Intraosseous lipoma of the distal femur: MRI appearance

Une talalgie est l'une des symptômes les plus courants du pied. LeLipome intra-osseuse est l'un des plus rares tumeurs osseuses trouvées dans le calcanéum. Nous rapportons une observation d’un patient s’est présenté à la consultation avec des douleurs intermittentes chroniques et spontanées du talon, chez qui les investigations cliniques et radiologiques ont retenu un diagnostic d’un lipome du calcanéum.Le but de cet article est de sensibiliser les cliniciens à l'existence de cette lésion inhabituelle.

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“…L´IRM est une excellente méthode pour démontrer complications comme la nécrose adipeuse, ou un hématome intra-lésionnelle [15]. …”

Section: Discussionunclassified

“…Le diagnostic différentiel doit inclure fibreuse infarctus osseux, la dysplasie fibreuse, enchondrome, ostéoblastome, simple kyste osseux, et d´autres lésions comme chondrosarcome, liposarcome [14, 15]. Sur le plan histologique, il est un tissu adipeux mature avec calcifications intralésionnelles [16].…”

Section: Discussionunclassified

A propos d’une cause inhabituelle de talalgie

Bousbaä¹,

Ouahidi²,

Bennani³

et al. 2017

Pan Afr Med J

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“…Intraosseus lipomas can be found in any part of the bone since fat is present in the marrow of all bones. However, the majority of these occur in the long bones and in the lower extremity [9,11]. Although the etiology is unknown, multiple intraosseous lipomas have been reported in the patients with hyperlipoproteinemia, macrodystrophia lipomatosa and as a congenital variant following autosomal pattern of inheritance [1,2,6].…”

Section: Discussionmentioning

confidence: 99%

Multiple intraosseous lipomatosis: a case report

Rehani

Wissman

2009

Cases Journal

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IntroductionIntraosseous lipoma is an uncommon entity that presents almost exclusively as a solitary lesion. Multiple intraosseous lipomas are exceedingly rare with only a few cases being reported in the literature.Case presentationWe present a case of 43-year-old African American female who presented with left leg and left wrist pain. The initial radiographs revealed well-defined radiolucent lesions in multiple bones involving the left wrist and the left lower limb. The magnetic resonance demonstrated multiple lesions, which showed high signal on the T1 and low signal on the fat suppressed T2 images. This favored the diagnosis of intraosseous lipomatosis that was confirmed by biopsy.ConclusionMultiple intraosseous lipomatosis is an uncommon but important differential for multiple radiolucent lesions on the plain radiographs. This condition can lead to pathological fractures. Magnetic resonance imaging can aid in providing an accurate diagnosis. The awareness of this condition can help the clinician in guiding the correct diagnosis and management.

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“…The STIR sequence was useful for diagnosing intraosseous lipoma, because the extra signal intensity of the lesion is suppressed, indicating the presence of normal fat. In addition, intralesional hypointense areas on T1-weighted images were demonstrated to be dystrophic calcification in necrotic fat, because there was no enhancement after the intravenous administration of gadolinium [8][9][10].…”

Section: Discussionmentioning

confidence: 99%

“…It is regarded as a true neoplasm or as a degenerative phenomenon related to trauma, infection or vascular comprise [9].…”

Section: Discussionmentioning

confidence: 99%

Intraosseous lipoma of the calcaneus

Benazzo

Pria

2004

J Orthopaed Traumatol

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IntroductionIntraossoeus lipoma is one of the rarest benign bone tumors [1]. Milgram [2] emphasized that the entity is not as rare as the literature suggests, because many lipomas in common sites such as proximal femur and calcaneus have been misdiagnosed as cysts or bone infarction, and have been followed by unnecessary surgical interventions.We present a patient with non-specific foot pain without any trauma. The aims of this paper are to focus attention on this rare pathology, describe various imaging features and histopathological findings, and discuss a nonsurgical treatment. Case reportA 58-year-old man presented with increasing right foot pain over the previous 4 months without any history of trauma or fever. On physical examination, the range of motion of the ankle was slightly limited in dorsal extension. Mild tenderness was present on the lateral and plantar sides of the back foot without swelling.Roentgenograms of the right back foot showed in the proximal calcaneus a well defined osteolytic lesion with no marginal sclerosis (Fig. 1). In the center, a calcified foci was present. T1-weighted magnetic resonance imaging (MRI) (Fig. 2) revealed a lesion with slightly greater intensity than that of intramedullary fat and almost isointensity to subcuta-C A S E R E P O R T Abstract Intraosseous lipoma is rare and often misdiagnosed. A patient with intraosseous lipoma in the calcaneus is presented with conventional radiography, bone scintigraphy, magnetic resonance imaging and histological findings. The intention of this work is to show the diagnostic procedure of a rare bone tumor. Despite its benign nature, the tumor is often salvaged by surgery. However, a simple observation can avoid unnecessary surgical intervention and complication.

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Intraosseous lipoma of the distal femur: MRI appearance

Cited by 39 publications

References 4 publications

A propos d’une cause inhabituelle de talalgie

A propos d’une cause inhabituelle de talalgie

Multiple intraosseous lipomatosis: a case report

Intraosseous lipoma of the calcaneus

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