• The Korean Journal of Oral and Maxillofacial Pathology
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• v.42 no.5
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• pp.119-123
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• 2018

Lipomas are the most common benign mesenchymal tumors composed of mature adipocytes. They are usually slow-growing, soft and asymptomatic masses. Angiolipomas are rare benign soft tissue tumors that are distinguished from common lipomas by a marked degree of vascularization. The diagnosis and prognosis of angiolipomas are based entirely on the findings of histological evaluations. Angiolipoma, showing characteristics of both lipoma and hemangioma, usually develop in the trunk and extremities, and rarely arise in the head and neck region. Angiolipoma of the cheek is very rare. This report presents the clinical and histopathological features of infiltrating angiolipoma excised from the cheek.

• Journal of Korean Neurosurgical Society
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• v.44 no.4
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• pp.265-267
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• 2008

Angiolipomas in the lumbar spinal region are extremely rare. The present report describes the identification of such a tumor and its removal, and discusses the tumor characteristics and prognosis. A 74-year-old woman was presented with a 5-month history of lower back pain. Severe radiculopathy was experienced in the left leg for 5 days prior to the presentation, and there were no neurological deficits. Magnetic resonance (MR) images showed an approximately 3.5 cm heterogeneously enhanced and elongated mass at the left L5-S1 level. A portion of the mass appeared with high signal intensity on T2-weighted MR images, with low signal intensity on T1-weighted images, and with high signal intensity on T1 fat suppression enhancement images. Resection of the tumor was approached via an L5 and S1 laminectomy. A fibrous sticky yellowish hypervascular tumor was identified. Histological study revealed the tumor as an angiolipoma. Symptoms were relieved after tumor excision, and there were no neurological sequelae. Although extremely rare, lumbar epidural angiolipoma should be considered in the differential diagnosis of lumbar spinal epidural lesions. The prognosis after surgical management of this lesion is favorable.

• Journal of Korean Neurosurgical Society
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• v.52 no.2
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• pp.161-163
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• 2012

Spinal angiolipomas are rare lesions usually found in the epidural space of the thoracic spine. The infiltrating type of spinal angiolipomas is extremely rare. This report presents the case and reviews the related literature. A 58-year-old man was presented with a 7-month history of progressive weakness and sensory change of lower extremities. Magnetic resonance images showed a well-enhanced mass infiltrating the vertebral foramen at the T4-5 level. Resection of the tumor was performed. Histological study revealed the tumor as an angiolipoma. The patient was relieved from symptoms after tumor resection.

• Journal of Korean Neurosurgical Society
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• v.29 no.4
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• pp.555-558
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• 2000

Crowth of an angiolipoma of the central nervous system is rare. Only about 60 cases were searched in the literature. We report one case of spinal angiolipoma recently treated in our institution. A 67-year-old man was admitted because of burning sensation on the both lower extremities and paraparesis. He felt burning sensation on the both great toes and it progressively involved to thighs and inguinal area during the past 1 year which gradually worsened. MR image showed a spinal mass lesion at the level of T4 to T6. The lesion was isodense and hyperdense in periphery on T1-weighted image and hyperintense on T2-weighted image. The tumor was located on the posterior area of the spinal cord and markedly enhanced after intravenous Gd-DTPA. At the operation, a soft, dark-red mass was totally removed. On histological examination, the tumor was shown to be mainly composed of mature fatty cells and numerous blood vessels with enlarged lumens. Postoperative course was uneventful and the symptoms improved gradually.

• The Journal of the Korean bone and joint tumor society
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• v.14 no.2
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• pp.131-139
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• 2008

Purpose: Lipomatous tumor occurred in hand is very rare. There is a broad spectrum of lipomatous tumors including lipomas, variants of lipomas, lipomatosis, liposarcomas and so on. We report the clinical features of 11 cases of lipomatous tumor which occurred in hand. Materials and Methods: Between 1992 and 2008, 11 cases were histologically diagnosed as lipomatous tumor in hand. We reviewed all medical records and clinical photographs retrospectively and ascertained recurrence by telephone interview. Results: Eight cases were ordinary lipomas. Three cases were angiolipoma, fibrolipoma and atypical lipoma respectively. Four cases occurred in finger, two cases in thenar area, two cases in hypothenar area, one case in palm, two cases in wrist. All cases were situated on volar surface. All patients complained of palpable masses. One patient with subungal angiolipoma felt pain. There was no neurologic sign or vascular symptom preoperatively. In one case, postoperative complication (hypoesthesia in $5^{th}$ finger) was developed. There was no local recurrence. Conclusion: In our study, lipomatous tumors occurred in hand did not recur. Patients mainly complained of feeling of lump. Pain was uncommon symptom. Postoperative complication was rare if operation was performed carefully.

