Primary Retrobulbar and Intraocular Malignant Melanoma in a Cat

Siripoonsub, Jedsada; Chankow, Katriya; Lacharoje, Sitthichok; Rungsipipat, Anudep

doi:10.14737/journal.rjvp/2016/4.2.25.29

Cited by 3 publications

(5 citation statements)

References 2 publications

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“…The iris, which gives the eye its color, is a vascular area that is situated behind the cornea layer in the anterior section of the eye. Melanomas are malignant or benign tumors of the melanoblast and the melanocyte (Siripoonsub et al, 2016). According to Payen et al (2008), melanocytic tumors can form in the skin, mucous membranes, eyes, eyelids, central nervous system, or eyes.…”

Section: Introductionmentioning

confidence: 99%

“…This can lead to secondary glaucoma. The tumor that reaches the sclera often extends to the orbit and metastasizes to distant organs by spreading to the cranial cavity via the optic nerve (Siripoonsub et al, 2016). Although tumor metastases are most common in the liver, they can also occur in the lung, kidney, spleen, lymph nodes, brain, and bone tissue (Kayes & Blacklock, 2022).…”

Section: Introductionmentioning

confidence: 99%

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Possible Unilateral Iris Melanoma in a Cat

KILIÇ,

BAŞAK,

AKGÜL

et al. 2023

Veterinary Journal of Kastamonu University

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A tumor known as feline iris melanoma has a high chance of metastasizing and is characterized by multifocal, golden yellow to brown pigmented patches in the iris. Despite the fact that cats of any age can develop this tumor, there is no breed or sex-specific susceptibility. The case material was a female Russian blue cat that was neutered at the age of 5, weighed 4.5 kg, and was taken to the surgical clinic of the faculty of veterinary medicine at the University of Siirt. According to the patient's medical history, a brown spot-like pigmented region had developed on the right eye's iris two months prior, and up until the cat was brought to the clinic, the pigmented patches in the iris grew in number and size. As a result of routine clinical examination, tonometry, haematological and biochemical examinations, uveal cysts and iris freckles with similar clinical symptoms were eliminated and it was concluded that the pathological condition was iris melanoma. In addition, it was determined that melanoma foci were involved only on the iris surface in line with the available possibilities and did not metastasise to other tissues and organs of the eye. Since the disease was in the initial stage, the general condition of the patient was good after clinical examinations and the owner of the patient did not accept enucleation, it was decided not to perform any intervention. The owner of the patient was instructed that during the follow-up phase, the foci should be checked and the patient should continue to be under supervision. When the patient was summoned back for a follow-up examination three months later, it was decided to undertake enucleation in case any potential melanoma foci or metastases had grown in other eye tissues or organs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Possible Unilateral Iris Melanoma in a Cat

KILIÇ,

BAŞAK,

AKGÜL

et al. 2023

Veterinary Journal of Kastamonu University

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“…19 FROMS, previously termed ‘pseudotumour’ is a highly invasive neoplasm that often progresses from unilateral to bilateral disease and is poorly responsive to therapy. 3,18,19,22,24–31 SCC can mimic FROMS. 22…”

Section: Introductionmentioning

confidence: 99%

“…19 FROMS, previously termed 'pseudotumour' is a highly invasive neoplasm that often progresses from unilateral to bilateral disease and is poorly responsive to therapy. 3,18,19,22,[24][25][26][27][28][29][30][31] SCC can mimic FROMS. 22 Radiography appears insensitive for the detection of orbital bone pathology.…”

Section: Introductionmentioning

confidence: 99%

Tumours involving the retrobulbar space in cats: 37 cases

Jones¹,

Cotterill

Drees

et al. 2022

Journal of Feline Medicine and Surgery

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Objectives The aim of this multicentre retrospective study was to describe the clinical presentation, imaging findings, diagnosis and outcomes of cats with retrobulbar neoplasia. Methods A total of 37 cats that were diagnosed with retrobulbar neoplasia and underwent advanced imaging were recruited from searches of the clinical records of two referral hospitals. All cats had neoplasia confirmed via cytology or histopathology. Data relating to the signalment, presentation, results of investigations, treatment and outcome were recorded. A review of imaging studies was performed where possible. Results In total, 23 cases (62%) were presented with respiratory signs. Exophthalmos was the most common ophthalmological examination finding, present in 18 cases (49%). Thirty-two cases (86%) had secondary extension of neoplasia to the retrobulbar space (most commonly from the nasal cavities), present in 20 cases (54%), of which 12 were lymphoma. In cases where contrast was administered, 28/35 (80%) had contrast-enhancing masses. Orbital extension was detected in 21 cases (57%), exophthalmos in 22 (59%), globe deformation in 12 (32%) and local lymphadenomegaly in 22 (61%). In total, 36 (97%) retrobulbar tumours were malignant. Thoracic imaging, where it was performed, was concerning for metastasis in 8/25 cases (31%), with abdominal imaging suggestive of metastasis in 5/12 (42%). The most common diagnosis was lymphoma with 19 cases (51%), with nasal lymphoma representing 12 of these, followed by carcinoma in 10 (27%). The median survival time, for cases where death was recorded, was 85 days (range 1–263 days). Conclusions and relevance To the authors’ knowledge, this is the largest study of neoplasia affecting the feline retrobulbar space. Retrobulbar tumours in cats are overwhelmingly malignant, and commonly due to secondary extension of tumours originating elsewhere. Lymphoma, particularly arising from the nasal cavities, was the most common cause. Cats presenting with signs suggestive of retrobulbar disease should be assessed for disease affecting any of the structures of the head.

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“…Los melanomas son tumores que tienen melanoblastos y melanocitos; dichos tumores pueden aparecer en la piel, cavidad oral, o también en el ojo 1 . El melanoma oral es una neoplasia altamente agresiva y frecuente que causa metástasis en los caninos 2 .…”

Section: Introductionunclassified

Melanoma uveal en un canino: un reporte de caso

Toro

Betancur

2019

Ces. Med. Vet. Zootec.

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En el presente reporte se expone el caso clínico de un canino macho Gran Danés Arlequín, el cual, presentó el ojo derecho opaco y muy rojo. En el examen oftalmológico presentó un cuadro agudo de uveítis, seguido por glaucoma y déficit visual; no reporta trauma físico o algún golpe contundente a nivel ocular. El diagnóstico definitivo fue melanoma uveal, confirmado por ecografía, citología e histopatología.

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Primary Retrobulbar and Intraocular Malignant Melanoma in a Cat

Cited by 3 publications

References 2 publications

Possible Unilateral Iris Melanoma in a Cat

Possible Unilateral Iris Melanoma in a Cat

Tumours involving the retrobulbar space in cats: 37 cases

Melanoma uveal en un canino: un reporte de caso

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