Granular Cell Tumour in a California Kingsnake (Lampropeltis californiae)

Diagnostic imaging and pathological findings of an abdominal mesenteric granular cell tumour in a dog

“…According to this results a Schwann cell origin was not confirmed. S‐100 negative granular cell tumours have been previously reported in veterinary medicine (Reifinger et al., 2020). A definitive explanation of this fact is beyond the aim of this study.…”

“…Granular cell tumour are usually benign. Malignant transformation can happen, but this is rare in both human and veterinary medicine (Bouayyard et al., 2020; Higgins et al., 2017; Reifinger et al., 2020). In a recent human article, a 1%–2% of malignant conversion has been described (Bouayard et al., 2020).…”

“…Ultrasound descriptions of granular cell tumours are lacking in veterinary medicine. Recently, ultrasound appearance of a celomic granular cell tumour has been described in a California kingsnake as a large mass, not associated with any organ, with cysts, and a wall of moderate echogenicity (Reifinger et al., 2020). In human literature, granular cell tumours affecting the gastrointestinal tract have been described as hypoechoic, homogenous, smooth‐edged solitary lesions that appear to originate from the submucosal layer (Barakat et al., 2018).…”