Diagnostic ultrasound ( PDFDrive )

CHAPTER 18 Organ Transplantation 671
A
B
C
FIG. 18.55 Renal Transplant Subcapsular Hematoma Secondary to Biopsy. (A) Sagittal sonogram shows acute hematoma appearing as
solid heterogeneous structure. (B) After 1 week, cystic regions have developed within the hematoma. (C) After 1 month, hematoma has liqueied
and is larger because of a hyperosmolar effect. Arrows mark the junction of the renal cortex and hematoma.
A B C
D
E
F
FIG. 18.56 Hematomas in Three Patients. Patient 1: (A) Transverse sonogram shows an intraparenchymal hematoma appearing as an anechoic
cyst with mildly irregular walls (arrow). (B) Eight months later, the cyst has resolved. Patient 2: (C) Sagittal sonogram shows a hypoechoic solidappearing
mass (arrows) abutting the upper pole of the transplant kidney (K). Patient 3: (D)-(F) Postoperative perirenal hematoma. (D) Sagittal
sonogram shows hematoma 1 day after surgery, appearing as a solid echogenic heterogeneous mass. (E) Four weeks later, hematoma has begun
to liquefy, with interspersed solid components. (F) Six weeks later, hematoma is almost completely liqueied; arrows mark the junction of the
hematoma and renal cortex.