• Journal of Chest Surgery
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• v.30 no.4
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• pp.467-470
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• 1997

Hibernoma is a rare, benign soft tissue tumor that is derived from the remnants of fetal brown tissue. The term hibernoma was proposed in 1914 by Cery because of its morphologic similarity to the cel s of the so-called hibernating gland of animals. The most common site of hibernomas is the subcutaneous tissue of the back, especially the interscapular area. These tumors are considered benign and malignant transformation has not been reported. We experienced a case of hibernoma, 60-year-old woman had suffered from the palpable mass without pain or tenderness on posterolateral lower chest wall, left. The tumor was extirpated under the impression of angiolipoma, but was confirmed hibernoma. She was discharged without complication.

• Journal of Korean Neurosurgical Society
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• v.65 no.1
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• pp.49-56
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• 2022

Objective : Angiolipomas are usually found in the subcutaneous tissue of the trunk and limbs. Spinal angiolipomas (SALs) are uncommon and have rarely been reported. We report a series of nine SALs patients who received surgical treatment in our department. To summarize the clinical characteristics of SALs, propose our surgical strategies, and evaluate the effects of the operation. Methods : This was a retrospective review of nine SALs patients who received surgical treatment from August 2015 to March 2020. Total or subtotal resection was determined by the axial localization (dorsal or ventral) and the extent of intervertebral foramen involvement. The outcomes were assessed based on the modified Japanese Orthopaedic Association (mJOA) scoring system utilized before surgery and at various follow-up points. Results : Among the nine patients, the mean mJOA score before surgery was 6.6±2.3, compared with 10.1±1.1 at the last follow-up time point (33.4±11.8 months). All patients achieved good outcomes, even in cases of subtotal resection. Conclusion : Early surgical resection of SALs is recommended, and the specific procedures should be determined by the axial localization (dorsal or ventral) and the extent of intervertebral foramen involvement. Most of the patients had a good prognosis, even in cases of subtotal resection.

• The Journal of the Korean bone and joint tumor society
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• v.11 no.1
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• pp.25-31
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• 2005

Purpose: This study was designed to know the usefulness of the MRI to distinguish lipoma and well differentiated liposarcoma (WDL). Materials and methods: 47 lipomatous tumors with MRI were reviewed among the 107 lipomatous tumors operated in our department. MRI examinations and their corresponding pathology reports were compared to determine sensitivity, specificity, diagnostic ability, positive predictable value and negative predictable value. Statistical analysis was performed to know the relationship between malignancy of the tumor (WDL) with the age and gender of the patients, and location, depth, size and the enhancement of tumors in MRI. Results: Among 28 lipoma in MRI examinations, 26 were proved as lipoma in pathology, and only 6 were WDL from 19 suspicious lesions in MRI, and others were proved as lipoma variants mostly. The varieties of lipoma variants were fibrolipoma, angiolipoma, spindle cell lipoma, lipoblastoma and angiomyolipoma. The sensitivity, specificity, diagnostic ability, positive predictable value and negative predictable value of MRI were 100%, 68 %, 72%, 31% and 100% in WDL, and 90%, 89%, 89%, 93% and 84% in lipoma. Among the variants to distinguish WDL and lipoma, the size of tumor and enhancement in MRI were significant statistically (p<0.05). Conclusion: MRI was highly sensitive in detection of WDL and highly specific in detection of simple lipoma. The size of tumor and enhancement in MRI were significant variants to distinguish WDL and lipoma. When MRI finding is non-specific, it is more likely to represent one of lipoma variants.