Term: post-vent region melanoma
Name: post-vent region
Synonyms: tail
Definition: Organism subdivision which is the part of the body posterior to the vent which includes the anal and caudal fins.
Ontology: Anatomy Ontology [ZFA:0001117]

Name: melanoma
Synonyms: melanosarcoma, melanosarcoma, malignant melanoma
Definition: Tumor of neurectodermal origin, usually melanocytes, showing dense deposition of melanin granules, although amelanotic melanomas have been reported. (M-8720/3).
Ontology: MPATH [MPATH:359]