S. Riehm

University of Strasbourg, Strasburg, Alsace, France

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Publications (83)102.89 Total impact

  • J.-J. Braun · C. Debry · L. Donato · S. Riehm
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    ABSTRACT: L’obstruction des voies lacrymales du nouveau-né ou du nourrisson par imperforation lacrymonasale est fréquente et souvent spontanément résolutive. Le kyste lacrymonasal (KLN) est une affection rare, de diagnostic difficile pour le pédiatre, l’oto-rhino-laryngologiste (ORL), l’ophtalmologiste et le radiologue. À partir de 6 observations de KLN regroupant les différentes formes cliniques et d’une revue de la littérature, nous précisons la sémiologie clinique et radiologique du KLN. La symptomatologie clinique peut être ophtalmologique (masse canthale ou dacryocystite) ou rhinologique (dyspnée obstructive haute, permanente ou intermittente, avec risque de détresse respiratoire aiguë chez le nouveau-né). Un examen ORL minutieux complété par une tomodensitométrie (TDM) ou par une imagerie par résonance magnétique (IRM) montre une masse kystique, uni- ou bilatérale, dans la région du méat inférieur, entre le cornet inférieur, le plancher et le septum et permet d’éliminer les autres pathologies kystiques ou tumorales nasales. Ainsi face à une symptomatologie parfois atypique ou à une dyspnée obstructive haute, il faut penser au KLN et demander une endoscopie nasale et une imagerie TDM ou IRM pour le diagnostic positif et différentiel avant une simple marsupialisation du ou des kystes qui assure la guérison immédiate et définitive.
    No preview · Article · Dec 2015
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    ABSTRACT: Olfactory Bulb (OB) volume evaluation by MRI has been demonstrated to be related to olfactory dysfunction in many different diseases. Olfactory dysfunction is often overlooked in Bardet Biedl syndrome (BBS) patients and is rarely objectively evaluated by MRI. We present a series of 20 BBS patients with olfactory dysfunction. The olfactory bulb was evaluated separately and blindly by two radiologists (SR and SM) with 3 Tesla MRI imaging comparatively to 12 normal control subjects by global visual evaluation and by quantitative measurement of OB volume. In the 12 control cases OB visual evaluation was considered as normal in all cases for radiologist (SR) and in 10 cases for radiologist (SM). In the 20 BBS patients OB visual evaluation was considered as abnormal in 18 cases for SR and in all cases for SM. OB volumetric evaluation for SR and SM in BBS patients was able to provide significant correlation between BBS and olfactory dysfunction. This study indicates that OB volume evaluation by MRI imaging like structural MRI scan for gray matter modifications demonstrates that olfactory dysfunction in BBS patients is a constant and cardinal symptom integrated in a genetical syndrome with peripheral and central olfactory structures alterations.
    No preview · Article · Nov 2015 · Clinical Genetics

  • No preview · Article · May 2015 · Medecine Nucleaire
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    ABSTRACT: Objectives: Describe 2 intralaryngeal prostheses (ILP) designed to treat laryngeal sphincter incompetence. Present the development of these new devices and analyze the improvement of swallowing.
    No preview · Article · Sep 2014 · Otolaryngology Head and Neck Surgery

