• Brain Tumor Research and Treatment
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• v.6 no.2
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• pp.68-72
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• 2018

We report a rare case of arachnoid granulations mimicking multiple osteolytic bone lesions. A 66-year-old woman was admitted to a local clinic for a regular checkup. Upon admission, brain CT showed multiple osteolytic lesions in the occipital bone. These needed to be differentiated from multiple osteolytic bone tumor. Subsequent brain MRI revealed that the osteolytic lesions were isointense to cerebrospinal fluid, hyperintense on T2-weighted image, hypointense on T1-weighted image, and with subtle capsules around the osteolytic lesions that were visible after gadolinium injection. A bone scan revealed no radiotracer uptake. The lesions were in both the transverse sinuses and the torcular herophili. With typical radiological appearances of the lesions, the osteolytic lesions were diagnosed as multiple arachnoid granulations. No further treatment was planned. A 1-year follow-up brain CT scan revealed no change. We should consider the possibility of arachnoid granulations when multiple osteolytic lesions are observed in the occipital bone.

• Journal of Industrial and Engineering Chemistry
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• v.67
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• pp.80-91
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• 2018

Here, we engineered spheroids by using ECM mimicking nano-fragments (NFs) with fibroblasts and investigated their effect on proliferation and cell/ECM interactions. NF incorporation resulted in formation of a stable spheroid, which improved proliferation and viability of cells by assisting oxygen transport confirmed by LOX-1 staining. In addition, hypoxic and apoptotic genes were significantly downregulated in spheroids with PD-NFs. Furthermore, ECM and cell junction proteins were highly expressed. Overall, our findings suggest that incorporation of NFs within spheroids for assembly with various cell types can be an alternative approach for 3D cell culture in many applications.

• Investigative Magnetic Resonance Imaging
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• v.25 no.2
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• pp.129-134
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• 2021

The prevalence of cheek lymphoma, especially a mucosa-associated lymphoid tissue lymphoma (MALT), is very rare. Non-specific symptoms and image findings of cheek lymphoma may mimic benign entities and make it difficult to diagnose. In this case report, we present a case of MALT lymphoma of the cheek mimicking benign entities on computed tomography and magnetic resonance imaging.

• Journal of Yeungnam Medical Science
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• v.39 no.1
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• pp.53-57
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• 2022

Hepatic hemangiomas infrequently exhibit atypical imaging features, which may cause diagnostic confusion with hepatic malignancies and lead to unnecessary surgery. We report a rare case of multilocular cystic hemangioma of the liver mimicking a mucinous cystic neoplasm of the liver in a 48-year-old female, focusing on computed tomography and magnetic resonance imaging features and their differential diagnosis.

• Investigative Magnetic Resonance Imaging
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• v.26 no.1
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• pp.76-81
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• 2022

The number of women undergoing breast augmentation surgery with a prosthesis for cosmetic purposes or reconstruction after a mastectomy is steadily increasing. Hematoma is one of complications associated with breast augmentation surgery. It usually occurs early in the postoperative period. It rarely occurs late (after six months). However, chronic hematomas after prosthesis removal have not yet been reported in the radiological literature. We present a case of unilateral chronic organizing hematoma that developed late and grew persistently over long period after breast explantation, mimicking a soft tissue tumor of the chest wall clinically. Meanwhile, characteristic magnetic resonance imaging features of heterogeneous signal intensities on T1-weighted and T2-weighted images and dark signal intensity with a persistent enhancement of the peripheral wall of the lesion were found. These can be used for a differential diagnosis.

• Journal of Veterinary Clinics
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• v.40 no.6
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• pp.457-463
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• 2023

A 13-year-old neutered male Pomeranian, weighting 3 kg, presented with respiratory distress and depression. Radiographic examination revealed calcified ring-like opacities in the main pulmonary artery, mimicking thoracic foreign bodies. Additionally, right heart and main pulmonary artery enlargement and notable lung infiltrations were also observed. Echocardiography showed coil shaped structures in the main pulmonary artery with increased echogenicity compared to other nearby heartworms, which is consistent with calcified Dirofilaria immitis (heartworms). The dog was diagnosed with caval syndrome, which is the advanced and severe manifestation of heartworm infection. This report presents a rare case of calcified heartworm infection observed during a radiological examination, which resemble foreign bodies. Therefore, chronic heartworm disease should be considered as a differential diagnosis when radiopaque ring-like opacities are observed in the pulmonary artery on thoracic radiographs.

• Korean Journal of Radiology
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• v.2 no.2
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• pp.108-112
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• 2001

We report two cases of supratentorial gangliocytomas mimicking an extra-axial tumor. MR imaging indicated that the tumors were extra-axial, and meningiomas were thus initially diagnosed. Relative to gray matter, the tumors were hypointense on T1-weighted images and hyperintense on T2-weighted images. On contrast-enhanced T1-weighted images, homogeneous enhancement was observed, while CT scanning revealed calcification in one of the two cases.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2012.10a
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• pp.889-890
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• 2012

• Journal of the Korean Chemical Society
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• v.43 no.6
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• pp.732-736
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• 1999

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2009.10a
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• pp.453-454
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• 2009