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Search Results: 1 - 10 of 2260 matches for " Osseous differentiation "
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Malignant melanoma with osteocartilaginous differentiation
Sundersingh Shirley,Majhi Urmila,Murhekar Kanchan,Krishnamurthy Radha
Indian Journal of Pathology and Microbiology , 2010,
Abstract: We report a case of acral lentiginous melanoma on the plantar aspect of foot in a 50-year-old male that exhibited a prominent osteo-cartilaginous differentiation in the metastatic inguinal lymph node. The ability of melanomas to undergo multidirectional differentiation leads to a variety of histological appearances that can be misleading. Although the true nature of the tumor is most often recognized at the primary cutaneous site, metastatic tumors may closely mimic other malignant mesenchymal or neuro-ectodermal tumors. Hence awareness of this unusual phenomenon occurring in malignant melanoma is essential to avoid misdiagnosis.
Osseous differentiation in cystosarcoma phyllodes - diagnosed by fine needle aspiration cytology
Krishnamurthy Jayashree
Journal of Cytology , 2010,
Abstract: Osseous differentiation within a phyllodes tumor is extremely rare. Cytological and histological findings of a case of malignant phyllodes tumor with osseous differentiation are presented. A 45-year-old female had a malignant phyllodes tumor with osseous stroma diagnosed by fine needle aspiration cytology. The cytological findings were representative of the histological features. The diagnosis of these tumors preoperatively is important in planning the most appropriate treatment. It is also important to follow up these patients postoperatively for long periods for recurrence and metastasis.
Treatment of Craniomaxillofacial Fibrous Dysplasia  [PDF]
Takayuki Okumoto, Masaki Yazawa, Yoshikazu Inoue, Kazuo Kishi
Surgical Science (SS) , 2015, DOI: 10.4236/ss.2015.66036
Abstract: Fibrous dysplasia is a benign osseous disease, although radical resection is commonly recommended because of the possibility of recurrence or malignant change. However, radical resection is undesirable, particularly in the maxillofacial region, because facial bones are difficult to replace in an aesthetically-pleasing manner after radical excision. In our department, conservative shaving, as reported by Chen and Noordhoff, is used to reduce tumor volume while maintaining facial aesthetics that are as normal as possible. We have experienced eight cases of craniomaxillofacial fibrous dysplasia and successfully applied conservative shaving to the maxillofacial lesions. These cases have exhibited no recurrence, and their facial contours have improved remarkably.
Unusual Presentation of Endometrial Cancer: A Clinicopathological Study of One Case  [PDF]
J. Munné, F. Alameda, A. Bergueiro, G. Mancebo, L. Garrigós, T. Baró, B. Lloveras, J. Gimeno, R. Carreras, S. Serrano
Open Journal of Obstetrics and Gynecology (OJOG) , 2015, DOI: 10.4236/ojog.2015.51004

Endometrial carcinoma is the most frequent genital tract malignancy. The first symptom (guide-symptom) is usually metrorrhagia; however, in around 10% of cases it is not. In contrast, osseous metastases are infrequent in endometrial cancer. The bones of the pelvis and lower extremities are those most frequently involved in disseminated metastatic diseases. In these cases, endometrial cancer is usually high grade (Grade III). Case report: 56-year-old woman who presented right inguinal pain. The X-ray showed a lithic lesion in the right ischium. A histopathological study demonstrated a metastatic lesion, suspected to be endometrial cancer. The computer tomography scan revealed a uterine mass and a second lithic lesion in the right tibia. The patient received chemotherapy (carboplatin and paclitaxel), and the bone lesions were irradiated. The patient is still alive 18 months after the diagnosis. This case emphasizes the importance of considering an endometrial primary tumor when evaluating bone metastasis of unknown primary cancer.

Focal cemento-osseous dysplasia: a case report and literature review  [PDF]
Duygu Yazicioglu, Aysegul Mine Tuzuner-Oncul, Cahit Ucok, Omur Dereci
Health (Health) , 2010, DOI: 10.4236/health.2010.28139
Abstract: Objective and Case Report: In this report a female patient with the lesion diagnosed as focal semento-osseous dysplasia by histolog- ical and radiological examination on the left mandibular molar region is presented and these focal semento-osseous dysplasia lesions are reviewed according to the literature. Conclusion: Histological and radiographic examination is significant for the differential diagnosis of FCOD. Its solid nature and posterior localization ease the differential diagnosis. The treatment includes long term follow-up for asymptomatic lesions or surgical excision if a dental implant rehabilitation is planned for the affected partial edentulous region of jaw, as seen in this case.
Osseous Metaplasia Leading to Traction Retinal Detachment in the Nonphthisical Eye of Young Boy with Cytomegalovirus Retinitis  [PDF]
Gurunadh Atmaram Vemulakonda, Joshua A. Sonnen
Advances in Infectious Diseases (AID) , 2013, DOI: 10.4236/aid.2013.32019

