• Imaging Science in Dentistry
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• v.47 no.4
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• pp.275-279
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• 2017

Soft tissue calcification is a pathological condition in which calcium and phosphate salts are deposited in the soft tissue organic matrix. This study presents an unusual calcification noted in the cartilaginous portion of the Eustachian tube. A 67-year-old woman presented for dental treatment, specifically for implant placement, and cone-beam computed tomography (CBCT) was performed. The CBCT scan was reviewed by a board-certified oral and maxillofacial radiologist and revealed incidental findings of 2 distinct calcifications in the cartilaginous portion of the Eustachian tube. To the authors' knowledge, no previous study has reported the diagnosis of Eustachian tube calcification using CBCT. This report describes an uncommon variant of Eustachian tube calcification, which has a significant didactic value because such cases are seldom illustrated either in textbooks or in the literature. This case once again underscores the importance of having CBCT scans evaluated by a board-certified oral and maxillofacial radiologist.

• Tuberculosis and Respiratory Diseases
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• v.60 no.2
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• pp.235-238
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• 2006

Exogenous lipoid pneumonia (ELP) is an uncommon condition resulting from aspiration or inhalation of vegetable, animal or mineral oil. It results in foreign body type inflammatory reaction of the lung and can show various clinical presentations from asymptomatic incidental finding to severe pneumonia leading to acute respiratory failure. Although many cases have been reported, severe ELP requiring steroid or whole lung lavage for treatment is rare. We report a case of 51-year old man with esophageal cancer who developed severe ELP following ingestion of large dose shark oil (Squalene) and successfully treated with prednisolone.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.34 no.4
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• pp.271-275
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• 2012

Squamous cell papillomas are one of the most common lesions of the oral mucosa with a mucosa of the hard and soft palate, including the uvula, palate, tongue and lips. As an oral lesion, it raises concerns because of its clinical appearance, which may mimic exophytic carcinoma. Its pathogenesis is related to the human papilloma virus (HPV), but there is controversy regarding its viral origin. Many considered its pathogenesis as being from the HPV. But recent literature suggests that the presence of HPV may be merely an incidental finding unrelated to the development of a squamous papilloma. We accidentally found a patient not related to the HPV of oral squamous papilloma on the tongue, and we will report this case with literature review.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.23 no.1
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• pp.110-114
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• 2020

Gastric xanthoma is frequently an incidental finding on upper endoscopy in adults. Gastric xanthomas (GX) can be mistaken for malignancies and warrant prompt histologic diagnosis. The underlying etiology is not fully understood; however, it has been linked to Helicobacter pylori gastritis and gastric cancer. GX in the pediatric population is largely unreported in the literature. Because of the relative rarity, documentation with case reports are essential to provide as much data as possible to see if there is a correlation between GX and malignant potential in the pediatric population. Our group is reporting two cases, a 10-year-old male and a 7-year-old male, both who presented with chronic dysphagia, upper abdominal pain, nausea, vomiting, and loss of appetite. Upper endoscopies for both patients revealed small polypoid lesions located in the antrum with foamy histiocytes on histology, leading to the diagnosis of gastric xanthoma.

• Journal of Chest Surgery
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• v.43 no.2
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• pp.208-211
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• 2010

An occurrence of hemangioma in the mediastinum is a very rare, accounting for less than 0.5% of mediastinal tumors. Capillary hemangiomas and cavernous hemangiomas consists of over 90% of mediastinal hemangiomas. However, venous hemangioma has never been reported in South Korea and has also very rarely been reported worldwide. We found mediastinal solid mass, as an incidental finding during a follow-up chest CT scan of a 44-year-old female patient who had undergone colon cancer surgery. We performed a mediastinoscopic biopsy. We did a thoracotomy to remove this mass because hemorrhage and found a totally resected venous hemangioma.

• Investigative Magnetic Resonance Imaging
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• v.11 no.1
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• pp.49-53
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• 2007

Fibrous dysplasia is a skeletal developmental anomaly of the bone-forming mesenchyme that manifests as a defect in osteoblastic differentiation and maturation. It is a nonhereditary disorder of unknown cause. In fibrous dysplasia, the medullary bone is replaced by fibrous tissue, which appears various imaging findings. It is usually an incidental finding, generally not requiring further investigation. However, fibrous dysplasia may be complicated by pathologic fracture, and rarely by malignant degeneration. We present the image findings of a 44-year-old man who had a chondroblastic osteosarcoma arising from polyostotic fibrous dysplasia in the femur. Evidence of cortical destruction on plain radiography and soft tissue mass in the lesion on MR images suggested a tumor of malignant transformation.

