scholarly journals An Untypical Case of Gouty Infiltration of Both Peroneal Tendons and a Longitudinal Lesion of the Peroneus Brevis Tendon Mimicking Synovial Sarcoma

2018 ◽  
Vol 2018 ◽  
pp. 1-3 ◽  
Author(s):  
Konstantinos Anagnostakos ◽  
Andreas Thiery ◽  
Christof Meyer ◽  
Octavian Tapos
Keyword(s):  
Synovial Sarcoma ◽  
Histopathological Examination ◽  
Soft Tissue Tumors ◽  
Resonance Imaging ◽  
Open Biopsy ◽  
Tissue Samples ◽  
Peroneal Tendons ◽  
Orthopedic Surgeons ◽  
History Of ◽  
Peroneus Brevis

We present a case of a 70-year-old male patient with an untypical gout infiltration of the peroneal tendons mimicking synovial sarcoma. The patient had a negative history of gout at initial presentation in our department. Magnetic resonance imaging of the region revealed a finding highly suspicious for synovial sarcoma of the peroneal tendons. Open biopsy was performed. Histopathological examination of the tissue samples demonstrated the presence of gout with no signs of malignancy. The gout infiltration was excised in a subsequent surgery. Orthopedic surgeons should be aware of the potential manifestation of gout in tendons and bear this in mind in the differential diagnosis of soft tissue tumors.

scholarly journals Long segment cervicothoracic intramedullary dermoid with concomitant conal lesion – A case report

2020 ◽  
Vol 11 ◽  
pp. 268
Author(s):  
Andrew Aranha ◽  
Pankaj Kumar ◽  
Ajay Choudhary ◽  
Purnima Paliwal
Keyword(s):  
Histopathological Examination ◽  
Case Reports ◽  
Benign Tumors ◽  
Resonance Imaging ◽  
Tumor Capsule ◽  
Neural Tissues ◽  
History Of ◽  
Intramedullary Dermoid Cyst ◽  
Similar Intensity ◽  
Surgical Extirpation

Background: Spinal dermoid cysts are benign tumors that result from congenital or acquired ectodermal inclusions. Long segment intramedullary involvement of the spinal cord is exceedingly rare, and there are only a handful of case reports found in the literature. Case Description: A 30-year-old female presented with a 3-month history of myelopathy characterized by progressive quadriparesis and urinary incontinence. Magnetic resonance imaging revealed multifocal heterogeneous intramedullary masses extending from C2 to T4 and at T12–L1 with similar intensity lesions seen within the central cord from T5 to T11 level. Following tumor decompression, she showed significant improvement in neurological function 1 month later. The histopathological examination confirmed the diagnosis of a multifocal intramedullary dermoid cyst. Conclusion: Partial surgical extirpation is a reasonable treatment for long segment intramedullary dermoid cysts, particularly when the tumor capsule is adherent to critical adjacent neural tissues.

scholarly journals Intracranial subdural osteoma

2020 ◽  
Vol 18 ◽  
pp. 205873922092685
Author(s):  
Yunna Yang ◽  
Zheng Gu ◽  
Yinglun Song
Keyword(s):  
Dura Mater ◽  
Histopathological Examination ◽  
Surgical Excision ◽  
Benign Neoplasms ◽  
Resonance Imaging ◽  
Inner Surface ◽  
History Of ◽  
Magnetic Resonance Imaging Mri ◽  
T1 Hyperintensity ◽  
The Right

Subdural osteomas are extremely rare benign neoplasms. Here, we report the case of a 35-year-old female patient with a right frontal and parietal subdural osteoma. The patient presented with a 2-year history of intermittent headache and fatigue. Computerized tomography (CT) scan showed a high-density lesion attached to the inner surface of the right frontal and parietal skull. Magnetic resonance imaging (MRI) demonstrated T1 hyperintensity and T2 hypointensity of the lesion. Intraoperatively, the hard mass was located in subdural space and attached to the dura mater. Histopathological examination revealed lamellated bony trabeculae lined by osteoblasts and the intertrabecular marrow spaces occupied by adipose tissue. The patient underwent neurosurgical resection and recovered without complication. Surgical excision is recommended to extract the symptomatic lesions with overlying dura mater.

