{'fraction_non_alphanumeric': 0.032753326509723645, 'fraction_numerical': 0.0040941658137154556, 'mean_word_length': 5.698630136986301, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Intra-abdominal leiomyosarcoma in a ferret (Mustela putorius Furo): histopathological and immunohistochemical characterization.

A 5 years old female ferret with an abdominal palpable mass confirmed at echo-graphic examination died during an explorative laparotomy. A single lymph-node-like nodule was found adjacent to the intestinal loops. The round mass well circumscribed, solid and white, histologically, at low magnification, appeared encapsulated and built up by a population of atypical spindle cells arranged in interwoven fascicles. The cells had high anisocytosis degree, moderate mitotic activity and prominent nucleoli. A central area of necrosis was present. To characterise the tumour immunohistochemically cytokeratin, vimentin, S-100, melan-A, vWF, desmin, actin and alpha-actin were applied. Neoplastic cells resulted positive to vimentin, actin and alpha-actin. Based on the histological and immunohistological pattern a diagnosis of leiomyosarcoma was made.