Neoplastic and Non-neoplastic Proliferative Disorders of the Perirenal Space: Cross-sectional Imaging Findings

Surabhi, Venkateswar R.; Menias, Christine O.; Prasad, Srinivasa R.; Patel, Ankitkumar H.; Nagar, Arpit; Dalrymple, Neal C.

doi:10.1148/rg.284075157

Cited by 93 publications

(30 citation statements)

References 71 publications

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“…Extraadrenal myelolipomas are very rare[17]. They have been reported in the parietal pleura[18], presacral area[19], intrathoracic paravertebral area[20], mediastinum[21,22], gastric antrum[23], perirenal tissue[24], and right iliac fossa[25]. To date, only ten cases of hepatic myelolipomas have been reported in the English-language medical literature[3-12] (Table 1).…”

Section: Discussionmentioning

confidence: 99%

Synchronous occurrence of a hepatic myelolipoma and two hepatocellular carcinomas

Xu¹,

Xie²,

Zhou³

et al. 2016

WJG

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Myelolipoma is a rare tumor composed of fat and bone marrow components, most of which are located in the adrenal gland. Myelolipoma in the liver is extremely rare. To date, only 10 cases have been reported in the English-language medical literature. In one of these cases, the hepatic myelolipoma was found within a hepatocellular carcinoma (HCC). In the present study, we report the first case of the synchronous occurrence of hepatic myelolipoma and HCCs in different liver sections of one patient, a 26-year-old female who was admitted to our hospital because of a 4-d history of upper abdominal pain. The unenhanced computed tomography (CT) images showed a well-defined low-density mass with adipose components in the right liver lobe, 4.2 cm × 4.1 cm in size. Two inhomogeneous low-density masses were found in the left liver lobe, 8.6 cm × 7.7 cm and 2.6 cm × 2.6 cm in size. The masses in both the right and left liver lobes were heterogeneously enhanced in the contrast-enhanced CT images. Based on the results of the imaging examination, the mass in the right liver lobe was preliminarily considered to be a hamartoma, and the two masses in the left liver were preliminarily considered to be HCCs. We performed a right hepatectomy, a left hepatic lobectomy, and a cholecystectomy. Microscopic and immunohistochemical results revealed that the tumor in the right liver lobe was a hepatic myelolipoma, and that the two tumors in the left liver lobe were HCCs.

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Section: Discussionmentioning

confidence: 99%

Synchronous occurrence of a hepatic myelolipoma and two hepatocellular carcinomas

Xu¹,

Xie²,

Zhou³

et al. 2016

WJG

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“…Le tissu fibro-inflammatoire peut s'étendre en bas vers le pelvis, 22 en haut audessus du hile rénal, ou dans de rares cas, il peut envahir le duodénum, 30 le hile rénal ou le rein. 31,32 Plusieurs élements peuvent aider à faire la distinction :…”

Section: 24unclassified

Fibrose rétropéritonéale : revue de littérature

Jakhlal

Elghazoui

Jabbour

et al. 2017

CUAJ

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RésuméLa fibrose rétropéritonéale (FRP) est une maladie rare, caractérisée par la présence d'un tissu fibro-inflammatoire aberrant qui se forme souvent autour de la portion sous-rénale de l'aorte abdominale et des artères iliaques. Une obstruction urétérale est souvent observée. Récemment, la FPR idiopathique est rapportée parmi les manifestations de la maladie à IgG4. L'imagerie joue un rôle important dans le diagnostic de la FRP. Les glucocorticoïdes sont le traitement de référence, utilisés en monothérapie ou en association avec d'autres agents médicamenteux. En cas d'échec des mesures conservatrices, la chirurgie peut être proposée. Récemment, des techniques minimalement invasives ont été utilisées.

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“…The perirenal type occurs as uniform enhancing masses either around (19) or encasing the kidneys (18). On CT, extramedullary hematopoiesis usually occurs as hypoenhancing lesions of soft-tissue attenuation due to its predominant hematopoietic component; however, fatty components have been reported (20). Calcification has been reported, but it is extremely rare (21,22).…”

Section: Figurementioning

confidence: 99%

Case 237: Renal Cell Carcinoma with Osseous Metaplasia

Lai¹,

Ka²,

Kan³

et al. 2017

Radiology

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History A 47-year-old man presented with palpitations and decreased exercise tolerance. A peripheral blood smear revealed anemia, thrombocytopenia, and blast cells, and a diagnosis of acute myeloid leukemia was made. Immunohistochemistry revealed positivity for cluster of differentiation (or CD) markers, which have been reported to be associated with an increased risk of extramedullary leukemic involvement. Thus, contrast material-enhanced computed tomography (CT) of the thorax, abdomen, and pelvis was requested to enable exclusion of any extramedullary extension of leukemia. Unenhanced and contrast-enhanced nephrographic phase CT was performed. Follow-up CT 3 months later showed minimal interval change in the lesion (images not shown).

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Neoplastic and Non-neoplastic Proliferative Disorders of the Perirenal Space: Cross-sectional Imaging Findings

Cited by 93 publications

References 71 publications

Synchronous occurrence of a hepatic myelolipoma and two hepatocellular carcinomas

Synchronous occurrence of a hepatic myelolipoma and two hepatocellular carcinomas

Fibrose rétropéritonéale : revue de littérature

Case 237: Renal Cell Carcinoma with Osseous Metaplasia

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