Computerized Tomography of Malignant Melanomas of the Choroid

Alsbirk, K. E.; Halaburt, H.

doi:10.1111/j.1755-3768.1983.tb01496.x

Cited by 4 publications

(5 citation statements)

References 15 publications

(7 reference statements)

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“…It is difficult to distinguish between melanoma and a retinal detachment with a CT-scan due to their almost identical CT-numbers (Alsbirk & Halaburt 1983). Clinical evaluation of an eye habouring a melanoma frequently discloses a secondary retinal detakhment.…”

Section: Discussionmentioning

confidence: 99%

“…The use of CT-scan has been helpful in solving the diagnostic problems associated with a choroidal melanoma (Guthoff et a1 1981), Alsbirk & Halaburt 1983). CT-scan is a useful method for screening all ocular tumours and especially uveal melanomas (de Keizer et a1 1986).…”

Section: Discussionmentioning

confidence: 99%

“…To diagnose intraorbital and intraocular disorders, CT-scans have been used extensively since 1974 (Guthoff et al 1981). Uveal melanoma is identified as highly vascularized areas, often with contrast enhancement (Alsbirk & Halaburt 1983). A characteristic pattern of perfusion on dynamic CT-scan has been described (Heller 1982, Mafee et a1 1985.…”

mentioning

confidence: 99%

“…Assessment of epi-and extrascleral tumour invasion is still a problem. Secondary retinal detachment can simulate uveal melanoma on the CT-scan (Alsbirk & Halaburt 1983), probably due to the transudation of a proteinrich subretinal fluid. However, CT-scan is the best way to depict the extent of extrabulbar melanoma growth.…”

mentioning

confidence: 99%

“…However, CT-scan is the best way to depict the extent of extrabulbar melanoma growth. Secondary retinal detachment can simulate uveal melanoma on the CT-scan (Alsbirk & Halaburt 1983), probably due to the transudation of a proteinrich subretinal fluid. The size of the tumour is important in deciding the prognosis of a melanoma (Jensen 1982), and if an eye-saving management is considered, a correct assessment of the size of the tumour is obligatory.…”

mentioning

confidence: 99%

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Secondary retinal detachment interpreted as a part of uveal melanoma by CT‐scan

Eide

Nakstad

1987

Acta Ophthalmologica

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Four patients with histologically verified uveal melanomas were examined with computed tomography (CT) scan. Ophthalmoscopy revealed a sharply deliminated tumour surrounded by a secondary retinal detachment. The clinically calculated size of the tumours corresponded well with the histological specimens. The CT-scan indicated a greater size of the tumours. The discrepancies were due to difficulties in differentiation between the tumour tissue and the subretinal fluid which have almost identical CT-numbers. By combining axial and coronal views it was possible to distinguish the tumour from the secondary retinal detachment.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Secondary retinal detachment interpreted as a part of uveal melanoma by CT‐scan

Eide

Nakstad

1987

Acta Ophthalmologica

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Computed Tomography of Posterior Uveal Melanomas

Augsburger

Peyster

Markoe

et al. 1987

Archives of Ophthalmology

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CT-scan and intraocular tumours: detection and assessment of size and extrascleral growth of uveal melanomas

1986

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Twenty-two patients, who were suspected of an intraocular tumour, were examined with the high resolution thin slice CT-scan (1.5 or 3 mm slices). The final diagnosis in 14 cases was an uveal melanoma, and in 3 cases in which an uveal melanoma was suspected a chorioretinal haemorrhage, an exudative macular degeneration type Junius Kuhnt and an intrascleral foreign body were respectively found. In 2 cases intraocular metastases were demonstrated, and in 2 other cases malignant lymphomata. One patient had a haemangioma. In 10 of the 14 patients with uveal melanomata enucleation was performed and 4 were treated by ruthenium application. The CT-scan was compared with ultrasonographic, operative and histological findings. From the study it appears that the CT-scan is useful for screening uveal melanomas. It is however difficult to distinguish the uveal melanoma from a secondary retinal detachment; differentiation from an exudative macular degeneration was not possible. The size of the tumour was only represented correctly on the CT-scan in half the cases. CT examination fails to demonstrate or exclude epi- and extrascleral growth. The multiple metastases and the haemangioma could only be seen with difficulty on the CT-scan; the latter was however clearly visible after the injection of contrast. The foreign body could be clearly seen without contrast.

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Computerized Tomography of Malignant Melanomas of the Choroid

Cited by 4 publications

References 15 publications

Secondary retinal detachment interpreted as a part of uveal melanoma by CT‐scan

Secondary retinal detachment interpreted as a part of uveal melanoma by CT‐scan

Computed Tomography of Posterior Uveal Melanomas

CT-scan and intraocular tumours: detection and assessment of size and extrascleral growth of uveal melanomas

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