• Nuclear Medicine and Molecular Imaging
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• v.43 no.4
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• pp.352-356
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• 2009

Intravascular large B-cell lymphoma (IVLBCL) is a subtype of diffuse large cell lymphoma, characterized by proliferation of lymphoid cells in the intravascular space of various organs without causing a mass effect. Although $^{18}$F-FDG PET is a powerful imaging tool in lymphoma, the usefulness of $^{18}$F-FDG PET in the assessment of IVLBCL is still controversial. $^{99m}$Tc-MIBI, a tumor imaging radiopharmaceutical with a different mechanism from that of $^{18}$F-FDG, has been reported to be also effective in lymphoma. However, there is nearly no report on the efficacy of $^{99m}$Tc-MIBI in the assessment of IVLBCL. We present one case of IVLBCL that showed $^{99m}$Tc-MIBI accumulation in the involved bone marrow as an incidental finding, which was discrepant from that of $^{18}$F-FDG PET.

• Proceedings of the Korean Society of Veterinary Pathology Conference
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• 2001.09a
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• pp.25-25
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• 2001

An example of lymphoblastic lymphosarcoma was diagnosed in a 7-year-old male brown bear (Ursus arctos) that died after having a 7-month history of depression, anorexia and watery diarrhea. Grossly the mesenteric lymph nodes were enlarged to approximately 4 to 6 times their normal size and histologically diagnosed as lymphoblastic lymphosarcoma. The small intestinal mucosa was corrugated and had severe mural thickening due to infiltrated neoplastic cells. Hepatic metastasis was also noted. the mother of this bear which died at the age of 20 also had similar gross changes on necropsy, but histological examination was not performed at that time and therefore the exact type of neoplasm remained to be determined. Since the daughter also died of neoplasm, genetic factor could be suspected in this family. This is the first reported case of lymphosarcoma in Ursidae in Korea. As an incidental finding, endogenous lipid pneumonia was noted in the lung.

• Journal of Korean Foot and Ankle Society
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• v.19 no.1
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• pp.27-31
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• 2015

Intraosseous lipoma is a benign tumor that originates from proliferating mature lipocytes. It often occurs in the metaphysis of long bones of the lower extremity, and also in the calcaneus, humerus, mandible, sacrum, and rib bones. Frequently, it involutes spontaneously through a process of infarction, calcification, and cyst formation. It can either present as pain, or be asymptomatic and only discovered through an incidental radiological finding. In our case, the patient presented with heel pain. Intraoperatively, it was found that the intraosseous cavity was filled with fat along with an adjacent but separate area of cystic degeneration. There was also a cortical perforation at the cystic lesion which was communicating with the subtalar joint. This cortical breach is most likely the cause of diffuse lateral heel pain experienced by our patient, and such a pathological fracture due to intraosseous lipoma has never been reported.

• Advances in pediatric surgery
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• v.13 no.2
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• pp.179-186
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• 2007

Lipoblastoma is a rare benign soft tissue tumor occurring in infancy and early childhood. It is characterized by fat lobules with varying degrees of maturity, multivaculoated lipoblasts, fibrocapillary networks and myxoid stroma. Lipoblastoma has a good prognosis with no metastases despite its potential for local invasion. From Jan, 1990 through April, 2007, 12 children underwent the operation for lipoblastoma, 7 boys and 5 girls, diagnosed at median 22 months (5 ~ 43 months). Median follow up was 6 year 7 months. Primary sites included back (n = 5), intraabdominal (n = 2) and one in each of buttock, chest wall, neck, nose and scalp. Tumors presented with a growing mass in 9 patients, abdominal distension in 2, and an incidental finding on chest radiography in one. Complete excisions were done in all patients. There was one recurrence in a patient with a scalp mass. After reoperation, he has been doing well without evidence of recurrence. Lipoblastoma has a favorable prognosis, but recurrence can occur even with complete excision. Regular follow up is necessary to detect recurrences.