Fig. 4. PMCT and necropsy images of lesions caused by the nematode Crassicauda fuelleborni or Crassicauda sp. in the male reproductive organs of Indo-Pacific finless porpoises Neophocaena phocaenoides stranded in Hong Kong waters. (A) Case 11, subadult male, heterogeneous lesion (arrowhead) with both isoattenuated and hyperattenuated content associated with the prostate (asterisk), nematode found was later identified as C. fuelleborni. (B) Case 13, adult male, homogenous hyperattenuated probable Crassicauda-related lesion in the tissues surrounding the penis (asterisk). (C) Case 6, juvenile male, isoattenuated lesion with some hypoattenuated and hyperattenuated foci associated with the right testis (arrowhead). (D) Case 6, juvenile male, the corresponding abscessed lesion at the right epididymis with nematodes later identified as Crassicauda sp.