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01-11-2016 | Scientific Article

Bone imaging findings in genetic and acquired lipodystrophic syndromes: an imaging study of 24 cases

Authors: Stephanie Teboul-Coré, Caroline Rey-Jouvin, Anne Miquel, Camille Vatier, Jacqueline Capeau, Jean-Jacques Robert, Thao Pham, Olivier Lascols, Francis Berenbaum, Jean-Denis Laredo, Corinne Vigouroux, Jérémie Sellam

Published in: Skeletal Radiology | Issue 11/2016

Abstract

Objective

To describe the bone imaging features of lipodystrophies in the largest cohort ever published.

Materials and Methods

We retrospectively examined bone imaging data in 24 patients with lipodystrophic syndromes. Twenty-two had genetic lipodystrophy: 12/22 familial partial lipodystrophy (FPLD) and 10/22 congenital generalized lipodystrophy (CGL), 8 with AGPAT2-linked CGL1 and 2 with seipin-linked CGL2. Two patients had acquired generalized lipodystrophy (AGL) in a context of non-specific autoimmune disorders. Skeletal radiographs were available for all patients, with radiographic follow-up for two. Four patients with CGL1 underwent MRI, and two of them also underwent CT.

Results

Patients with FPLD showed non-specific degenerative radiographic abnormalities. Conversely, CGL patients showed three types of specific radiographic alterations: diffuse osteosclerosis (in 7 patients, 6 with CGL1 and 1 with CGL2), well-defined osteolytic lesions sparing the axial skeleton (7 CGL1 and 1 CGL2), and pseudo-osteopoikilosis (4 CGL1). Pseudo-osteopoikilosis was the sole bone abnormality observed in one of the two patients with AGL. Osteolytic lesions showed homogeneous low signal intensity (SI) on T1-weighted and high SI on T2-weighted MR images. Most of them were asymptomatic, although one osteolytic lesion resulted in a spontaneous knee fracture and secondary osteoarthritis in a patient with CGL1. MRI also showed diffuse fatty bone marrow alterations in patients with CGL1, with intermediate T1 and high T2 SI, notably in radiographically normal areas.

Conclusions

The three types of peculiar imaging bone abnormalities observed in generalized lipodystrophic syndromes (diffuse osteosclerosis, lytic lesions and/or pseudo-osteopoikilosis) may help clinicians with an early diagnosis in pauci-symptomatic patients.

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Title: Bone imaging findings in genetic and acquired lipodystrophic syndromes: an imaging study of 24 cases
Authors: Stephanie Teboul-Coré
Caroline Rey-Jouvin
Anne Miquel
Camille Vatier
Jacqueline Capeau
Jean-Jacques Robert
Thao Pham
Olivier Lascols
Francis Berenbaum
Jean-Denis Laredo
Corinne Vigouroux
Jérémie Sellam
Publication date: 01-11-2016
Publisher: Springer Berlin Heidelberg
Published in: Skeletal Radiology / Issue 11/2016
Print ISSN: 0364-2348
Electronic ISSN: 1432-2161
DOI: https://doi.org/10.1007/s00256-016-2457-9

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Bone imaging findings in genetic and acquired lipodystrophic syndromes: an imaging study of 24 cases

Abstract

Objective

Materials and Methods

Results

Conclusions

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Objective

Materials and Methods

Results

Conclusions

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