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Sanjiv Jain

Publications and source records attributed to Sanjiv Jain.

10 recordsLinked to original sources
PubMed2005

Superficial cervico-vaginal myofibroblastoma: a report of five cases.

AIMS: To describe the pathological and immunohistochemical features of five cases of superficial cervico-vaginal myofibroblastoma (SCVM), a recently described mesenchymal tumour affecting middle-aged and elderly females. METHODS: The histological features of five cases of SCVM arising in four patients were reviewed including one case which recurred locally 9 years after initial excision biopsy. All cases were immunostained using the streptavidin-biotin technique using antisera to vimentin, smooth muscle actin, desmin, S100 protein, cytokeratin, h-caldesmon, calponin, CD99, CD117 (c-kit), bcl-2, oestrogen receptor and progesterone receptor. RESULTS: The patients were aged from 40 to 71 years (mean 55.2 years). The tumours were situated within the vagina (four cases) and cervix (one case) and ranged from 16 to 45 mm in greatest dimension. One patient had two separate vaginal SCVM. The tumours were characterised by uniform spindle and stellate-shaped cells separated by a collagenous or myxoid stroma. No mitotic activity was identified. Characteristically the tumours were well circumscribed and separated from the surface epithelium by a rim of normal stroma. The initial and recurrent tumours in one patient were similar except for increased stromal collagen in the recurrence. All tumours were immunoreactive for vimentin, desmin, CD34, CD99, bcl-2, calponin and hormone receptors while two tumours showed focal smooth muscle actin expression. There was no expression of S100 protein, h-caldesmon, CD117 or cytokeratin. CONCLUSIONS: SCVM appears to be a relatively distinct lesion although there is some histological and immunophenotypical overlap with other mesenchymal tumours, particularly fibroepithelial polyp, leiomyoma and solitary fibrous tumour. As local recurrence developed 9 years after intial treatment in one patient, long-term clinical follow-up would seem appropriate.

Adult↗
PubMed2004

Alexander technique and Feldenkrais method: a critical overview.

This article develops an overall better understanding of the Alexander technique and Feldenkrais method. Initially, a brief history is provided to lay the groundwork for the development of these techniques. A description of the techniques, training requirements, and mechanism of action follows. Indications, contraindications, and patient selection are discussed. This article reviews and identifies what research has been completed and what areas need further investigation. Overall, the goal is to establish a guide to aid in determining who may benefit from these techniques and outcomes to expect when using these techniques.

Awareness↗
PubMed2004

Spitz naevus: diagnostic problems and their management implications.

Spitz naevus is an uncommon, benign melanocytic neoplasm that shares many clinical and histological features with melanoma. While Spitz naevi typically occur in children and melanomas typically occur in adults, either tumour can occur in a patient of any age. In cases displaying all or most of the classical histological features, particularly when occurring in a young patient, it is possible to make a confident diagnosis of Spitz naevus. However, for those lesions with atypical features it may be difficult to predict the biological behaviour with certainty from the histopathological appearance. Hence, such tumours have been referred to by a variety of names including atypical Spitz naevus, atypical Spitz tumour and spitzoid tumours of uncertain malignant potential. However, even acknowledged experts in dermatopathology have a low concordance in distinguishing Spitz naevus with atypical features from melanoma. In this article, we highlight the histopathological features of Spitz naevi and those that may be useful in distinguishing Spitz naevi from melanomas. A suggested practical guide to clinical management of such lesions is provided.

Adult↗
PubMed2003

Ultrastructural changes in hepatic sinusoidal endothelial cells acutely exposed to colloidal iron.

Hepatic sinusoidal endothelial cells form an important interface between the vascular system, represented by the sinusoids, and the space of Disse that surrounds the hepatocyte microvilli. This study aimed to assess the light microscopic and ultrastructural effects of acute exposure of hepatic sinusoidal endothelial cells to colloidal iron by injection of rats with iron polymaltose. Eight minutes after a single intravenous injection of iron polymaltose sinusoidal endothelial cells showed defenestration, and thickening and layering as assessed by transmission electron microscopy. Kupffer cells and stellate cells appeared activated. These changes were not observed in control animals, experiments using equivalent doses of maltose, or experiments using colloidal carbon except for Kupffer cell activation due to colloidal carbon. No significant light microscopic changes were seen in study or control animals. The findings indicate that acute exposure to colloidal iron causes changes in hepatic sinusoidal endothelial cells, stellate cells and Kupffer cells. This may be the result of a direct toxic effect of iron or increased production of reactive oxygen species. These observations suggest a possible mechanism for defenestration of sinusoidal endothelial cells in ageing and in disease states.

Animals↗
PubMed2002

A comparison of the antemortem clinical diagnosis and autopsy findings for patients who die in the emergency department.

OBJECTIVES: In spite of advances in medical technology, there remains a high discrepancy rate between the antemortem clinical diagnosis and postmortem examination diagnosis for patients who die in hospitals. The aim of this study was to compare the clinical and postmortem examination diagnoses of patients who died in the emergency department (ED) of a tertiary hospital, and to analyze any discrepancy between them. METHODS: The study was a retrospective chart review of patients who died in the ED of a tertiary referral teaching hospital and a comparison of the antemortem diagnosis with the autopsy diagnosis. Any missed diagnosis was classified, according to the Goldman criteria, into major and minor missed diagnoses. RESULTS: A total of 59 patients were eligible for inclusion in the study. There was complete agreement between the antemortem diagnosis and the autopsy result in 51% of cases. The incidence of major missed diagnoses-where if the diagnosis had been known before the patient died, treatment may have been altered or survival may have been prolonged-was 7%. CONCLUSIONS: There is a significant discrepancy rate between the antemortem diagnosis and the autopsy diagnosis. However, in this study, serious missed diagnoses in which outcome may have been significantly altered are unusual among those who die in the ED of a tertiary referral hospital.

Australian Capital Territory↗