Open AccessHISTOPATHOLOGICAL STUDY OF CONGENITAL CYSTIC KIDNEYS WITH SPECIAL REFERENCE TO THE MULTICYSTIC, DYSPLASTIC TYPE
Author(s) -
Okayasu Isao,
Kajita Akira
Publication year - 1978
Publication title -
acta patholigica japonica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 74
ISSN - 0001-6632
DOI - 10.1111/j.1440-1827.1978.tb01266.x
Subject(s) - pathology , medicine , anatomy , autopsy , adipose tissue , extramedullary hematopoiesis , biology , haematopoiesis , stem cell , genetics , endocrinology
Ten autopsy cases of congenital cystic kidneys were studied by histopathological examination. Eight cases with dysplastic type revealed immature mesoderm, cartilage, localized tight fibrous tissue, hemangiomatous lesion consisting of arterlo‐capillary‐venous elements, extramedullary hematopoiesis, primitive lymph nodes, adipose tissue, and abundant neural tissue in the kidney as well as cystic lesions. These findings strongly suggest that congenital cystic kidneys of dysplastic type are derived from hamartoma or hamartomatous changes chiefly consisting of mesodermal tissue, most of which corresponds to tissue anomaly and is very close to the aberrant form of Wilms’tumor. The presence of focal fibrosis and lymphoid cell infiltration forming focal renal tissue destruction suggest local disturbance of tissue dmerentiation due to some causal elements. As common feature of this type, it is revealed that the babies show lower weights for their fetal ages and die shortly after birth or are delivered as still birth due to hypoplasia and atelectasis of the pulmonary tissue.