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denotes a purple color Greek πορφύρα (porphúra), Tyrian purple, royal purple porphyroblast: post-denotes something as 'after (time)' or 'behind (space)' another Latin post, after, behind postoperation, postmortem: pre-denotes something as 'before' another (in [physical] position or time)
Cherry angioma, also called cherry hemangioma [1] or Campbell de Morgan Spot, [2] is a small bright red dome-shaped bump on the skin. [3] It ranges between 0.5 – 6 mm in diameter and usually several are present, typically on the chest and arms, and increasing in number with age. [3] [4] If scratched, they may bleed. [5]
The H&E staining procedure is the principal stain in histology [3] [7] [2] [5] in part because it can be done quickly, [7] is not expensive, and stains tissues in such a way that a considerable amount of microscopic anatomy [9] [10] is revealed, [7] [5] [4] and can be used to diagnose a wide range of histopathologic conditions. [8]
A hemangioma or haemangioma is a usually benign vascular tumor derived from blood vessel cell types. The most common form, seen in infants, is an infantile hemangioma, known colloquially as a "strawberry mark", most commonly presenting on the skin at birth or in the first weeks of life.
AIDS-associated Kaposi sarcoma typically presents with cutaneous lesions that begin as one or several red to purple-red macules, rapidly progressing to papules, nodules, and plaques, with a predilection for the head, back, neck, trunk, and mucous membranes. In more advanced cases, lesions can be found in the stomach and intestines, the lymph ...
Purple has long been considered to be a regal and royal color because, as Sawaya explains, prior to 1856, purple dyes and pigments were rare and only the wealthiest could afford it.
It is commonly used to identify and localise cancers as when it is under activation of blue light the red fluorescence of the malignant tumour (due to the HPD) can be observed easily. [ 18 ] The combination of HPD with red light (photoradiation) has been used on various malignant tumours including malignant melanomas and carcinomas on a range ...
Small blue round cells of Ewing Sarcoma Display of small round blue cells characteristic of desmoplastic small round cell tumour.. In histopathology, a small-blue-round-cell tumour (abbreviated SBRCT), also known as a small-round-blue-cell tumor (SRBCT) or a small-round-cell tumour (SRCT), is any one of a group of malignant neoplasms that have a characteristic appearance under the microscope ...