Giant splenic myelolipoma in a cat with hyperthyroidism

Case summary A 15 shorthair cat presented after having fallen down the stairs. Examination by the referring veterinarian had demonstrated tachycardia and a large abdominal mass. The cat was referred for investigations. Blood tests demonstrated hyperthyroidism. A large, poorly vascularised abdominal...

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Main Authors: Kerry E Rolph, Beatriz Vidana, Elinor Field
Format: Article
Language:English
Published: SAGE Publishing 2022-10-01
Series:Journal of Feline Medicine and Surgery Open Reports
Online Access:https://doi.org/10.1177/20551169221127889
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author Kerry E Rolph
Beatriz Vidana
Elinor Field
author_facet Kerry E Rolph
Beatriz Vidana
Elinor Field
author_sort Kerry E Rolph
collection DOAJ
description Case summary A 15 shorthair cat presented after having fallen down the stairs. Examination by the referring veterinarian had demonstrated tachycardia and a large abdominal mass. The cat was referred for investigations. Blood tests demonstrated hyperthyroidism. A large, poorly vascularised abdominal mass was identified on ultrasonography. The mass was hyperechoic compared with the normal liver; however, the origin could not be determined. Fine-needle aspirate biopsies of the mass demonstrated extramedullary haematopoiesis. Surgical exploration revealed a 12 cm × 8 cm × 8 cm pale mass arising from the spleen. Histopathology determined this was a giant splenic myelolipoma. Relevance and novel information Splenic myelolipoma is rarely reported in the domestic cat, with only five cases documented within the literature, and none of these having described giant myelolipoma. Indeed, giant myelolipomas are rarely reported in the human literature and are most commonly adrenal in origin. The pathogenesis of these masses is unclear; there have been several incidences in people with endocrine disorders, and it has been hypothesised that their occurrence may be related to endocrine stimulation. Here we report the first case of giant myelolipoma in a hyperthyroid cat.
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spelling doaj.art-ef249214ada54368b0dacc248cccc8072022-12-22T03:55:28ZengSAGE PublishingJournal of Feline Medicine and Surgery Open Reports2055-11692022-10-01810.1177/20551169221127889Giant splenic myelolipoma in a cat with hyperthyroidismKerry E Rolph0Beatriz Vidana1Elinor Field2Center for Integrative Mammalian Research, Ross University School of Veterinary Medicine, Basseterre, St Kitts, West IndiesFaculty of Health Sciences, Bristol Veterinary School, University of Bristol, Bristol, UKHighcroft Veterinary Referrals, Bristol, UKCase summary A 15 shorthair cat presented after having fallen down the stairs. Examination by the referring veterinarian had demonstrated tachycardia and a large abdominal mass. The cat was referred for investigations. Blood tests demonstrated hyperthyroidism. A large, poorly vascularised abdominal mass was identified on ultrasonography. The mass was hyperechoic compared with the normal liver; however, the origin could not be determined. Fine-needle aspirate biopsies of the mass demonstrated extramedullary haematopoiesis. Surgical exploration revealed a 12 cm × 8 cm × 8 cm pale mass arising from the spleen. Histopathology determined this was a giant splenic myelolipoma. Relevance and novel information Splenic myelolipoma is rarely reported in the domestic cat, with only five cases documented within the literature, and none of these having described giant myelolipoma. Indeed, giant myelolipomas are rarely reported in the human literature and are most commonly adrenal in origin. The pathogenesis of these masses is unclear; there have been several incidences in people with endocrine disorders, and it has been hypothesised that their occurrence may be related to endocrine stimulation. Here we report the first case of giant myelolipoma in a hyperthyroid cat.https://doi.org/10.1177/20551169221127889
spellingShingle Kerry E Rolph
Beatriz Vidana
Elinor Field
Giant splenic myelolipoma in a cat with hyperthyroidism
Journal of Feline Medicine and Surgery Open Reports
title Giant splenic myelolipoma in a cat with hyperthyroidism
title_full Giant splenic myelolipoma in a cat with hyperthyroidism
title_fullStr Giant splenic myelolipoma in a cat with hyperthyroidism
title_full_unstemmed Giant splenic myelolipoma in a cat with hyperthyroidism
title_short Giant splenic myelolipoma in a cat with hyperthyroidism
title_sort giant splenic myelolipoma in a cat with hyperthyroidism
url https://doi.org/10.1177/20551169221127889
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