Title: Osseous Metaplasia Leading to Traction Retinal Detachment in the nonphthisical eye of Young Boy with Cytomegalovirus Retinitis. Purpose: To report a case of intraocular bone formation in an 11-year-old boy with a history cytomegalovirus (CMV) retinitis secondary to immunosuppression following Bone Marrow Transplantation due to hyper Immunoglobulin G (IgG) syndrome. Methods: An 11-year-old male presented with decreased vision in his better seeing eye. Clinical examination and Bscan ultrasound discovered a tractional retinal detachment with a large subretinal lesion. The patient was taken for surgical intervention. Results: The subretinal lesion was removed during surgery, and histopathologic evaluation revealed mature lamellar bone. Conclusion: This case shows that mature intraocular bone can be associated with tractional retinal detachment in a nonphthisical eye.

Ewings Sarcoma-Primitive Neuroectodermal Tumour-Rare Extraosseous Presentation  [PDF]
Arcot Rekha, Prabhu Purushothaman, Rufus Ranjitsingh Edwin, Anukiran Ravichandran
Case Reports in Clinical Medicine (CRCM) , 2016, DOI: 10.4236/crcm.2016.53017
Abstract: Introduction: Ewings sarcoma is uncommon in extra osseous locations. They belong to Ewings family of tumours and the primitive neuroectodermal tumour is often diagnosed based on immuno histochemistry and molecular genetic studies. Discussion: A 50-year-old gentleman presented with complaints of a swelling in the right thigh. With a diagnosis of soft tissue sarcoma, the patient underwent a wide local excision of the tumour. We review literature of the small round blue cell tumour. Conclusion: Extraosseous Ewings sarcoma presenting as a thigh swelling is uncommon. The sarcoma was vimentin positive and CD99 membrane positivity.
Osseous Dysplasia Secondary Infection: A Case Report  [PDF]
Paul Niang, Abdou Ba, Babacar Tamba, Alpha Kounta, Mamadou Diatta
Surgical Science (SS) , 2018, DOI: 10.4236/ss.2018.93011
Abstract: Introduction: Osseous dysplasia is a benign tumor of the jaws predominantly occurring in melanoderm women. The pathogenesis remains unknown. Its often fortuitous discovery usually is in the fourth decade of life. Its treatment involves surgery. Our aim was to report a case of osseous dysplasia secondary infection in Senegal. Observation: The over sixty-year-old patient initially came for recurring old suppuration. A prior history of dental avulsions and self-medication was found out. The clinical features were predominant chronic osteitic manifestations. Its radiologic presentation suggested a florid form. The combination of spiramycin-metronidazole had to be given twice. The isolated sequestrum was enucleated and the anatomopathology confirmed the diagnostics. Discussion: The patient’s age conformed to late discovery due to silent progression and poor access to medical care. The prior iatrogenic avulsions can be explained by the absence of systematic radiological exploration and by the unawareness of the inconspicuous tumor. The clinical and radiological features at this stage of the osseous dysplasia secondary infection were typical. The treatment and the follow-up were dependent on the prevailing work conditions. Conclusion: The chronic osteitic manifestations are indicative of osseous dysplasia in elderly women in Senegal.
Análisis del uso de los osteodilatadores para la creación del lecho implantológico: Aportaciones técnicas y revisión de la literatura
Rambla Ferrer,Javier; Pe?arrocha Diago,Miguel; Guarinos Carbó,Juan;
Medicina Oral, Patología Oral y Cirugía Bucal (Internet) , 2006,
Abstract: sometimes, the severe superior maxillary atrophy compromises and even impide oral implants treatment. the use of rotatory instruments (drills) produce heat and lost of bone, but the osteotomes in implantology avoid this and simplifies the surgical treatment allowing implant installation with an easier technique. we present an expansive maxillary technique review, describing the main indications, advantages and disadvantages of this surgical procedure.
Recuperación ósea en Procedimientos de Reconstrucción y Colocación de Implantes
Olate,Sergio; de Oliveira,Greison Rabelo; Jaimes,Miguel; Barbosa,Jose Ricardo de Albergaria-;
International Journal of Morphology , 2007, DOI: 10.4067/S0717-95022007000300030
Abstract: implantology had experienced a rapid evolution in the last 30 years and the use of biomaterials on tissue recuperation has been more frequent; for this reason it is necessary to know the repaired process and histological reaction between the hosted tissue and the biomaterials, thereby determining the success of the therapy in the long time. clinically, it has been to possible to see the effects of different biomaterials, but after an histological analyses, has been demonstrated some variations that make them unaccepted for dental treatment. the aim of this review is to report the way of the bone cicatrisation with different biomaterials and the form in which it is developed this cicatrisation on the rehabilitation with implants with different load protocols
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