Search results
Results from the WOW.Com Content Network
Atypia (from Greek, a + typos, without type; a condition of being irregular or nonstandard) [1] is a histopathologic term for a structural abnormality in a cell, i.e. it is used to describe atypical cells. Atypia can be caused by infection or irritation. If, for example it were diagnosed in a Pap smear in the uterus it is more likely to be ...
Pagetoid is a term used in dermatology to refer to "upward spreading" of abnormal cells in the epidermis (ie from bottom to top). It is uncommon and a possible indication of a precancerous or cancerous condition. Cells display pagetoid growth when they invade the upper epidermis from below.
Atypical fibroxanthoma (AFX) of the skin is a low-grade malignancy related to malignant fibrous histiocytoma, which it resembles histologically. [ 2 ] : 613 Atypical fibroxanthoma manifests as a hard, pink or red papule or nodule that grows over the course of several months and may bleed or ulcerate .
ThinPrep pap smear with group of normal cervical cells on left and HPV-infected cells showing features typical of koilocytes: enlarged (x2 or x3) nuclei and hyperchromasia. A koilocyte is a squamous epithelial cell that has undergone a number of structural changes, which occur as a result of infection of the cell by human papillomavirus (HPV). [1]
In dermatopathology, the Tzanck test, also Tzanck smear, is scraping of an ulcer base to look for Tzanck cells. It is sometimes also called the chickenpox skin test and the herpes skin test. It is a simple, low-cost, and rapid office based test. [1] Tzanck cells (acantholytic cells) are found in: Herpes simplex [2] Varicella and herpes zoster
Examination by a dermatologist has been shown to be beneficial for early melanoma detection. Some dermatologists recommend that an individual with either histologic diagnosis of dysplastic nevus, or clinically apparent atypical moles should be examined by an experienced dermatologist with dermatoscopy once a year (or more frequently).
Immunofluorescence (IF) on ethanol-fixed neutrophils is used to detect ANCA, although formalin-fixed neutrophils may be used to help differentiate ANCA patterns. ANCA can be divided into four patterns when visualised by IF; cytoplasmic ANCA (c-ANCA), C-ANCA (atypical), perinuclear ANCA (p-ANCA) and atypical ANCA (a-ANCA), also known as x-ANCA. c-ANCA shows cytoplasmic granular fluorescence ...
Touton giant cells are also referred to as xanthelasmatic cells due to the fact they are found in lesions associated with xanthomas which are skin growths with yellow, lipid filled deposits. Touton giant cells are often frequently observed in granulomatous inflammation, which is a type of inflammation caused by the clustering of immune cells ...