scholarly journals Extraskeletal Chondroma of the Preauricular Region: A Case Report and Literature Review

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Futoshi Watanabe ◽  
Tadahiko Saiki ◽  
Yoshihisa Ochochi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Differential Diagnosis ◽  
Rare Case ◽  
Clinical Characteristics ◽  
Hyaline Cartilage ◽  
Surrounding Tissue ◽  
Resonance Imaging ◽  
En Bloc ◽  
Cartilaginous Tumor ◽  
The Right

An extraskeletal chondroma is a rare benign cartilaginous tumor that develops in soft tissue. Histologically, it is a lobulated nodule surrounded by a fibrous capsule; the inside consists of mature hyaline cartilage containing a few normal chondrocytes. We present a rare case of extraskeletal chondroma in the preauricular region. A 43-year-old man presented with a 2-cm-diameter right preauricular tumor that had been developing for 1 year. Magnetic resonance imaging showed a solid lobulated tumor in the right preauricular region, which was proximate to the capsule of the right temporomandibular joint (TMJ). This was subsequently resected under general anesthesia. The tumor was not in contact with the TMJ capsule and had not invaded the surrounding tissue, facilitatingen blocexcision. Histopathologically, the tumor comprised mainly of hyaline cartilage containing chondrocytes with chondrocytic lacunae and was diagnosed as a chondroma. The postoperative period was uneventful, and there was no evidence of recurrence at the 2-year followup. We describe the clinical characteristics of our case and review the literature, emphasizing the differential diagnosis.

scholarly journals An extremely rare case of desmoplastic fibroblastoma exhibiting rapid growth in the chest wall: a case report

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Hideki Ota ◽  
Hirotaka Ishida ◽  
Hidekazu Matsumoto ◽  
Tomoharu Ishiyama
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Differential Diagnosis ◽  
Magnetic Resonance ◽  
Chest Wall ◽  
Rare Case ◽  
Resonance Imaging ◽  
Marginal Excision ◽  
Desmoplastic Fibroblastoma ◽  
The Right

Abstract Background Desmoplastic fibroblastoma is an uncommon, benign, fibrous tumor exhibiting infiltrative growth. Most of these tumors are small, slow-growing, and develop as subcutaneous lesions in the extremities. Cases of desmoplastic fibroblastoma in the chest wall are quite rare, and the preoperative diagnosis of such cases remains challenging as these tumors can mimic the characteristics of desmoid-type fibromatosis, which often occurs in the chest wall. We aimed to describe a rare case of desmoplastic fibroblastoma exhibiting rapid growth in the chest wall of a patient that was successfully treated with marginal excision only by diagnostic imaging before surgery. Case presentation A 79-year-old man was admitted to our hospital after experiencing right shoulder pain lasting for a few months. A 4 × 4 × 2 cm mass was incidentally detected at the right second rib two years prior. Chest computed tomography revealed a well-defined homogeneous mass with a muscle-like density along the right lateral chest wall, the size of which had increased to 12 × 10 × 4.5 cm in two years. Dynamic contrast-enhanced computed tomography revealed abundant vascularity at the periphery of the tumor. Magnetic resonance imaging revealed iso-intensity to muscle on T1-weighted images, slightly high intensity on T2-weighted images, and rim-like contrast enhancement at the periphery of the tumor, with uniform thickness on gadolinium-enhanced T1-weighted images with fat suppression. Rim-like contrast enhancement is an imaging feature that can distinguish cases of desmoplastic fibroblastoma from desmoid-type fibromatosis. We diagnosed the tumor as desmoplastic fibroblastoma by diagnostic imaging without tissue biopsy. Marginal excision with videoscopic assistance was performed through a small incision. The pathological diagnosis was desmoplastic fibroblastoma. The patient’s postoperative course was uneventful, and his shoulder pain was relieved after the surgery. Conclusions Desmoplastic fibroblastoma in the chest wall is extremely rare, but should be considered in the differential diagnosis when desmoid-type fibromatosis is clinically suspected. Gadolinium-enhanced magnetic resonance imaging is helpful in confirming the differential diagnosis.

