Case report: Intracoelomic neoplastic mass of undetermined origin in an Asia minor spur-thighed tortoise (Testudo graeca ibera)

This article describes the diagnostic, treatment and attempted characterization of a neoplasia of undetermined origin in a Asia minor spur-thighed tortoise. A 21-year-old male Asia minor spur-thighed tortoise (Testudo graeca ibera) was admitted for a 4-month history of diarrhea, and a 2-month history of anorexia and lethargy. Physical examination revealed a firm midcoelomic mass in the right prefemoral fossa. Blood biochemistry indicated hypocalcemia and mild elevation of aspartate aminotransferase. Supportive care was administered in the form of heating, baths, and calcium injections. Ultrasound examination of the coelomic cavity revealed a 6-cm diameter, highly vascularized mass with liver-like echogenicity. Neoplasia was suspected, and endoscopy was performed, revealing a brown circumscribed mass with smooth edges. Surgical removal of the mass was evaluated by CT scan and achieved via a plastrotomy; however, the patient died 1 day post-surgery. The mass was located on the dorsal right side of the coelomic cavity in the anatomic location of the right testicle. Histopathology revealed neoplastic cells organized in packets supported by fibrous septa. Neoplastic cells showed moderate and inconsistent positive immunohistochemical labeling for S100 and NSE, and negative immunohistochemical labeling for pan-cytokeratin, vimentin, CD3, CD79a, chromogranin A, and synaptophysin. The prominent histological and anatomical characteristics of the mass indicated a possible testicular or neuroendocrine (e.g., adrenal gland) origin. Due to inconclusive immunohistochemical profiles and poorly differentiated neoplastic cells, only a final diagnosis of intracoelomic malignant tumor of undetermined origin could be established. This case underscores the difficulties encountered in achieving definitive diagnoses of neoplastic diseases in reptile medicine

Découverte d’un nouvel individu de Bois de senteur blanc, Ruizia cordata Cav. dans le Nord de l’île de La Réunion et bilan des connaissances sur l’état de conservation de l’espèce (Malvales, Malvaceae, Dombeyoideae)

Abstract : Ruizia cordata Cav., a native species of Réunion Island, is critically endangered as 4 individuals are known to be left in the wild at the dawn of 2015. Today, the success of ex situ programs initiated in the past 30 years is undeniable, ensuring available genetic strains conservation for the generations to come. The finding of a well-shaped new individual in February 2015 in the North coastal cliffs of the island has made a new genetic strain available for ex situ collections. As such, the perspective of discovering other natural individuals still stands as a hope for the long term conservation of R. cordata. Résumé : Ruizia cordata Cav. est en danger critique d’extinction, seulement 4 individus naturels connus et encore en vie sont répertoriés début 2015 à La Réunion. L'introductionex situde R. cordata reste un succès indiscutable, elle assure la conservation à long terme des souches génétiques actuelles. La découverte d’un nouvel individu mâle en bon état en février 2015 sur les falaises littorales du Nord de l’île apporte un espoir pour l’avenir du taxon, avec une nouvelle souche génétique à intégrer dans les efforts de multiplication et la perspective restaurée de trouver de nouvelles stations naturelles.Keywords : habitat lost, hybridisation, endemism, genetic isolation, insular ecosystems.Mots clés : perte d'habitat, hybridation, endémisme, isolation génétique, écosystèmes insulaires

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