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 (hĭs′tō-pə-thŏl′ə-jē, -pă-)
The study of the microscopic anatomical changes in diseased tissue.

his′to·path′o·log′ic (-păth′ə-lŏj′ĭk), his′to·path′o·log′i·cal adj.
his′to·path′o·log′i·cal·ly adv.
his′to·pa·thol′o·gist n.


(Pathology) the study of the microscopic structure of diseased tissues
histopathologic, histopathological adj


(ˌhɪs toʊ pəˈθɒl ə dʒi)

the branch of pathology dealing with the structure of abnormal or diseased tissue.
his`to•path`o•log′ic (-təˌpæθ əˈlɒdʒ ɪk) his`to•path`o•log′i•cal, adj.
his`to•pa•thol′o•gist, n.
References in periodicals archive ?
1) POTs are histopathologically characterized by a loose connective tissue stroma resembling dental papilla, lined by a single layer of columnar cells.
Histopathologically, it is characterized by a leukocytoclastic vasculitis.
Histopathologically, EPS was characterized by the increase in degenerated elastic fibers, predominately in the papillary layer of the dermis perforating through the epidermis.
On excisional biopsy, the 57 lumps were confirmed histopathologically as either Malignant (n = 24) or Benign (n = 33).
In their article, they include a valuable literature review on the differential diagnosis of unilateral chronic conjunctivitis, as well as discuss current treatment options for ocular molluscum contagiosum, which they diagnosed clinically and histopathologically.
The lesion was histopathologically diagnosed as appendicial endometriosis.
Table 1 shows the age and sex distribution of all the histopathologically diagnosed carcinomas.
Material and Methods: Sixty three female patients with histopathologically confirmed carcinoma of breast and age range from 20 to 70 years from Oncology outpatient department (OPD)/indoor patient department at CMH Rawalpindi, were selected.
IgG4-RD is an immune-mediated fibroinflammatory condition characterized histopathologically by three hallmark features in involved tissue: obliterative phlebitis, storiform fibrosis, and a dense lymphoplasmacytic infiltrate.
We diagnosed 27 crows with proliferative skin lesions (19 carcasses and 8 biopsied cases [1 in zoo captivity]) as avian pox clinically, histopathologically by detection of A vipoxvirus-specific 4b core protein (P4b) gene, and epidemiologically.
The mass was histopathologically diagnosed as sebaceous gland adenocarcinoma.
An autopsy registry also could function as a surrogate tissue bank for studies of molecular pathogenesis or proteomics, since it would identify sources of formalin-fixed, paraffin-embedded tissue from histopathologically confirmed cases of specific diseases in specific clinical contexts (eg, after medical or surgical therapy).