  • No preview · Article · Jul 2014 · Transplantation
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    ABSTRACT: Background: Atrophic rhinitis results from progressive atrophy of the nasal mucosa and underlying bone. Empty nose syndrome is often described as post-turbinectomy iatrogenic atrophic rhinitis. For some authors a distinction should be drawn between these two conditions. Purpose: The aim of this article is to review the literature (PubMed, EMBASE, Google: Atrophic Rhinitis, Ozaena, Empty Nose Syndrome) and to present a representative series of 21 cases of the two conditions in a compressed overview. Clinical, endoscopic, radiological features: The clinical symptoms include nasal obstruction, epistaxis, impaired olfaction, purulence and crusting. Endoscopy and computed tomography show mucosal and osteochondral modifications with an enlargement of the nasal cavities up to the choanae. Aetiologies: By combining the results of clinical, endoscopic, imaging and additional investigations if necessary, it may be possible to differentiate between primary or idiopathic forms and secondary forms of atrophic rhinitis to optimize diagnostic work-up and patient management. Conclusions: Atrophic rhinitis and empty nose syndrome present similar symptoms, endoscopic and imaging findings. Atrophic rhinitis deserves greater recognition by ENT surgeons and radiologists alike. The distinction between primary AR and the different aetiological forms of secondary AR is not only academic but also has therapeutic and prognostic importance.
    Full-text · Article · Jul 2014
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    ABSTRACT: Background and purpose: To compare diagnostic performances for cholesteatoma diagnosis of incremental MRI protocols including non-echo planar diffusion-weighted imaging (DWI) performed on 3T and 1.5T scanners. Materials and methods: Thirty-nine patients with suspected cholesteatoma underwent 3T and 1.5T non-echo planar DWI and additional unenhanced T1-, delayed gadolinium-enhanced T1- and high-resolution T2-weighted standard acquisitions. Patients either underwent surgical tympanoplasty (n=21) or close clinicoradiological follow-up (n=18). Four radiologists independently and prospectively interpreted two incremental MRI protocols, differing in the magnetic field strength of the diffusion-weighted acquisition and comprising the three standard sequences. At each step, diagnostic performances were expressed as sensitivity, specificity, positive predictive value, negative predictive value and accuracy. Results: Forty middle ear lesions including 21 cholesteatomas were identified. Univariate and multivariate analysis did not demonstrate significant reader, sequence addition or DWI magnetic field effect on diagnostic performances. Concerning non-echo planar DWI alone, sensitivity, specificity, positive predictive value, negative predictive value and accuracy ranged between 90.5-100%, 68.4-100%, 76.9-100%, 90.0-100% and 82.5-95.0, respectively. Conclusion: Non-echo planar DWI for cholesteatoma diagnosis can be performed on 1.5T or 3T scanners indifferently. High sensitivity and negative predictive value and relatively lower specificity and positive predictive value are achieved by a single non-echo planar DWI protocol.
    No preview · Article · Jul 2014 · Journal of Neuroradiology
  • J J Braun · A Dupret · F Veillon · S Riehm
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    ABSTRACT: Here we report a case of pseudotumoral recurrence of allergic fungal sinusitis with involvement of the skull base that was successfully treated with systemic corticosteroids and itraconazole without surgery. This report discusses the sometimes misleading radiological and clinical features as well as the diagnostic and therapeutic challenges of a condition that should be recognized by ENT specialists, neurosurgeons, ophtalmologists and radiologists.
    No preview · Article · Apr 2014 · B-ENT
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    ABSTRACT: Bardet-Biedl syndrome (BBS) is a well-recognized ciliopathy characterized by cardinal features namely: early onset retinitis pigmentosa, polydactyly, obesity, hypogonadism, renal and cognitive impairment. Recently, disorders of olfaction (anosmia, hyposmia) have also been described in BBS patients. Moreover, morphological brain anomalies have been reported and prompt for further investigations to determine whether they are primary or secondary to peripheral organ involvement (i.e.: visual or olfactory neuronal tissue). The objective of this paper is to evaluate olfactory disorders in BBS patients and to investigate putative correlation with morphological cerebral anomalies. To this end, twenty BBS patients were recruited and evaluated for olfaction using the University of Pennsylvania Smell Identification Test (UPSIT). All of them underwent a structural MRI scan. We first investigated brain morphological differences between BBS subjects and 14 healthy volunteers. Then, we demonstrated objective olfaction disorders in BBS patients and highlight correlation between gray matter volume reduction and olfaction dysfunction in several brain areas.
    No preview · Article · Mar 2014 · Clinical Genetics

