scholarly journals Expression of E-cadherin and Ki-67 in canine apocrine and sebaceous gland tumors

2021 ◽  
Vol 91 (1) ◽  
pp. 51-63
Author(s):  
Marko Hohšteter ◽  
◽  
Ivan-Conrado Šoštarić-Zuckermann ◽  
Ivana Mihoković Buhin ◽  
Lidija Medven Zagradišnik ◽  
...  
Keyword(s):  
Survival Time ◽  
Sebaceous Gland ◽  
Immunohistochemical Analysis ◽  
Biological Behavior ◽  
Histopathological Analysis ◽  
Apocrine Gland ◽  
Ki 67 ◽  
Apocrine Glands ◽  
Sebaceous Adenomas ◽  
E Cadherin

A histopathological analysis of 13 apocrine gland tumors and 22 sebaceous gland tumors in dogs was performed, which were submitted to the Department of Veterinary Pathology from 1 January 2010 to 31 December 2012. An association between the immunohistochemical expression of E-cadherin and Ki-67, the type, and the biological behavior of the tumors was investigated. The mean age of dogs with apocrine gland tumors was 10.15 years, and 10.91 years for sebaceous gland tumors. According to the histopathological analysis, 53.8% carcinomas and 46.2% adenomas of the apocrine glands were found. In the sebaceous gland tumors, epitheliomas were dominant (50.0%), followed by adenomas (36.4%) and carcinomas (13.6%). Survival time in dogs with sebaceous gland tumors was shortest in patients with diagnosed epitheliomas, intermediate in adenomas, and longest in carcinomas. The incidence of metastases was low in the groups with sebaceous adenomas and epitheliomas, and recurrence was most common in carcinomas. The average survival time was about the same for apocrine gland adenomas and carcinomas, with a higher incidence of metastases and recurrence for carcinomas. Immunohistochemical analysis of E-cadherin and Ki-67 expression confirmed the efficiency of this method for the accurate histological classification of apocrine and especially sebaceous gland tumors. The analyzes performed showed that the location and intensity of E-cadherin expression can be helpful in predicting the biological behavior of sebaceous gland tumors. In contrast to sebaceous gland tumors, the analysis of apocrine gland tumors showed that there was no correlation between E-cadherin expression and the biological behavior of apocrine gland tumors.

scholarly journals Balloon Cell Malignant Melanoma in a Young Female: A Case Report and Review of the Literature

2016 ◽  
Vol 9 (1) ◽  
pp. 262-266 ◽  
Author(s):  
Yui Hattori ◽  
Kazuhiro Sentani ◽  
Takuya Hattori ◽  
Yoshimi Matsuo ◽  
Mikio Kawai ◽  
...  
Keyword(s):  
Malignant Melanoma ◽  
Lymph Nodes ◽  
Immunohistochemical Analysis ◽  
Histopathological Analysis ◽  
Lumbar Region ◽  
Ki 67 ◽  
Complete Replacement ◽  
Clinical Appearance ◽  
Balloon Cells ◽  
Balloon Cell

Balloon cell malignant melanoma (BCMM) is a very rare malignant melanoma subtype. The clinical appearance of BCMM varies; it may be nodular, ulcerated, polypoid, papillomatous and often non-pigmented. The tumor cells histologically appear large, polygonal or round and contain abundant granular or vacuolated cytoplasm. We herein report the case of a 32-year-old female who presented with a focal eccentric pigmented mass in the left lumbar region of 15 mm in diameter that had been present for several years. She underwent tumor excision. The histopathological analysis showed epithelioid melanocytes with clear cytoplasm. An immunohistochemical analysis revealed that the cells were positive for HMB-45 and S-100 protein and negative for cytokeratin. The balloon cell component stained negative for Fontana-Masson. A month later, the patient underwent excision of the bilateral inguinal lymph nodes and metastatic BCMM was revealed. The lymph node metastases showed the complete replacement of lymph nodes by balloon cells. A diagnosis of BCMM (Breslow depth 10 mm, Clark level V) without ulcer was rendered. Staining with Ki-67 was positive in almost 44% of the balloon cells.

scholarly journals Rare solitary fibrous tumor of the stomach: A case report

2015 ◽  
Vol 72 (11) ◽  
pp. 1035-1038 ◽  
Author(s):  
Tamara Boskovic ◽  
Mirjana Zivojinov ◽  
Jelena Ilic-Sabo ◽  
Zorana Budakov ◽  
Radovan Veljkovic ◽  
...  
Keyword(s):  
Case Report ◽  
Connective Tissue ◽  
Solitary Fibrous Tumor ◽  
Soft Tissue Tumors ◽  
Biological Behavior ◽  
Histopathological Analysis ◽  
Dystrophic Calcification ◽  
Ki 67 ◽  
Solitary Fibrous Tumors ◽  
Fibrous Tumor