Surgical treatment of a cerebral brain abscess in a cat

2011 ◽  
Vol 24 (01) ◽  
pp. 72-75 ◽  
Author(s):  
M. Beukers ◽  
L. F. H. Theyse ◽  
E. G. H. Wouters
Keyword(s):  
Magnetic Resonance Imaging ◽  
Histopathological Examination ◽  
Resonance Imaging ◽  
Ataxic Gait ◽  
Pupillary Light ◽  
Small Defect ◽  
History Of ◽  
The Right ◽  
Extensive Necrosis ◽  
Temporal Lobe Lesion

SummaryA nine-year-old male castrated European Shorthair cat was presented with a six-day history of progressive depression and ataxic gait. Neurological examination revealed depression, absent menace in the left eye, absent pupillary light reflex in the right eye, anisocoria, circling to the right, and delayed proprioception in all limbs. Magnetic resonance imaging showed a space-occupying right temporal lobe lesion adjacent to a small defect in the temporal bone suggestive of a meningo-encephalitis with concurrent abscess formation. The site was surgically approached by a rostrotentorial craniectomy. A cerebral abscess was found and debrided. Histopathological examination of the removed tissue demonstrated a subacute to chronic purulent encephalitis with extensive necrosis of brain tissue. Neurological symptoms resolved completely within two weeks and full recovery was observed four weeks after surgery.

scholarly journals Fourth Ventricular Schwannoma: Identical Clinicopathologic Features as Schwann Cell-Derived Schwannoma with Unique Etiopathologic Origins

2011 ◽  
Vol 2011 ◽  
pp. 1-4 ◽  
Author(s):  
Tiffany R. Hodges ◽  
Isaac O. Karikari ◽  
Shahid M. Nimjee ◽  
June Tibaleka ◽  
Thomas J. Cummings ◽  
...  
Keyword(s):  
Natural History ◽  
Histopathological Examination ◽  
Resonance Imaging ◽  
Who Grade ◽  
Suboccipital Craniotomy ◽  
Nerve Sheath ◽  
History Of ◽  
Intraventricular Tumors ◽  
Memory Disturbance ◽  
Magnetic Resonance Imaging Mri

Background. To our knowledge, this is the sixth reported case in the literature of fourth ventricular schwannoma. The etiology and natural history of intraventricular schwannomas is not well understood. A thorough review of potential etiopathogenic mechanisms is provided in this case report.Case Description. A 69-year-old man presented with an incidentally found fourth ventricular tumor during an evaluation for generalized weakness, gait instability, and memory disturbance. Magnetic resonance imaging (MRI) revealed a heterogeneously enhancing lesion in the fourth ventricle. A suboccipital craniotomy was performed to resect the lesion. Histopathological examination confirmed the diagnosis of schwannoma (WHO grade I).Conclusions. Schwannomas should be considered in the differential diagnosis of intraventricular tumors. Although the embryologic origins may be different from nerve sheath-derived schwannomas, the histologic, clinical, and natural history appear identical and thus should be managed similarly.

scholarly journals Benign mesenteric lipomatous tumor in a child: a case report and literature review

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Naoki Hashizume ◽  
Takato Aiko ◽  
Suguru Fukahori ◽  
Shinji Ishii ◽  
Nobuyuki Saikusa ◽  
...  
Keyword(s):  
Histopathological Examination ◽  
Abdominal Mass ◽  
Soft Tissue Tumors ◽  
Resonance Imaging ◽  
Case Presentation ◽  
Lipomatous Tumor ◽  
Longitudinal Length ◽  
The Right ◽  
Left Abdomen ◽  
Lipomatous Tumors