  • No preview · Article · Jan 2014 · La Presse Médicale

  • No preview · Article · Jan 2014
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    ABSTRACT: IntroductionBrown tumors are uncommon osteolytic lesions directly related to the increased osteoclastic activity due to hyperparathyroidism.Case reportA 37-year-old woman presented with hypercalcemia related to primary hyperparathyroidism. Multiple and bilateral maxillary osteolytic lesions showing intense fluorodesoxyglucose (FDG) uptake were noted in a positron emission tomography computed tomography (PET-CT). Diagnosis of maxillary brown tumors was discussed and confirmed by both orthopantomogram and magnetic resonance imaging. Left inferior parathyroid adenoma was detected by both cervical ultrasonography and parathyroid scintigraphy, and then surgically treated with consequent improvement of hyperparathyroidism.Conclusion Our case emphasizes the necessity of a multidisciplinary diagnostic approach to optimize the interpretation of the available imaging, especially in unusual and unrecognized pathology as brown tumors.
    Full-text · Article · Jun 2013 · La Revue de Médecine Interne
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    A Imperiale · S Riehm · J J Braun
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    ABSTRACT: Aim: The aim of this paper was to evaluate the clinical usefulness of [18F]FDG PET/CT for treatment efficacy assessment in patients with severe multisystemic phenotype of sarcoidosis with special emphasis on sinonasal involvement. Methods: Thirteen patients with biopsy-proven sinonasal sarcoidosis (SNS) who underwent two [18F]FDG-PET/CT were selected. PET/CT results were correlated with nasal endoscopy, biology and conventional imaging techniques (CT, MRI). Four and nine patients underwent first PET/CT before beginning treatment and during CS therapy, respectively. On the other hand, ten and three patients underwent second PET/CT during CS and after treatment withdrawal, respectively. The mean duration of clinical and endoscopic follow-up after the second scintigraphic examination was 51 months. Results: Eleven out of 13 selected patients presented with pathological nasal endoscopy at inclusion. Among them: 1) 5 showed persistent endoscopic abnormalities at follow-up evaluation. Radiological and PET/CT imaging was consistent with these results in 4 and 5 patients, respectively; 2) 2 showed a complete endoscopic, radiologic and PET/CT normalization after CS treatment; 3) 4 showed important alterations of the sinonasal structures preventing a definitive diagnosis by endoscopic and radiologic techniques. PET/CT suggested a residual inflammatory disease in two cases. No scintigraphic abnormalities were detected in the other 2 patients. Scintigraphic results were finally confirmed by a mean follow-up of 51 months. No pathologic sinonasal [18F]FDG uptake was observed in the remaining 2/13 patients who showed doubtful endoscopic and radiologic results during primary evaluation. The stability of endoscopic results without clinical and biological evolution was observed during 39 and 38 months of follow-up after the second PET/CT. Conclusion: [18F]FDG PET/CT seems to be a valuable non-invasive imaging technique able to evaluate the response to treatment in aggressive SNS, identifying persistent active disease even in those patients with destructive sinonasal aftereffects and/or with atypical therapeutic evolution. Finally, [18F]FDG PET/CT could be clinically useful to modulate CS treatment eventually integrating immunosuppressive drugs.
    Full-text · Article · Apr 2013 · The quarterly journal of nuclear medicine and molecular imaging: official publication of the Italian Association of Nuclear Medicine (AIMN) [and] the International Association of Radiopharmacology (IAR), [and] Section of the Society of...
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    ABSTRACT: INTRODUCTION: Brown tumors are uncommon osteolytic lesions directly related to the increased osteoclastic activity due to hyperparathyroidism. CASE REPORT: A 37-year-old woman presented with hypercalcemia related to primary hyperparathyroidism. Multiple and bilateral maxillary osteolytic lesions showing intense fluorodesoxyglucose (FDG) uptake were noted in a positron emission tomography computed tomography (PET-CT). Diagnosis of maxillary brown tumors was discussed and confirmed by both orthopantomogram and magnetic resonance imaging. Left inferior parathyroid adenoma was detected by both cervical ultrasonography and parathyroid scintigraphy, and then surgically treated with consequent improvement of hyperparathyroidism. CONCLUSION: Our case emphasizes the necessity of a multidisciplinary diagnostic approach to optimize the interpretation of the available imaging, especially in unusual and unrecognized pathology as brown tumors.
    Full-text · Article · Mar 2013 · La Revue de Médecine Interne
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    ABSTRACT: This is a report of six cases of respiratory epithelial adenomatoid hamartoma of the nasal cavities that were characterized by: symptoms of nasal obstruction and dysosmia; endoscopic appearances of bilateral nasal polyposis affecting the olfactory clefts; CT imaging showing enlargement of the olfactory clefts; MRI (rarely reported in the literature) revealing clearly delineated cerebriform tissue filling in the olfactory clefts; histological confirmation in all cases; and recovery after surgical endoscopic resection without the need for associated sinus surgery.
    No preview · Article · Dec 2012 · Journal of Neuroradiology
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    S Riehm · F Veillon
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    ABSTRACT: Sinonasal and temporal bone infections may extend to the skull, skull base, meninges, pericerebral spaces, brain parenchyma, dural sinuses, deep cerebral or cortical veins, intracranial arteries and cranial nerves either via contiguous or hematogeneous spread. The site of infection dictates the sites of potential complications: orbital with ethmoid sinusitis, cavernous sinus thrombophlebitis and oculomotor palsies with sphenoid sinusitis, transverse sinus thrombophlebitis with mastoiditis and superior sagittal sinus thrombophlebitis with frontal sinusitis. All may result in brain abscess. Congenital and acquired defects of the skull and meninges, with or without associated meningocele or meningoencephalocele, perilymphatic fistulas, and some anomalies of the inner ear may predispose to the intracranial extension of ENT infections.
    Preview · Article · Nov 2011 · Journal de Radiologie
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    Full-text · Article · May 2011 · European Journal of Nuclear Medicine
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    ABSTRACT: Introduction Sarcoidosis is a non-caseating granulomatous disease of unknown origin, principally affecting the respiratory tract. Background Sarcoidosis of the upper respiratory tract (SURT) includes sino-nasal sarcoidosis (SNS) and pharyngo-laryngeal sarcoidosis (PLS). SURT may be isolated or, more often, part of multisystemic sarcoidosis. Its clinical symptomatology is protean and non specific. The natural history, course and prognosis are poorly understood and unpredictable. The treatment has not yet been standardised and the long-term therapeutic results are often disappointing. Viewpoint In this work, we try to make a synthesis of our experience and publications, and the data in the existing international literature, to improve the diagnosis and therapeutic management of SURT. The usefulness of both morphological and functional imaging techniques, in particular 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET/CT), is evaluated for use in the management of the severe phenotypes of sarcoidosis such as SURT. Conclusions Even if guided biopsy remains necessary for confirmation of SURT, medical imaging plays an important role in the management of this disease: CT imaging allows the description of SNS and classification into two stages that correlate well with the severity, reversibility and course of the sino-nasal involvement, 18F-FDG PET/CT, providing a complete morpho-functional mapping of active inflammatory lesions, could be a useful technique in patients with biopsy-proven SURT, for both diagnosis and follow up of medical treatment.
    Full-text · Article · Feb 2011 · Revue des Maladies Respiratoires

