statement of problem: primary teeth discoloration can cause mentally and socially unpleasant effects in children. this can also be a sign of systemic disease. despite the importance of this subject, a comprehensive study has not been performed yet. purpose: the aim of this study was determining the frequency of different types of primary teeth discoloration. materials and methods: in this cross...

Keratocystic odontogenic tumor (KCOT) is a benign intraosseous neoplasm of the jaw occurring most commonly in mandibular ramus molar area with male predilection. Peripheral KCOTs are very uncommon. Here we report a case of keratocyst in buccal mucosa in a 55 years old female patient, the diagnosis of which was based on subjective histological evaluation and further confirmed by immunohistochemi...

This communication reports the use of Congo red to stain the nanofibers of self-assembled small molecules for assaying intracellular supramolecular hydrogels, which provides a convenient method to explore molecular self-assembly inside cells.

To obtain as much information as possible from light-microscopy about changes in the glomerular basement-membrane, a thin section microtome attachment is necessary in order to produce 1 to 3 micron sections. The most informative staining method of paraffin embedded tissue is the Muller-Mowry-Masson trichrome (M-M-M) combination stain. The deposits, e.g., in systemic lupus erythematosus (SLE), s...

Picrosirius red (PSR) staining is a commonly used histological technique to visualize collagen in paraffin-embedded tissue sections. PSR stained collagen appears red in light microscopy. However it is largely unknown that PSR stained collagen also shows a red fluorescence, whereas live cells have a distinct green autofluorescence. Both emission patterns can be detected using standard filter set...

In fictional murder mysteries the person responsible for the crime is often the one least likely to be involved. In contrast, in real life, the culprit is usually the most obvious candidate right from the start. In this particular case, the myocardial collagen matrix is the suspect (and as I shall illustrate, a likely culprit) responsible for at least some of the complications that occur after ...

background: tumor associated tissue eosinophilia is believed to play a significant role in the biological behavior of the carcinoma. eosinophil infiltrate in association with the head and neck squamous cell carcinoma (scc) have been reviewed from time-to-time. the significance of such an association has been variably thought to be either a potential diagnostic tool for stromal invasion or as a ...