• Nuclear Medicine and Molecular Imaging
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• v.42 no.3
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• pp.246-248
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• 2008

A hepatic angiomyolipoma is a rare benign tumor mainly composed of blood vessels, smooth muscle cells and fat cells in varying proportion. Hepatic angiomyolipoma is often misdiagnosed as a hepatocellular carcinoma in preoperative imaging work-up. To date, there has been little published data describing PET findings of hepatic angiomyolipoma. We report one case of hepatic angiomyolipoma that showed a high acetate and relatively low FDG uptake on PET images.

• Archives of Craniofacial Surgery
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• v.24 no.2
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• pp.83-86
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• 2023

Angiomyolipomas are usually found in the kidneys of patients with tuberous sclerosis. They occur less frequently in organs such as the liver, the oral cavity, the nasal cavity, the heart, the large intestines, and the lungs. Angiomyolipomas of the skin are extremely rare, and cutaneous angiomyolipomas generally occur on the elbow, the ends of digits, the ear, and the glabella. Herein we present a rare case of angiomyolipoma occurring on the face-specifically, the right upper eyelid. We propose that upper eyelid angiomyolipoma is a hamartomatous, rather than neoplastic, lesion. Although angiomyolipoma in the periocular area is rare, it should be considered in the differential diagnosis of clinically benign masses. and regular follow-up is warranted.

• Korean Journal of Head & Neck Oncology
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• v.31 no.2
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• pp.43-45
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• 2015

Angiomyolipoma is a benign tumor that is composed of adipose tissue, blood vessels and smooth muscle. The kidney is the most common location of this tumor. In the larynx, angiomyolipoma has been rarely reported in the literature. We describe the patient of 64-year-old male with an angiomyolipoma arising from the vallecula. The tumor had a smooth surface with numerous small vessels and showed heterogeneous contrast enhancement on CT. The tumor was not adhesive to surrounding tissue and was completely removed by laryngomicrosurgery with $CO_2$ laser. Microscopically, the tumor is composed of mature adipose tissue, tortuous thick walled blood vessels and thick bundles of smooth muscle.

• The Korean Journal of Cytopathology
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• v.5 no.1
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• pp.65-70
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• 1994

We describe a case of fine needle aspiration cytology of renal angiomyolipoma which was not associated with the clinical complex of tuberous sclerosis and was incidentally found. It was a solitary lesion and the clinical impression before needle aspiration was renal ceil carcinoma. The aspirated specimen showed mature fat cells, clusters of renal tubular epithelial cells and sheets of pleomorphic smooth muscle cells with fibrillary cytoplasm. The nuclei of smooth muscle celis varied in size and shape. Since the treatment of renal angiomyolipoma differs from that of renal ceil carcinoma, the preoperative cytological diagnosis is of great value.

• Archives of Craniofacial Surgery
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• v.18 no.3
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• pp.202-206
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• 2017

Angiomyolipomas are hamartomatous lesions consisting of smooth muscle bundles, thick-walled blood vessels, and mature adipocytes. They are usually found in the kidneys of tuberous sclerosis patients and more rarely in other organs, such as the liver, the oral cavity, the sinonasal tract, the heart, the large intestines, the lungs, and the skin. Cutaneous angiomyolipoma has shown to be very rare and generally occurs at the ends of the digits, the elbows, the ears, and the nose. Herein, we report the first documented case of angiomyolipoma of the glabellar region.

• The Korean Journal of Cytopathology
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• v.19 no.2
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• pp.188-193
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• 2008

Angiomyolipoma of the liver is a rare benign tumor that's composed of variable mixtures of adipose tissue, smooth muscle and thick-walled blood vessels. We report here on the imprint cytologic features of a hepatic angiomyolipoma in a 47-year-old man. The smears showed spindle and epithelioid tumor cells in clusters, trabeculae and single cells. The spindle cells had elongated, cigar-shaped nuclei with finely granular chromatin and fibrillary cytoplasm. The epithelioid cells had round nuclei with a moderate amount of cytoplasm. Any adipose tissue was not found. Immunohistochemically, both the spindle and epithelioid cells revealed cytoplasmic positivity for smooth muscle actin and HMB-45.

• Journal of the Korean Society of Radiology
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• v.82 no.5
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• pp.1292-1296
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• 2021

Renal epithelioid angiomyolipoma (EAML) is a rare variant of angiomyolipoma (AML), with a prominent epithelioid component. EAML usually presents as a large heterogeneous soft tissue lesion with intratumoral hemorrhage and variable necrosis or cystic changes. We present a case of multiloculated cystic renal EAML mimicking renal cell carcinoma in a 64-year-old female. Intracystic massive hemorrhage, hyperattenuating wall and septa on an unenhanced study, and enlarged intratumoral vessels can be helpful imaging features for distinguishing renal EAML from renal cell carcinoma.

• The Korean Journal of Cytopathology
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• v.9 no.1
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• pp.79-84
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• 1998

Angiomyolipoma(AML) of the liver is a rare benign tumor; about 50 cases, almost solitary, have been reported. We present here a extremely rare case of multiple AML in the liver diagnosed by fine needle aspiration cytology(FNAC). Two large masses were found in a 51 year-old woman complaining of abdominal discomfort by computed tomography and several smaller masses are scattered in the liver. FNAC was performed, showing bundles of spindle shaped smooth muscle cells intermingled with mature fat cells. FNAC may be a valuable method for definitive diagnosis of hepatic AML. The diagnosis was further confirmed by histologic examination with immunohistochemical studies.

• Asian Pacific Journal of Cancer Prevention
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• v.13 no.2
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• pp.493-497
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• 2012

This study was conducted to retrospectively evaluate the pattern of contrast enhancement with SonoVue on gray-scale ultrasonography of hepatic angiomyolipoma (HAML). Imaging features of 33 pathologically proven HAML lesions in 33 patients who underwent baseline ultrasound and contrast-enhanced ultrasonography (CEUS) were assessed retrospectively. All lesions were enhanced in the arterial phase and showed whole-tumor filling in. Thirty-two of 33 (97%) lesions showed early positive enhancement in the arterial phase. Twenty-three of these exhibited isoechoic or hyperechoic features in the portal phase. HAML demonstrate characteristic manifestations with SonoVue-enhanced real-time gray-scale ultrasonography.

• Tuberculosis and Respiratory Diseases
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• v.44 no.5
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• pp.1184-1193
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• 1997

Lymphangioleiomyomatosis(LAM) is rare and essentially limited to women in the reproductive ages. A 39-year-old female was admitted due to progressive exertional dyspnea and intermittent productive cough. Chest PA showed marked hyperinflation of the lung associated with a diffuse reticulo-nodular pattern. High resolution CT scan of the thorax demonstrated that diffusely scattered thin-walled cysts were distributed throughout the bilateral lung fields. Abdominal CT scan showed variable sized multiple angiomyolipoma of both kidney. By open lung biopsy, she was diagnosed as pulmonary LAM associated with Tuberous sclerosis and renal Angiomyolipoma. We present the case and discuss the connection between pulmonary LAM and Tuberous sclerosis.