  • No preview · Article · Feb 2011 · Médecine des Maladies Métaboliques
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    J-J Braun · S Riehm · A Imperiale · A-S Schultz-Carpentier · A Gentine · F de Blay
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    ABSTRACT: Sarcoidosis is a non-caseating granulomatous disease of unknown origin, principally affecting the respiratory tract. Sarcoidosis of the upper respiratory tract (SURT) includes sino-nasal sarcoidosis (SNS) and pharyngo-laryngeal sarcoidosis (PLS). SURT may be isolated or, more often, part of multisystemic sarcoidosis. Its clinical symptomatology is protean and non specific. The natural history, course and prognosis are poorly understood and unpredictable. The treatment has not yet been standardised and the long-term therapeutic results are often disappointing. In this work, we try to make a synthesis of our experience and publications, and the data in the existing international literature, to improve the diagnosis and therapeutic management of SURT. The usefulness of both morphological and functional imaging techniques, in particular 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET/CT), is evaluated for use in the management of the severe phenotypes of sarcoidosis such as SURT. Even if guided biopsy remains necessary for confirmation of SURT, medical imaging plays an important role in the management of this disease: CT imaging allows the description of SNS and classification into two stages that correlate well with the severity, reversibility and course of the sino-nasal involvement, 18F-FDG PET/CT, providing a complete morpho-functional mapping of active inflammatory lesions, could be a useful technique in patients with biopsy-proven SURT, for both diagnosis and follow up of medical treatment.
    Full-text · Article · Feb 2011 · Revue des Maladies Respiratoires

Publication Stats

510 Citations
102.89 Total Impact Points

Institutions

  • 2001-2014
    • University of Strasbourg
      • Faculty of Medicine
      Strasburg, Alsace, France
  • 2008-2011
    • CHRU de Strasbourg
      Strasburg, Alsace, France