Surgical Management of the Peroneus Quartus Muscle for Bilateral Ankle Pain

2015 ◽  
Vol 105 (1) ◽  
pp. 85-91 ◽  
Author(s):  
Nobuaki Chinzei ◽  
Noriyuki Kanzaki ◽  
Yoshinori Takakura ◽  
Yoshiyuki Takakura ◽  
Akihiko Toda ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Differential Diagnosis ◽  
Rare Case ◽  
Lateral Compartment ◽  
Lower Leg ◽  
Foot And Ankle ◽  
Resonance Imaging ◽  
Ankle Pain ◽  
Accessory Muscle ◽  
Muscle Magnetic Resonance Imaging

The peroneus quartus muscle is an accessory muscle seen in the lateral compartment of the lower leg. Although the peroneus quartus muscle is asymptomatic in general, it sometimes becomes pathologic. We present the rare case of bilateral ankle pain with crepitation caused by the peroneus quartus muscle. Magnetic resonance imaging should be considered to assist with diagnosing this condition. Foot and ankle surgeons should consider it in the preoperative differential diagnosis when patients present with posterior ankle pain.

scholarly journals Duplication and Multiseptate Urinary Bladder: A Rare Case Report

2021 ◽  
Vol 57 (3) ◽  
pp. 267
Author(s):  
Muhammad Fawzi Zulfikar ◽  
Wahjoe Djatisoesanto ◽  
Tarmono Tarmono
Keyword(s):  
Magnetic Resonance Imaging ◽  
Pediatric Surgery ◽  
Rare Case ◽  
Congenital Abnormalities ◽  
Urinary Tract Obstruction ◽  
Resonance Imaging ◽  
Rare Case Report ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
Surgery Department

The multiseptate bladder is a congenital bladder anomaly that is very rare and often accompanied by other congenital abnormalities. This condition could result in intravesical obstruction and kidney failure in more serious conditions. A 3-year-old girl without any complaint was consulted by the Pediatric Surgery Department with postoperative cloacal type malformation anorectal (MAR) postero-sagittal anorecto-vagino-urethroplasty (PSARVUP) + sigmoidectomy. Magnetic Resonance Imaging (MRI) of the pelvis showed the appearance of four interconnected multiple fluid lesions. Cystoscopy was performed and found many septa with varied positions and forms. From the cystography during the operation, it was seen duplication of the right and left bladder. There was no further operative treatment in the field of urology because no urinary tract obstruction and normal renal function were found in this study.

scholarly journals Lymphoepithelial Cyst in the Palatine Tonsil

2016 ◽  
Vol 2016 ◽  
pp. 1-3 ◽  
Author(s):  
Fatih Bingöl ◽  
Hilal Balta ◽  
Buket Özel Bingöl ◽  
Recai Muhammet Mazlumoğlu ◽  
Korhan Kılıç
Keyword(s):  
Magnetic Resonance Imaging ◽  
Rare Case ◽  
Histopathological Examination ◽  
Cystic Mass ◽  
Palatine Tonsil ◽  
Lateral Part ◽  
Lymphoepithelial Cyst ◽  
Resonance Imaging ◽  
Tonsil Surgery ◽  
The Right

Lymphoepithelial cyst (LEC) is the most commonly encountered congenital neck pathology in the lateral part of the neck. A 66-year-old woman presented to the ENT clinic due to difficulty in swallowing persisting for approximately 1 year. Magnetic resonance imaging revealed a cystic mass at right tonsil. Surgery was performed due to this unilateral tonsillar mass, which was excised together with the right tonsil. LEC was diagnosed at histopathological examination. LEC in the palatine tonsil is rare, and only a few cases have been reported in the literature. We report a rare case of LEC in the palatine tonsil.

