Synovial sarcoma (SS) is a rare malignant neoplasm that arises most commonly in joint capsules and articular tendons, but its relationship to the synovium is not always obvious. Synovial sarcoma is a malignant soft tissue tumor representing 5.6% to 10% of all soft tissue sarcomas. They are termed SS because of their histologic resemblance to the synovium, but they rarely involve a synovial structure and are thought to arise from pluripotential mesenchymal cells. The tumor usually occurs in close association with tendon sheaths, bursae, and joint capsules, primarily in the para-articular regions of the extremities, with approximately 9% occurring in the head and neck region. Synovial sarcoma has been reported rarely in the oral cavity. We report a very rare case of Synovial sarcoma of the buccal mucosa in a 24-year-old male patient.
Traumatic ulcerative granuloma with stromal eosinophilia (TUGSE) is a slow growing reactive lesion that commonly aff ects the tongue. The pathogenesis of this lesion is obscure. Chronic irritation from traumatic agents is considered to be one of the contributing factors in most of the cases. It usually presents as an ulcer or an indurated submucosal mass. Histopathologically, it is characterized by eosinophilic infl ammatory infi ltrate penetrating into the submucosal layers degenerating the underlying muscle. It is important to recognize this mucosal entity as it has a close resemblance with malignancy of the oral cavity. The pathognomonic feature of TUGSE is that it resolves on its own after excisional biopsy. A 25-year-old Sudanese boy had reported to us with an ulceroproliferative growth in the left side of the mouth.
Summary
A case of aspergillosis is reported in a Brahmini duck (Tadoroma ferruginea), which presented irregular, firm, greyish nodules in the lung tissue. The size of nodules varied from pin head to pea size. Nodules on culture yielded Aspergillus fumigatus. Histopathological study of lung tissues revealed giant cells and granulomatous inflammation in haematoxyline and eosin (H & E) preparation. Periodic acid scruff (PAS) and GOMORI'S GROCOTT methenamine silver (GMS) stain treated sections, showed numerous septate branching fungal mycelia. The relation of this fungus in causation of the disease in birds has been discussed.
Zusammenfassung
Es wird über eine Lungenaspergillose bei einer Brahmini‐Ente (Tadoroma ferruginea) berichtet. Die Lunge des Tieres war durchsetzt mit stecknadelkopf‐ bis erbsengroßen Knoten von grauer Farbe und fester Konsistenz. Die histopathologischen Untersuchun‐gen erbrachten das Vorliegen von Riesenzellen in granulomatösen Entzündungsherden. Mittels PAS‐ und Grocott‐Färbung konnten zahlreiche septierte Pilzhyphen dargestellt werden. Aus den Veränderungen wurde Aspergillus furnigatus angezüchtet. Mögliche Faktoren für das Entstehen von Lungenaspergillosen bei Vögeln werden diskutiert.
Peripheral giant cell granuloma (PGCG) is a reactive entity which is usually benign and manifests exclusively over the alveolar crest or gingiva. The objective of this case report is to illustrate a case of PGCG and to review the possible diff erential diagnoses based on the history elicited by a patient, clinical features and radiological features. The present article reports a case of PGCG evolving from the mandibular alveolar gingiva in a 22-year-old female patient. The lesion was excised surgically and there was no recurrent swelling evident in the biopsied on follow-up. Clinical resemblance of PGCG to pyogenic granuloma, peripheral ossifying fi broma and many other peripheral lesions seen in the oral cavity, necessitates radiologic and histopathologic examinations to aid in the early and accurate diagnosis.
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