Introduction. Solitary fibrous tumors are rare soft tissue tumors of submesothelial origin and variable malignant potential. The most common localization is pleural, whereas only 0.6% are of extrapleural localization. Solitary fibrous tumor of the peritoneum, especially of gastric serosa is an extremely rare form of this tumor. Case report. We presented a 65- year-old female patient with solitary fibrous tumor of the stomach. Histopathological analysis of removed tissue showed the presence of tumor tissue built of spindle cells, elongated nuclei with moderately abundant cytoplasm. Cells were in a noncohesive arrangement, in smaller areas distributed in the form of palisade. There were amounts of hipocellular connective tissue, hyalinised, with small foci of dystrophic calcification. Mitoses were rare (less than 3/10 HPF). Blood vessels surrounded the connective tissue. Reviewed material did not contain elements of the parent organ. Immunohistochemically there were positivity on CD34 and vimentin, and negativity to S100, SMA, CD117, dezmin, and Ki-67 is < 2%. The change was diagnosed as a solitary fibrous tumor. Conclusion. Considering that benign solitary fibrous tumors of extrathoracic localizations are extremely rare neoplasms with unpredictable biological behavior and the possibility of recurrence, a long-term clinical and endoscopic follow-up on yearly basis of patients with this disease is recommended.

Immunohistochemical Characterization and Evaluation of Prognostic Factors in Canine Oral Melanomas with Osteocartilaginous Differentiation

2007 ◽  
Vol 44 (5) ◽  
pp. 676-682 ◽  
Author(s):  
J. Sánchez ◽  
G. A. Ramirez ◽  
A. J. Buendia ◽  
M. Vilafranca ◽  
C. M. Martinez ◽  
...  
Keyword(s):  
Mitotic Index ◽  
Clinical Characteristics ◽  
Clinical Course ◽  
Immunohistochemical Analysis ◽  
Human Medicine ◽  
Biological Behavior ◽  
Proliferation Index ◽  
Proliferation Marker ◽  
Prognosis Factors ◽  
Ki 67

Melanomas are the most common malignant oral neoplasm in dogs. Osteocartilaginous differentiation in oral melanomas is a rare feature described both in veterinary and human medicine. Here, 10 cases of this type of neoplasm were used to study their immunohistochemical, biological, and clinical characteristics. Reactivity for S100 and melan A antigen was evaluated, and 4 prognosis factors (mitotic index, invasiveness of epithelium, nuclear atypia, and proliferation index) were analyzed and correlated with the clinical course of the neoplasms after diagnosis. Immunohistochemical analysis of the studied neoplasms, including the osteocartilaginous areas, showed positive immunoreaction for S100 and melan A, except in one dog, which was negative for melan A. Analysis of the results showed that oral melamonas with osteocartilaginous differentiation have a clinical course similar to that of other melanomas in the oral cavity. Analysis of the mitotic index and the expression of proliferation marker Ki-67 could be useful tools for predicting the biological behavior of these neoplasms.

scholarly journals Microcystic adnexal carcinoma: report of rare cases

2020 ◽  
Vol 40 (1) ◽  
Author(s):  
Lei Zhang ◽  
Xiaofeng Huang ◽  
Ting Zhou ◽  
Hongbao Cao
Keyword(s):  
Tumor Cells ◽  
Periodic Acid ◽  
Malignant Neoplasm ◽  
Disease Diagnosis ◽  
Apocrine Gland ◽  
Ki 67 ◽  
Apocrine Glands ◽  
Lower Lip ◽  
Microcystic Adnexal Carcinoma ◽  
S 100

Abstract Microcystic adnexal carcinoma (MAC) is a rare, locally aggressive malignant neoplasm that derives from cutaneous eccrine/apocrine glands. MAC is classified as an eccrine/apocrine gland tumor and usually occurs in the skin. Here, we characterized and compared two cases of MAC. One is extremely rare in terms of its occurrence in the tongue. The other occurred in the lip, which is common. Histories of disease, diagnosis, and differentials were reviewed by the attending physicians. Hematoxylin and Eosin (HE) slides were evaluated by an experienced pathologist. Immunological markers for malignant eccrine/apocrine gland tumors were used to characterize the tumor’s nature. The examined markers included EMA, CK5/6, CK8/18, CK7, CK20, p63, S-100, Calponin, CD10, MYB, Bcl-2, Her-2, CD34, SMA, p53, CD43, CD117, and Ki-67. Both patients were males, presented with painless lumps in the lower lip and in the tongue, respectively. Both lumps were similar in terms of appearance, being whitish, and infiltrative with irregular borders. Both tumors also had similar histological features with nests of bland keratinocytes, cords, and ductal differentiation filled with Periodic acid–Schiff (PAS)-positive eosinophilic material. In both cases, circular or ovary tumor cells invaded into muscles and nerves. All tumor cells were CK5/6, CK8/18, EMA, and CK7 positive. Particularly, keratinocytes were p63 positive, and paraductal cells were p63, S-100, and SMA positive. Therefore, the rare case of MAC in the tongue appears to derive from the salivary gland.