Abstract Background Lipomatous tumors are the most common type of soft-tissue tumors. Benign lipomatous tumors are lipomas and lipoblastoma. We herein report a case of benign mesenteric lipomatous tumor and the largest collection of known benign mesenteric lipomatous tumors in children in the literature. Case presentation A 3-year-old girl presented with repeated dull abdominal pain and left abdominal mass swelling. On a physical examination, the child had a soft, moderately distended left abdomen that was not tender when palpated. Computed tomography and magnetic resonance imaging demonstrated a large fatty mass within the mesentery, measuring approximately 8 × 6 cm. The mass extended from the right upper quadrant to the lower pole of the kidneys. Laparotomy with resection of the mesenteric tumor was performed under general anesthesia. A well-capsuled tumor was a soft, yellow mass and found loosely attached to the mesenterium of the ileum. A histopathological examination demonstrated the lobular proliferation of mature adipocytes. Atypical lipoblasts were not seen. These features are compatible with benign lipomatous tumor, such as lipoma or lipoblastoma with maturation. Conclusion In conclusion, benign mesenteric lipomatous tumors tend to be large in size over 10 cm in longitudinal length. However, resection is well tolerated in the vast majority of cases with benign post-operative courses.

scholarly journals Atypical Meningioma in the Medulla Oblongata Parenchyma

2020 ◽  
Author(s):  
Qiushi Xu ◽  
Ziang Pan ◽  
Meidan Hou ◽  
Fang Peng
Keyword(s):  
Magnetic Resonance Imaging ◽  
Medulla Oblongata ◽  
Preoperative Diagnosis ◽  
Histopathological Examination ◽  
Atypical Meningioma ◽  
Resonance Imaging ◽  
Case Presentation ◽  
First Case ◽  
History Of ◽  
Atypical Meningiomas

Abstract Background: Glioma is the most common tumor occurring in the brainstem. A primary intraparenchymal meningioma located in the brainstem without dura attachment is rare. Meanwhile, atypical meningiomas that occur in the medulla oblongata parenchyma, and without dura coverage, are extremely rare. In this study, we report the first case of atypical meningioma in the medulla oblongata parenchyma and review the existing literature.Case presentation: A 38-year-old female was admitted at our hospital with a 2-week history of progressive neck and occipital pain. Magnetic resonance imaging revealed a presence of a 1.5x0.9cm mass lesion, located in the left side of the medulla oblongata, which was hypointense on T1-weighted and hyperintense on T2-weighted images, and with inhomogeneous enhancement following gadolinium-diethylenet-riamine pentaacetic acid (Gd-DTPA) administration. The initial preoperative diagnosis was glioma or angioblastoma. The patient underwent a total surgical resection of the left medulla oblongata tumor and the histopathological examination indicated that the lesion was an atypical meningioma. The patient returned to normal life after surgery.Conclusions: Although glioma is the most common tumor occurring in the brainstem parenchyma, the possibility of meningioma cannot be ruled out in this area.

scholarly journals A CASE OF RARE LARYNGEAL NEUROGENIC TUMOR

2019 ◽  
Vol 72 (7) ◽  
pp. 1413-1414
Author(s):  
Jacek Czubak ◽  
Marcin Frączek ◽  
Krzysztof Morawski
Keyword(s):  
Histopathological Examination ◽  
Specific Treatment ◽  
Resonance Imaging ◽  
Imaging Tool ◽  
History Of ◽  
Submucosal Mass ◽  
Magnetic Resonance Imaging Mri ◽  
X 24 ◽  
Rare Benign Tumour ◽  
Tomography Scan

Laryngeal schwannoma is a rare benign tumour of the larynx. Schwannomas derive from the Schwann cells. Magnetic resonance imaging (MRI) is the best imaging tool for suggesting the diagnosis. We report case of laryngeal schwannoma. The case was a 61-year-old man with a 1-year history of dysphonia and stridor. Laryngoscopy revealed a submucosal mass of the glottic area. A computed tomography scan of the larynx showed an 26(CC) x 18 (TR) x 24 (AP)mm expansile mass in the glottic area. Histopathological examination diagnosed a schwannoma of the larynx. External surgeries were successfully performed. Diagnosis and specific treatment are discussed.

