RESUMO
Epididymal lithiasis (EL) histopathology is described using light and electronic microscopy in roosters (Gallus gallus domesticus) naturally affected by EL in Minas Gerais, Brazil. The histologic and morphological changes by EL in roosters was performed regarding cellular and subcellular details through light and electron microscopy. Efferent ductules epithelium lysosomal increase in size and numbers, membrane rupture, cellular vacuolation, ciliary loss, basal membrane degeneration, inflammatory reaction with mononuclear infiltrations, edema, epithelial and vascular endothelium losses were described. All industrial and freerange chickens showed EL in varying degrees in the efferent ductules (ED). However, ED altered areas did not correlate with the presence of luminal stones. Non-ciliated ED epithelium cells presented several atypically large lysosomes. Plicae loss and basal vacuoles were observed in the epithelium of dilated regions. Cellular cilia loss and apical cytoplasmic membrane rupture resulted in leakage of the cytoplasmic contents to the ED lumen, and ED epithelium desquamation occurred with or without lesion to the basal membrane. Basal membrane alterations were associated with profound sub-epithelial connective tissue damage. Aggregations of desquamated epithelium and spermatozoa were seen in the lumen of ED and compact aggregates were considered the basis for calculi formation. The widespread occurrence and high severity of EL lesions are indicative of the importance of EL as a cause of infertility in male chickens.(AU)
Assuntos
Animais , Galinhas/anatomia & histologia , Galinhas/imunologia , Litíase/classificação , HistologiaRESUMO
Introdução: Nefrolitíase é uma doença multifatorial e tem relação com desordens genéticas e fatores ambientais. Cálculos renais são mais comuns em adultos e são associados com várias desordens metabólicas e anatômicas. As principais anormalidades anatômicas como obstrução da junção ureteropélvica, rim em ferradura, ureter duplicado completa ou incompletamente, pelve bífida e rim esponja medular são conhecidas como responsáveis pela formação dos cálculos. O objetivo deste estudo é avaliar alterações anatômicas em pacientes com nefrolitíase em nossa região. Métodos: estudo retrospectivo em 1.378 pacientes com evidência de formação recente de cálculos renais. investigação laboratorial e análise disponibilidade. Técnicas de imagens renais incluíram pelo menos ultrassonografia renal e urografia excretora. Resultados: 1.378 pacientes com nefrolitíase foram atendidos, dentre os quais somente 367 (26,5%) foram submetidos à investigação anatômica e 132 (36,0%) tiveram pelo menos uma alteração anatômica. a idade média dos pacientes investigados foi de 36,8 +- 4,3 anos e 198 (54,5%) eram do sexo feminino. As alterações anatômicas mais frequentemente encontradas foram cisto renal, ureter duplicado completa ou incompletamente e obstrução da junção ureteropélvica. Conclusões: Alterações anatômicas foram encontradas em 36% dos pacientes investigados. Cisto renal, duplicação ureteral e obstrução da junção ureteropélvica foram alterações anatômicas mais comuns neste grupo.
Introduction: Nephrolithiasis is a multifactorial disease and is related to genetic disorders and environmental factors. Gallstones are more common in adults and are associated with various anatomical and metabolic disorders. The major anatomical abnormalities such as ureteropelvic junction obstruction, horseshoe kidney, ureter duplicated completely or incompletely, pelvis bifida and medullary sponge kidney are known to be responsible for gallstone formation. The aim of this study is to assess anatomical changes in patients with nephrolithiasis in our region. Methods: A retrospective study of 1378 patients with evidence of recent formation of kidney stones. laboratory research and analysis available. Imaging techniques included renal ultrasonography at least kidney and excretory urography. Results: 1378 patients with nephrolithiasis were treated, of whom only 367 (26.5%) underwent anatomical study and 132 (36.0%) had at least one anatomic change. the average age of patients studied was 36.8 + - 4.3 years and 198 (54.5%) were female. Anatomical abnormalities were most frequently encountered renal cyst, completely or incompletely duplicated ureter and ureteropelvic junction obstruction. Conclusions: Anatomical changes were found in 36% of the cases. Renal cyst, ureteral duplication and ureteropelvic junction obstruction were the most common anatomical changes in this group.