Pathology Image Detail

Caption	This is a 40x image.
Description	ear skin nerve sheath tumor
Age at Necropsy	808 days
Notes	This is a homogeneous mass of spindle shaped cells surrounding the pinna of a 808 day old female SJL/J mouse. The cells form whorls and fasicles and appear to be streaming off nerves. This is most likely a nerve sheath tumor although several immunohistochemical markers should be used to confirm the diagnosis. These types of neoplasms arise on the ear and tail skin of mice sporadically and while they often look similar anatomically, immunohistochemical patterns are often quite different.
Contributor	Sundberg J (J:122261)
Pathologist	Sundberg J (J:122261)