B, Confirmatory endometrioid features, including low-grade endometrioid glands lined by columnar cells
, pseudostratified nuclei with mild-moderate atypia, and squamous differentiation (hematoxylin-eosin, original magnifications whole slide image [A] and X40 [B]).
However, on rare occasions, there may be sampling error, which occurred in one case in our study where a subsequent ultrasound guided biopsy of the area revealed focal lobular carcinoma in situ in a background of columnar cell
In view of these findings, it has been suggested that the columnar cell
variant should not necessarily be treated as an aggressive subtype of PTC; instead, treatment should be based on clinical staging, with a focus on tumor encapsulation and invasion beyond the confines of the thyroid gland.
The radiating ducts often demonstrate a spectrum of nonproliferative and proliferative change, including columnar cell
change, adenosis, apocrine metaplasia, ductal hyperplasia, and papillomata (Figure 7, D).
A coexisting columnar cell
lesion was present on needle core biopsy in 36 of the 61 cases (59%).
Endometriosis, when present in the bladder, can exist as either a cystic lesion with a flat epithelial lining or glandular clusters with tall columnar cells
in the bladder wall.
of cases (%) males Females Angiofibroma 06 50% 06 -- Capillary hemangioma 02 16.67% -- 02 Inverted papilloma 02 16.67% 02 -- Columnar cell
papilloma 01 8.33% 01 -- Ameloblastoma 01 8.33% -- 01 Table 4--Malignant neoplasms in the sinonasal region Diagnosis No.
Here, there are pseudostratified columnar cells
admixed with large mucus cells and cells with homogenous eosinophilic cytoplasm.
luteipes, the single layered epithelium had different cell types: (i) columnar cells
with a large nucleus, and with intracellular canaliculi that opened into the lumen; and (ii) cubic cells, without intracellular canaliculi, closely associated with the cuticle (Fig.
The perinuclear and apical regions of the columnar cells
were strongly basophil in comparison with the basal cell region.
Caption: Figure 6: H and E stained section shows duct-like structures with an inner layer of cuboidal or columnar cells
Cuboidal or columnar cells
are seen lining duct-like spaces and clefts.4