistente: relato de caso / Persistent urachus: case report

O úraco é uma estrutura fetal que conecta a bexiga à cicatriz umbilical, persistindo em raras ocasiões. Os poretadores esta entidade podem, ocasionalmente, apresentar sintomas. A persistência do úraco pode ser classificada em congênita ou adquirida. Nesta fecha normalmente, podendo recanalizar após o nascimento, e constitui um dos cinco tipos de anormalidades do úraco: úradco persistente, seio umbilical de úraco, divertículo vésico-uracal, cisto de úraco e seios alternantes de úraco. Os sintomas podem variar com o tipo de alteração encontrada ou a presença de infecção concomitante. Métodos de imagem podem ser úteis e o tratamento depende do tipo ed doença que envolve o úraco persistente. Com o objetivo de relatar a ocorrência de úraco persistente em uma paciente adulta, ressaltando a importância diagnóstica, descreve-se o caso de uma mulher de 28 anos com abaulamento na região umbilical, de consistência fibro-elástica, indolor à palpação. O exame ultrassonográfico detectou cisto subumbilical. Foi submetida a tratamento cirúrgico com evidência de cisto vesical. A paciente evoluiu sem intercorrências no pós-operatório. O exame histopatológico foi compatível com um cordão fibro-muscular com camada interna de epitélio transicional, camada média de tecido conectivo e camada externa muscular, sendo o cisto epidérmico

Quiste y tumor del uraco en un mismo paciente / Urachus cyts and tumor in the same patients

Se presenta un paciente masculino de 18 años en el que coincidían dos afecciones tumorales relacionadas con la persistencia del uraco: un quiste y un adenocarcinoma mucoproductor. Justifican su publicación la poca frecuencia de ambas afecciones y la coincidencia en un mismo paciente, así como el hecho de no haber encontrado otro caso similar en la literatura revisada