A rare case of sebaceous adenoma of the palate, with literature review

2011 ◽  
Vol 125 (7) ◽  
pp. 750-752 ◽  
Author(s):  
K G Somashekara ◽  
S Lakshmi ◽  
N S Priya
Keyword(s):  
Case Report ◽  
English Language ◽  
Histopathological Analysis ◽  
Ki 67 ◽  
Sudan Black B ◽  
Sebaceous Adenoma ◽  
English Language Literature ◽  
Sebaceous Adenomas ◽  
Language Literature

AbstractObjective:We present the first reported case of sebaceous adenoma of the palate, to our knowledge.Method:Case report and review of the English language literature, with a focus on the pathological spectrum of sebaceous glands.Case report:A woman presented with a growth on the hard palate, which was excised and examined. Histopathological analysis showed features of sebaceous adenoma. Further evaluation with Sudan Black B special stains and Ki 67 immunohistochemistry was performed.Conclusion:Sebaceous adenomas in the oral cavity are very rare, with only 10 cases previously reported in the English language literature. Sebaceous adenoma of the palate has not previously been reported, to our knowledge. We discuss the role of special stains and immunohistochemistry in the diagnosis of this tumour.

Association between expression of Ki-67, parafibromin, p27, and Rb protein and the biological behavior in parathyroid tumors

2013 ◽  
Author(s):  
Keiko Ohkuwa ◽  
Chie Masaki ◽  
Junko Akaishi ◽  
Akifumi Suzuki ◽  
Takashi Uruno ◽  
...  
Keyword(s):  
Biological Behavior ◽  
Ki 67 ◽  
Rb Protein ◽  
Parathyroid Tumors

scholarly journals Changes in Cellular Regulatory Factors before and after Decompression of Odontogenic Keratocysts

2020 ◽  
Vol 10 (1) ◽  
pp. 30
Author(s):  
Slmaro Park ◽  
Han-Sung Jung ◽  
Young-Soo Jung ◽  
Woong Nam ◽  
Jung Yul Cha ◽  
...  
Keyword(s):  
Recurrence Rate ◽  
Biological Behavior ◽  
Nuclear Antigen ◽  
Epithelial Cyst ◽  
Ki 67 ◽  
Proliferation Markers ◽  
Odontogenic Keratocysts ◽  
Wide Range ◽  
Before And After ◽  
Cyst Lining

Decompression followed by enucleation, which is one of the treatments used for odontogenic keratocysts (OKCs), is frequently used in OKC lesions of large sizes. This method offers the advantage of minimizing the possibility of sensory impairment without creating a wide-range bone defect; moreover, the recurrence rate can be significantly lower than following simple enucleation. This study aimed to assess the changes in histology and expression of proliferation markers in OKCs before and after decompression treatment. A total of 38 OKC tissue samples from 19 patients who had undergone decompression therapy were examined morphologically and immunohistochemically to observe changes in proliferative activity before and after decompression. The markers used for immunohistochemistry (IHC) staining were Bcl-2, epidermal growth factor receptor (EGFR), Ki-67, P53, PCNA, and SMO. The immunohistochemistry positivity of the 6 markers was scored by using software ImageJ, version 1.49, by quantifying the intensity and internal density of IHC-stained epithelium. The values of Bcl-2, Ki-67, P53, proliferating cell nuclear antigen (PCNA), and SMO in OKCs before and after decompression showed no significant change. No correlation between clinical shrinkage and morphologic changes or expression of proliferation and growth markers could be found. There was no statistical evidence that decompression treatment reduces potentially aggressive behavior of OKC within the epithelial cyst lining itself. This might indicate that decompression does not change the biological behavior of the epithelial cyst lining or the recurrence rate.

scholarly journals The Role of Immunohistochemical Markers for the Diagnosis and Prognosis of Adrenocortical Neoplasms

2021 ◽  
Vol 11 (3) ◽  
pp. 208
Author(s):  
Anna Angelousi ◽  
Georgios Kyriakopoulos ◽  
Fani Athanasouli ◽  
Anastasia Dimitriadi ◽  
Eva Kassi ◽  
...  
Keyword(s):  
Transcriptome Analysis ◽  
Cox Regression ◽  
P53 Protein ◽  
Immunohistochemical Analysis ◽  
Ki 67 ◽  
Diagnosis And Prognosis ◽  
Immunohistochemical Markers ◽  
Small Series ◽  
Morphological Criteria ◽  
Survival And Development

