(1) Similarly, sex cord antigens, such as inhibit (11-14,17,21) Wilms tumor 1 (WT1) (16) and calretinin
(11,12,17,18) are negative or show only weak focal positivity in rare HCOs.
as a diagnostic adjunct for ameloblastoma.
Immunohistochemically, the tumors were positive for a-inhibin (5/6) [Figure 1]d, calretinin
(5/6), CD99 (6/6), and forkhead box L2 (FOXL2, 6/6) [Figure 1]e and negative for epithelial membrane antigen (0/6).
In the paraffin-embedded (permanent) sections of the mass, the slit-like spaces were thought to be the glandular parts of an adenomatoid tumor or vascular structures and they stained negative for calretinin
and CK7 and positive for CD34.
IHC stains gave equivocal results for Cytokeratin AEI/AE3 and negative results for CD34, CD31, Desmin and Calretinin
. These findings proved to be essentially diagnostic of synovial sarcoma.
The most commonly found marker was Cytokaratin which was present in 71.4% of the mesothelioma patients, followed by Calretinin
(57.1%), and WT1 (50%).
CD99, chromogranin A, CD45, inhibin, calretinin
, CA-125, ER, PR, CK7, CK20, Moc31, Tag72, myogenin, S100, and destine were negative.
Tumor cells in the lung are mostly spindle cell tumors and are negative for actin M851, desmin, calretinin
and S-100 protein and focal positive for epithelial membrane antigen and AE1/AE3.
, calbindin D-28k, parvalbumin, and neurocalcin immunoreactivity.
Therefore, new studies introduce calretinin
as a helpful diagnostic marker for neurogenic tumor distinguishing from each other .
Negative staining for calretinin
. Ki-67 2.2% N57 M 35 8.0 Positive staining for 4 chromogranin A and synaptophysin.
On immunostaining, tumor cells were positive for CD31, CD34, WT1, vimentin, keratins AE1/AE3, and focal CK7 and negative for CK20, PSA, PSAP, AFP, TTF1, CDX2, BerEp4, calretinin
, podoplanin D2, CD45, and S100 (Figures 2(a)-2(d)).