A case of metastatic choroidal tumor simulating a choroidal melanoma

• Published in: Japanese journal of ophthalmology Vol. 55; no. 3; pp. 312 - 314
• Main Authors: Arima, Mitsuru, Yoshikawa, Hiroshi, Kagimoto, Tadahisa, Kohno, Ri-ichiro, Ishibashi, Tatsuro
• Format: Journal Article
• Language: English
• Published: Tokyo Springer Japan 01.05.2011; Springer Nature B.V
• Subjects: Accumulation; Adenocarcinoma - diagnostic imaging; Adenocarcinoma - secondary; Adult; Angiography; Case reports; Cell Proliferation; Choroid Neoplasms - diagnostic imaging; Choroid Neoplasms - secondary; Computed tomography; Diagnosis, Differential; Eye Enucleation; Fatal Outcome; Fluorescein Angiography; Gadolinium DTPA; Humans; Indocyanine Green; Iofetamine; Lesions; Letter; Lung cancer; Lung Neoplasms - diagnostic imaging; Lung Neoplasms - pathology; Magnetic Resonance Imaging; Male; Medical imaging; Medicine; Medicine & Public Health; Melanocytes - pathology; Melanoma; Melanoma - diagnosis; Melanoma - diagnostic imaging; Metastases; Metastasis; Ophthalmology; Photon emission; Photons; Retinal detachment; Single photon emission computed tomography; Skin cancer; Tomography; Tomography, Emission-Computed, Single-Photon; Tomography, X-Ray Computed; Tumors; Weapons; I-IMP SPECT; Malignant melanoma; Choroidal metastasis
• ISSN: 0021-5155; 1613-2246; 1613-2246
• DOI: 10.1007/s10384-011-0015-5

Magnetic resonance imaging showed the intraocular lesion with high intensity on T1-weighted images and with low intensity on T2-weighted images. N-isopropyl-p-[123I]-iodoamphetamine single photon emission computed tomography (123I-IMP SPECT) showed intense accumulation in the left ocular area in the 24-h delayed images (Fig. 1c). [...]we diagnosed the intraocular lesion as a malignant choroidal melanoma. [See PDF for image] Fig. 1 a The pigmented choroidal lesion (white arrowhead) was surrounded by retinal detachment (white arrows). b Indocyanine green angiography showed hypofluorescence in all phases (red arrows). cN-Isopropyl-p-[123I]-iodoamphetamine single photon emission computed tomography showed intense accumulation in the affected area 24 h after injection (red arrowhead) A cross section of the enucleated eye showed a black choroidal lesion with small cord-like white areas (Fig. 2a).