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PubMed | Govind Vallabh Pant Hospital, Maulana Azad Institute of Dental science and Medicity
Type: Journal Article | Journal: Journal of Indian Society of Periodontology | Year: 2014

Plasma cell mucositis (PCM) is a very rare, chronic, multifocal, idiopathic, non-neoplastic plasma cell proliferative disorder of the upper aerodigestive tract. The classic clinical presentation is an intensely erythematous mucosa with surface changes described variously as papillomatous, cobblestone, nodular or velvety. It is a very rare condition <50 cases reported in literature. A 72-year-old male patient complained of sore throat, stomatodynia, dysphagia, multiple oral ulcers, enlarged swollen bleeding gums and mobile teeth. There was chronic inflammatory enlargement of the gingiva and palate with severe periodontitis. Histopathological examination revealed a hyperplastic epithelium with a dense infiltrate of mature polyclonal plasma cells in the superficial layer of the lamina propria. PCM is a diagnosis of exclusion, to be differentiated from other infective, reactive, autoimmune, allergic and neoplastic disorders with plasma cell infiltrates. Management with surgical and immunosuppressive therapy is mostly ineffective with short remissions and frequent relapses.

PubMed | Govind Vallabh Pant Hospital and Maulana Azad Institute of Dental science
Type: Journal Article | Journal: Journal of maxillofacial and oral surgery | Year: 2015

Extraskeletal mesenchymal chondrosarcoma (EMCS) is a rare and aggressive pathological variant of chondrosarcoma arising from soft tissues of mainly the extremities, meninges/dura, trunk, and orbits. EMCS comprises only 2% of all soft tissue sarcomas and only 6% of them arise from soft tissue in the head and neck region. It usually affects in the second and third decade of life and is common in women. It runs a very rapid clinical course with distant metastases and has poor prognosis and survival rates. Histologically it has a dimorphic presentation of small round mesenchymal cells interspersed with foci of cartilaginous differentiation. Radiographically it appears as a soft tissue lobulated mass with various patterns of calcification. This is the first case of primary and recurrent EMCS originating in the buccal space with unusual features of dedifferentiation. The diagnostic challenges in this case were the inconclusive FNAC results, lack of radiographic evidence of characteristic calcifications and presence of areas of myxoid material and dedifferentiation on histopathology. The clinical, cytological, histological, immunohistochemical, radiographic, PET-CT findings and management with review of literature is presented. The diagnostic and management pitfalls of this extremely rare tumor are also discussed.

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