Adrenal cortical carcinoma (ACC) is a rare cancer with poor prognosis that needs to be distinguished from adrenocortical adenomas (ACAs). Although, the recently developed transcriptome analysis seems to be a reliable tool for the differential diagnosis of adrenocortical neoplasms, it is not widely available in clinical practice. We aim to evaluate histological and immunohistochemical markers for the distinction of ACCs from ACAs along with assessing their prognostic role. Clinical data were retrospectively analyzed from 37 patients; 24 archived, formalin-fixed, and paraffin-embedded ACC samples underwent histochemical analysis of reticulin and immunohistochemical analysis of p27, p53, Ki-67 markers and were compared with 13 ACA samples. Weiss and Helsinki scores were also considered. Kaplan−Meier and univariate Cox regression methods were implemented to identify prognostic effects. Altered reticulin pattern, Ki-67% labelling index and overexpression of p53 protein were found to be useful histopathological markers for distinguishing ACAs from ACCs. Among the studied markers, only pathological p53 nuclear protein expression was found to reach statistically significant association with poor survival and development of metastases, although in a small series of patients. In conclusion, altered reticulin pattern and p53/Ki-67 expression are useful markers for distinguishing ACCs from ACAs. Immunohistopathology alone cannot discriminate ACCs with different prognosis and it should be combined with morphological criteria and transcriptome analysis.

Experience of using the drug Glutoxim in patients with benign and borderline epithelial ovarian tumors after performing conservative surgical treatment

2018 ◽  
pp. 79-86
Author(s):  
A.A. Sukhanova ◽  
◽  
M.Yu. Yegorov ◽  
Keyword(s):  
Surgical Treatment ◽  
High Risk ◽  
Ovarian Tumors ◽  
Molecular Profile ◽  
Control Group ◽  
Profile Data ◽  
Ki 67 ◽  
Risk Of Recurrence ◽  
Relapse Therapy ◽  
E Cadherin

The objective: to increase the effectiveness of treatment of patients with benign and borderline epithelial ovarian tumors (EOT) after conservative operations performed based on the definition of a high risk group for recurrence and malignancy according to the molecular expression profile of the markers p53, Ki-67, estrogen receptors (ER), CD34 and E-cadherin and inclusion in the complex anti-relapse therapy of the immunomodulating drug Glutoxim. Materials and methods. A clinical examination of 60 patients of reproductive age with EOT was performed, which were treated with organ-sparing surgical treatment (main group). Of these 60 patients, 30 women (subgroup I) were diagnosed with benign EOT (BEOT), the remaining 30 women (subgroup II) were diagnosed with borderline EOT (BoEOT) Ia and Ib stages in FIGO. In removed tumors after routine histopathological examination, the molecular profile was determined by immunohistochemically determining the protein regulator of apoptosis p53, proliferation index (PI) by Ki-67 expression, estrogen receptors — ER, microvessel density by CD34 expression and E-cadherin intercellular adhesion protein. Based on the molecular profile determination data, the removed tumor was ranked as high or low risk of recurrence and malignancy. Patients from the high-risk group for relapse and malignancy according to the molecular profile data included the immunomodulating drug Glutoxim in the complex anti-relapse therapy - intramuscularly 10 mg daily for 2 weeks with a course repeated every six months for 3 years. The control group consisted of 64 patients with BEOT and BoEOT, who underwent conservative surgical treatment without further anti-relapse treatment. Results. During the molecular profile study, it was found that high risk of recurrence and malignancy had EOT with p53 expression (LI ≥15%), high proliferative activity of cells with Ki-67 expression (PI ≥10%), low estrogen reception (LI ER < 49.5%), high density of microvessels on the expression of CD34 (IM ≥40 mv /mm2), low level of intercellular adhesion on the expression of E-cadherin (LI <59%). Molecular profile characterizing a high risk of recurrence and malignancy, in most cases was inherent in BoEOT. The purpose of a comprehensive anti-relapse treatment with the inclusion of the immunomodulatory drug Glutoxim (intramuscularly daily at 10 mg for 2 weeks) after performing of sparing conservative surgical treatment with a repetition of the course every six months in patients at high risk of relapse and malignancy according to molecular profile data has reduced the relapse of EOT to 6.7% in patients of the main group compared with 20.3% in the control group during three years of follow-up observation of patients. The difference is statistically significant (p <0.05). Conclusion. In order to prevent cases of recurrence and malignancy in patients with EOT at high risk of relapse and malignancy according to molecular profile data after a sparing surgical treatment that preserves their reproductive function, it is recommended that Glutoxim is administered in complex anti-relapse therapy at 10 mg intramuscularly per every day for 2 weeks with a repetition of the course every six months for 3 years. Key words: benign epithelial ovarian tumors, borderline epithelial ovarian tumors, high risks of recurrence and malignancy, anti-relapse therapy, reproductive function, Glutoxim.

Sign in / Sign up

Export Citation Format

Share Document