Radiolucent Osteoma of the Skull: Case Report

Neurosurgery ◽  
1991 ◽  
Vol 29 (5) ◽  
pp. 776-778 ◽  
Author(s):  
Yasushi Shibata ◽  
Yoshihiko Yoshii ◽  
Atsuro Tsukada ◽  
Tadao Nose
Keyword(s):  
Magnetic Resonance Imaging ◽  
Differential Diagnosis ◽  
Case Report ◽  
Magnetic Resonance ◽  
Bone Tumors ◽  
Rare Case ◽  
Imaging Findings ◽  
Pathological Findings ◽  
Resonance Imaging ◽  
Skull Tumor

Abstract A rare case of a radiolucent osteoma of the skull is reported. The radiological and pathological findings of this lesion, including magnetic resonance imaging findings, are presented, and the efficacy of magnetic resonance imaging for the diagnosis of this skull tumor is evaluated. The differential diagnosis of radiolucent bone tumors is discussed.

scholarly journals Intranodal capillary-cavernous hemangioma: Report of a very rare case

2019 ◽  
Vol 7 ◽  
pp. 2050313X1984671
Author(s):  
Jérôme Tessieras ◽  
Jinane Chenaye ◽  
Christophe Senechaud ◽  
Yara Banz
Keyword(s):  
Magnetic Resonance Imaging ◽  
Endothelial Cells ◽  
Differential Diagnosis ◽  
Magnetic Resonance ◽  
Cavernous Hemangioma ◽  
Rare Case ◽  
Mixed Type ◽  
Vascular Anomaly ◽  
Vascular Lesion ◽  
Resonance Imaging

Mixed type capillary-cavernous hemangioma is a rare vascular anomaly, with an intranodal localization being extremely rare. Its finding is often accidental but may be clinically symptomatic. The diagnosis relies on histopathology, showing a proliferation of capillaries and cavernous vessels filled with erythrocytes and lined by endothelial cells. Magnetic resonance imaging with enhanced and T2 STIR sequences is the most efficient imaging for diagnosing this type of hemangioma. Rarely, malignancy or another vascular lesion can be evoked as a differential diagnosis of mixed hemangioma. Treatment in this localization is often surgical, even if other possibilities exist for other areas. In this article, we describe a very rare case of intranodal capillary-cavernous hemangioma.

scholarly journals A Rare Case of Radiculopathy: Monostotic Fibrous Dysplasia of the Sacrum

2019 ◽  
Vol 32 (6) ◽  
pp. 466
Author(s):  
Joaquim Cruz Teixeira ◽  
Diogo Cardoso Simão ◽  
José Pimentel ◽  
Sérgio Livraghi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Fibrous Dysplasia ◽  
Rare Case ◽  
Low Back ◽  
Rare Entity ◽  
Resonance Imaging ◽  
Computed Tomography Scan ◽  
Medullary Bone ◽  
The Right ◽  
Tomography Scan

Fibrous dysplasia is a bone disease characterized by an osteoblastic dysfunction resulting in a fibrous replacement of the normal medullary bone. We describe the case of a 33-year-old who presented with low back pain irradiating to her right leg. Both the computed tomography scan and magnetic resonance imaging showed an osteolytic, multicystic lesion of the right hemi-sacrum with invasion of the right S1 foramen. She underwent foraminotomy and curettage of the lesion. Histological diagnosis was fibrous dysplasia, without features of malignant transformation. Three years after surgery the patient is asymptomatic and imaging is stable. This is the fifth known case of monostotic fibrous dysplasia involving the sacrum, a rare entity that must be considered in the differential diagnosis when approaching patients with sacral lesions.

scholarly journals Case Report: Incidentally diagnosed hemangioma of the right atrioventricular groove in an athlete

F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 1080
Author(s):  
Asma Achour ◽  
Mezri Maatouk ◽  
Ahmed Miladi ◽  
Marouane Mahjoub ◽  
Mabrouk Abdelali ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Case Report ◽  
Rare Case ◽  
Surgical Excision ◽  
Resonance Imaging ◽  
Atrioventricular Groove ◽  
Incidental Discovery ◽  
Magnetic Resonance Imaging Mri ◽  
The Right