Osteoid Osteoma of the Distal Phalanx of the Ring Finger with Clubbed Finger Deformity: A Case Report

2017 ◽  
Vol 22 (02) ◽  
pp. 248-250 ◽  
Author(s):  
Koichi Horiuchi ◽  
Yukio Horiuchi ◽  
Kensuke Ochi
Keyword(s):  
Osteoid Osteoma ◽  
Chronic Osteomyelitis ◽  
Histopathological Examination ◽  
Ring Finger ◽  
Distal Phalanx ◽  
Resonance Imaging ◽  
Left Handed ◽  
Tumour Removal ◽  
Old Left ◽  
History Of

Osteoid osteoma of the distal phalanx is very rare. We describe a case of osteoid osteoma of the distal phalanx of the ring finger with clubbed finger deformity that improved after tumour removal. A 50-year-old left-handed man presented with a history of right ring finger pain without any trauma. The distal phalanx of the ring finger had tender, redness, and a clubbed finger deformity. Plain radiography indicated a circular radiolucent area in the centre of the lesion. Computed tomography and gadolinium enhanced magnetic resonance imaging indicated presence of a nidus. The lesion was removed via the transungual approach. Histopathological examination confirmed the presence of an osteoid osteoma. His pain was immediately relieved after surgery. At the 2-year followup, he had no pain and the clubbed finger deformity had improved. In cases where clubbed finger deformity involves only one finger, the possibility of chronic osteomyelitis or osteoid osteoma should be considered.

scholarly journals MPC-16 RAPID PROGRESSIVE SPINAL DIFFUSE MIDLINE GLIOMA, A CASE REPORT

2019 ◽  
Vol 1 (Supplement_2) ◽  
pp. ii24-ii25
Author(s):  
Tatsuya Takezaki ◽  
Naoki Shinojima ◽  
Junichiro Kuroda ◽  
Takahiro Yamamoto ◽  
Keishi Makino ◽  
...  
Keyword(s):  
Histopathological Examination ◽  
Lower Limbs ◽  
Intramedullary Tumor ◽  
Resonance Imaging ◽  
Lower Back ◽  
Nuchal Rigidity ◽  
Atypical Cells ◽  
History Of ◽  
Diffuse Midline Glioma ◽  
Spinal Gliomas

Abstract A 17-year-old boy presented with a 2-week history of lower back pain, progressive gait difficulty and sensory deficit of bilateral lower limbs. Magnetic resonance imaging of neuroaxis showed intramedullary tumor with spinal cord expansion from Th12 to L2 and irregular areas of enhancement. Emergent laminoplasty and biopsy was performed. Histopathological examination showed small atypical cells, but most cells had too much degeneration and necrosis to confirm the diagnosis definitively. Leptomeningeal dissemination caused conscious disturbance, nuchal rigidity and epilepsy. 2 weeks after decompression, we performed cordotomy again for advanced diagnosis, to be found diffuse midline glioma, H3K27M mutant by immunohistopathological examination and DAN sequence. He was treated with combination of whole brain and spine radiation therapy and chemotherapy with temozolomide and bevacizumab. He is still alive over 6 months. The clinical significance of H3K27M mutant in spinal gliomas is unclear. Further examinations are needed.

scholarly journals A Case of Actinomycosis in the Rosenmüller’s Fossa

2020 ◽  
pp. 014556132097485
Author(s):  
Takahiro Kusaka ◽  
Shigeru Kuwashima ◽  
Harukazu Hiraumi ◽  
Hiroaki Sato
Keyword(s):  
Magnetic Resonance Imaging ◽  
Infectious Disease ◽  
Magnetic Resonance ◽  
Signal Intensity ◽  
Histopathological Examination ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Actinomyces Species ◽  
History Of ◽  
The Right

Actinomycosis is an infrequent infectious disease caused by Actinomyces species. Actinomycoses in the nasopharynx are extremely rare, especially in the Rosenmüller’s fossa. This report presents a case of actinomycosis in the Rosenmüller’s fossa. A 75-year-old woman presented with a 6-month history of bloody sputum. A grayish-white caseous tissue was found in the right Rosenmüller’s fossa after retracting the torus tubarius. Magnetic resonance imaging showed a well-defined lesion with low-signal intensity on T1- and T2-weighted images; small low-signal areas were interspersed inside. The lesion was removed under an endoscope. Histopathological examination revealed eosinophilic, club-shaped structures surrounding a hematoxylophilic center, leading to the diagnosis of actinomycosis. The symptoms improved after 3 months of amoxicillin administration but recurred quickly. After 6 months of amoxicillin administration, the bloody sputum disappeared, and local and imaging findings were normal.

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