Osteoma in a Blue-Fronted Amazon Parrot (<i>Amazona aestiva</i>)

Cardoso, João Felipe Rito; Levy, Marcelo Guilherme Bezerra; Liparisi, Flavia; Romão, M. A. P.

doi:10.1647/2012-010

Cited by 8 publications

(15 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The overall avian neoplasm rate in the literature analysis was 2.3% (3298/144,277 birds; Supplementary Table S1) indicating that neoplasms are rare among birds, as also suggested by others [65][66][67] . Although neoplastic diseases are not well studied among birds, the following, though rare 62,63,68 , primary bone tumours have been described: osteoma [68][69][70] , osteosarcoma 68,71 , chondroma 68 and chondrosarcoma 64,68 . It has been reported that neoplasms are frequently seen in captive birds, yet the majority of these neoplasms were benign, and all were diagnosed as lipomas 72 .…”

Section: Differential Diagnosis Based On Phylogenetic Disease Bracketmentioning

confidence: 99%

“…However, the two pathological lesions share the majority of morphological features and their multifocal appearance makes a disseminated osseous malignancy a relevant differential diagnosis. The benign features and the extreme rarity among birds makes osteoma a rather unlikely differential diagnosis 67,69,70,73 . The lack of articular proximity and the circumferential involvement of the bone make the differential diagnosis of an osteochondroma of the left fibula also highly unlikely, whereas it remains a differential diagnosis for the pathologically altered vertebrae.…”

Section: Differential Diagnosis Based On Phylogenetic Disease Bracketmentioning

confidence: 99%

See 1 more Smart Citation

A comprehensive diagnostic approach combining phylogenetic disease bracketing and CT imaging reveals osteomyelitis in a Tyrannosaurus rex

Hamm

Hampe

Schwarz

et al. 2020

Sci Rep

View full text Add to dashboard Cite

Traditional palaeontological techniques of disease characterisation are limited to the analysis of osseous fossils, requiring several lines of evidence to support diagnoses. This study presents a novel stepwise concept for comprehensive diagnosis of pathologies in fossils by computed tomography imaging for morphological assessment combined with likelihood estimation based on systematic phylogenetic disease bracketing. This approach was applied to characterise pathologies of the left fibula and fused caudal vertebrae of the non-avian dinosaur Tyrannosaurus rex. Initial morphological assessment narrowed the differential diagnosis to neoplasia or infection. Subsequent data review from phylogenetically closely related species at the clade level revealed neoplasia rates as low as 3.1% and 1.8%, while infectious-disease rates were 32.0% and 53.9% in extant dinosaurs (birds) and non-avian reptiles, respectively. Furthermore, the survey of literature revealed that within the phylogenetic disease bracket the oldest case of bone infection (osteomyelitis) was identified in the mandible of a 275-million-year-old captorhinid eureptile Labidosaurus. These findings demonstrate low probability of a neoplastic aetiology of the examined pathologies in the Tyrannosaurus rex and in turn, suggest that they correspond to multiple foci of osteomyelitis.

show abstract

Section: Differential Diagnosis Based On Phylogenetic Disease Bracketmentioning

confidence: 99%

Section: Differential Diagnosis Based On Phylogenetic Disease Bracketmentioning

confidence: 99%

A comprehensive diagnostic approach combining phylogenetic disease bracketing and CT imaging reveals osteomyelitis in a Tyrannosaurus rex

Hamm

Hampe

Schwarz

et al. 2020

Sci Rep

View full text Add to dashboard Cite

show abstract

“…In birds, the body location of osteomas has been recorded with origins in the scapula, humero-radial joint [3], kidney [6], nostrils [8], sternum [11], tarsometatarsus [14], proximal radius [17], skin [21], elbow joints [22], skull [20,27], foot cushion [27], and infraorbital arch [28]. The cutaneous bilateral location of the masses in humerus radioulna junction in this report is unusual.…”

mentioning

confidence: 78%

“…Additionally, the etiology is uncertain given that historical information such as age, breed, sex, and trauma often cannot be accurately determined [8,11]. There are two proposed mechanisms for formation of lesions of osteoma cutis, a disordered embryologic process in which normal mesenchymal cells that are destined to differentiate into osteoblasts are present in the wrong location (hamartoma); and a metaplastic process, in which normal extraskeletal mesenchymal cells are stimulated to become osteoblasts by external factors [5,13,15,31].…”

mentioning

confidence: 99%

See 1 more Smart Citation

Bilateral osteoma cutis in a Peach-Faced Lovebird (<i>Agapornis roseicollis</i>)

Pinzón-Osorio

Gómez

Álvarez-Mira

2020

The Journal of Veterinary Medical Science

View full text Add to dashboard Cite

An osteoma is an infrequent tumor documented in avian species. An adult female Peach-Faced Lovebird (Agapornis roseicollis) with a history of previous trauma was examined due to the presence of bilateral hard and yellowish-white masses in the radio-cubital humerus junction. Histopathological dermal examination revealed a non-neoplastic process of mesenchymal origin, characterized by the formation of well-differentiated trabecular bone, multiple areas of medullary bone and loose connective tissue and coagulation of the necrosis foci. Based on the histological findings and the medical history, the masses were diagnosed as bilateral secondary osteoma cutis. To our knowledge, this is the first report of this pathology with an acute course in this exotic pet bird. The previous trauma could be the initiating cause.

show abstract

Standing excision of a paranasal osteoma in a 3‐year‐old Standardbred gelding

Lean

McGarry²,

Henderson

et al. 2021

Vet Record Case Reports

View full text Add to dashboard Cite

Osteomas are an uncommon benign neoplasia in horses, which most frequently affect the paranasal sinuses. There are only 25 reported cases in the literature. Clinical signs typically associated with paranasal osteoma formation include nasal discharge, ocular and/or facial swelling and distortion. Historically, surgical excision under general anaesthesia has been the standard approach for the treatment of large osteomas, with standing surgery reserved for small masses. This case report describes standing removal of an extensive paranasal osteoma through a maxillary bone flap, without recurrence. Longterm follow up at 2 years confirmed a good cosmetic appearance and successful return to racing.

show abstract

Osteoma in a Blue-Fronted Amazon Parrot (Amazona aestiva)

Cited by 8 publications

References 13 publications

A comprehensive diagnostic approach combining phylogenetic disease bracketing and CT imaging reveals osteomyelitis in a Tyrannosaurus rex

A comprehensive diagnostic approach combining phylogenetic disease bracketing and CT imaging reveals osteomyelitis in a Tyrannosaurus rex

Bilateral osteoma cutis in a Peach-Faced Lovebird (<i>Agapornis roseicollis</i>)

Standing excision of a paranasal osteoma in a 3‐year‐old Standardbred gelding

Contact Info

Product

Resources

About