The purpose of this article is to illustrate a rare case of a pericardial hemangioma of the right atrioventricular groove of incidental discovery in a tennis player who presented with cough and dyspnea and was treated by surgical excision with a favorable outcome. We also report the role of cardiac magnetic resonance imaging (MRI) in the diagnosis and management of this pericardial tumor.

scholarly journals Right Trigonal Cavernoma with Cysts and Superficial Siderosis

2021 ◽  
Author(s):  
Dinesh Niti ◽  
Krishnan Nagarajan ◽  
Mani Manoranjitha Kumari ◽  
Lalith Kumar Balla ◽  
Sushila Chauhan
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Lateral Ventricle ◽  
Rare Case ◽  
Superficial Siderosis ◽  
Susceptibility Weighted Imaging ◽  
Review Of The Literature ◽  
Resonance Imaging ◽  
The Right

AbstractPeriventricular cavernomas presenting with hydrocephalus and superficial siderosis are uncommon lesions. We report a rare case of one such periventricular cavernoma located in the peritrigonal location of the right lateral ventricle in a 26-year-old male who presented with progressive headache for 3 months. Magnetic resonance imaging showed heterogeneous lesion with “blooming” on susceptibility-weighted imaging and superficial siderosis due to repeated microhemorrhages. The lesion was resected and found histopathologically to be cavernoma. We present this uncommon lesion with a review of the literature.

scholarly journals A Case Report on Parathyroid Carcinoma - an Extremely Rare Endocrine Malignancy

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. A986-A987
Author(s):  
Shobha Mandal ◽  
Mary Grace Bethala ◽  
Barbara MolsKowalczewski
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Case Report ◽  
Magnetic Resonance ◽  
Parathyroid Carcinoma ◽  
Whole Body ◽  
Resonance Imaging ◽  
En Bloc ◽  
Neck Ultrasound ◽  
The Right

Abstract Background: Parathyroid carcinoma is an extremely rare endocrine malignancy with a prevalence of &It 1%. It is associated with hyperparathyroidism-jaw tumor syndrome (HJTS), multiple endocrine neoplasia (MEN) type 1 or 2A syndromes, secondary hyperparathyroidism, and chronic kidney disease. Incidence is equal in both men and women. Patients may present with symptoms of hypercalcemia, and should be further worked up with neck ultrasound, Tc-99m sestamibi imaging, single-photon emission computed tomography, magnetic resonance imaging, positron emission tomography combined with CT scan, and biopsy of the parathyroid mass. Parathyroid carcinoma can be treated surgically with complete resection. Patients treated with En-bloc resection with microscopically negative margins remain cancer-free for at least three years to a maximum of twenty years. Case Report: A 50-year-old female treated with laparoscopic sleeve gastrectomy for morbid obesity, came for the follow-up visit. She denied any active complaint. Routine Lab work showed mild hypercalcemia, hypophosphatemia, elevated PTH, and alkaline phosphatase. Neck ultrasound showed a cystic lesion adjacent to the right thyroid lobe. Sestamibi (MIBI) parathyroid scintigraphy showed increased radiopharmaceutical uptake by the right superior parathyroid gland without any enlarged or suspicious lymph nodes. Dexa scan was positive for osteopenia. The patient underwent right superior parathyroidectomy along with en-bloc right thyroid lobectomy. Histological examination revealed anaplastic regions, giant cells with abundant cytoplasm, and polymorphous nuclei with a Ki-67 labeling index of 10% consistent with parathyroid carcinoma. Post-surgery imaging with ultrasound and magnetic resonance imaging of the neck computed tomography of the chest, and abdomen, whole-body MIBI scintigraphy was negative for residuals or metastatic disease. She was started on oral calcium carbonate and was monitored regularly with routine lab work. The most recent lab work was within normal limits. Conclusion: Most of the patients with parathyroid carcinoma present in the early stage with the symptoms of hypercalcemia. Many of them do not have symptoms of mass or tumor effects. Parathyroid cancer is a rare malignancy and can be missed, therefore all patients with hypercalcemia should be further evaluated with lab work, imaging, and biopsy to rule out parathyroid carcinoma. Early diagnosis and treatment have a better outcome.

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