Kidney MP Kidney Histology Coding Rules – Text C649 (Excludes lymphoma and leukemia M9590 – 9989 and Kaposi sarcoma M9140) SINGLE TUMOR Rule H1 Code the histology documented by the physician when there is no pathology/cytology specimen or the pathology /cytology report is not available Note 1: Priority for using documents to code
Kidney Histo Kidney Histology Coding Rules – Matrix C649 (Excludes lymphoma and leukemia M9590 – 9989 and Kaposi sarcoma M9140) Rule Pathology/Cytology Specimen Histology Behavior Notes and Examples Code H11 1: This rule should only be used when the first three digits of the histology codes are identical (This is a single primary)
the kidney of the domestic animals Studies were made on sixty- nine domestic animals of seven different species, the pig being chosen as a type The tunica fibrosa of the kidney capsule in domestic animals was two-layered except in the cat, where only one layer was pres ent The outer layer of the tunica fibrosa consisted of dense col
The kidney undergoes autolysis rapidly, and kidneys from moribund animals or animals dying on test have histologic changes associated with autolysis Even specimens immersion fixed at the time of sacrifice may contain subtle to large areas of autolysis within the kidney mimicking degeneration and necrosis (Figure 8)
Histology of Normal Kidney Tissue [1575] Definition Normal kidney tissue consists of unchanged nephrons (glomeruli and tubules), vessels and intersti-
Kidney Histology Renal Block Page 2 Kidney Medullary rays: Collec*ng ducts that connect the medulla Uriniferous Tubule is the functional unit of the kidney
A B HISTOLOGICAL CLASSIFICATION OF KIDNEY TUMOURS I EPITHELIAL TUMOURS OF RENAL PARENCHYMA ADENOMA