Skip Navigation
Skip to contents

JPTM : Journal of Pathology and Translational Medicine

OPEN ACCESS
SEARCH
Search

Previous issues

Page Path
HOME > Articles and issues > Previous issues
8 Previous issues
Filter
Filter
Article category
Keywords
Authors
Volume 55(4); July 2021
Prev issue Next issue
Reviews
Distinctive morphological and molecular features of urothelial carcinoma with an inverted growth pattern
Francesca Sanguedolce, Beppe Calò, Marco Chirico, Ugo Falagario, Gian Maria Busetto, Magda Zanelli, Alessandra Bisagni, Maurizio Zizzo, Stefano Ascani, Giuseppe Carrieri, Luigi Cormio
J Pathol Transl Med. 2021;55(4):239-246.   Published online June 14, 2021
DOI: https://doi.org/10.4132/jptm.2021.04.20
  • 1,644 View
  • 113 Download
  • 1 Citations
AbstractAbstract PDF
Urothelial carcinoma with an inverted growth pattern (UC-IGP) is a peculiar entity within the spectrum of urothelial lesions. While efforts have been made over the last few decades to unravel its carcinogenesis and relationship with conventional urothelial carcinoma, the exact classification of inverted urothelial lesions is a matter of debate. The morphological features of UC-IGP pose several issues in differential diagnosis with other mostly benign lesions. Various techniques, including immunohistochemistry, UroVysion, and many molecular methods, have been employed to study the exact nature of this lesion. The aim of this review is to provide a comprehensive overview of the morphological and immunophenotypical aspects of UC-IGP. Moreover, we present and discuss the immunohistochemical and molecular markers involved in diagnosis and prognosis of UC-IGP lesions.
Standardization of the pathologic diagnosis of appendiceal mucinous neoplasms
Dong-Wook Kang, Baek-hui Kim, Joon Mee Kim, Jihun Kim, Hee Jin Chang, Mee Soo Chang, Jin-Hee Sohn, Mee-Yon Cho, So-Young Jin, Hee Kyung Chang, Hye Seung Han, Jung Yeon Kim, Hee Sung Kim, Do Youn Park, Ha Young Park, So Jeong Lee, Wonae Lee, Hye Seung Lee, Yoo Na Kang, Younghee Choi
J Pathol Transl Med. 2021;55(4):247-264.   Published online July 8, 2021
DOI: https://doi.org/10.4132/jptm.2021.05.28
  • 5,104 View
  • 431 Download
  • 2 Citations
AbstractAbstract PDFSupplementary Material
Although the understanding of appendiceal mucinous neoplasms (AMNs) and their relationship with disseminated peritoneal mucinous disease have advanced, the diagnosis, classification, and treatment of AMNs are still confusing for pathologists and clinicians. The Gastrointestinal Pathology Study Group of the Korean Society of Pathologists (GPSG-KSP) proposed a multicenter study and held a workshop for the “Standardization of the Pathologic Diagnosis of the Appendiceal Mucinous Neoplasm” to overcome the controversy and potential conflicts. The present article is focused on the diagnostic criteria, terminologies, tumor grading, pathologic staging, biologic behavior, treatment, and prognosis of AMNs and disseminated peritoneal mucinous disease. In addition, GPSG-KSP proposes a checklist of standard data elements of appendiceal epithelial neoplasms to standardize pathologic diagnosis. We hope the present article will provide pathologists with updated knowledge on how to handle and diagnose AMNs and disseminated peritoneal mucinous disease.
Palmar and plantar fibromatosis: a review
Brian D. Stewart, Alessandra F. Nascimento
J Pathol Transl Med. 2021;55(4):265-270.   Published online July 7, 2021
DOI: https://doi.org/10.4132/jptm.2021.06.14
  • 2,689 View
  • 162 Download
  • 3 Citations
AbstractAbstract PDF
Palmar fibromatosis (Dupuytren disease/contracture) is the most common type of fibromatosis, defined as a benign proliferation of fibroblasts and myofibroblasts. The disease process is most common in white, middle-aged and older men occurring at the distal palmar crease leading to nodules and contracture, which in many cases recur after surgical treatment. In a similar process, plantar fibromatosis (Ledderhose disease) is a proliferation of fibroblasts and myofibroblasts on the plantar aponeurosis of mostly middle-aged patients that may lead to painful nodules but usually does not lead to contracture. Both processes are histologically similar, composed of a bland cellular proliferation of spindle cells with a bluish appearance and with a variable amount of background collagen, depending on the age of the lesion. The etiology of both lesions is still uncertain, while treatment ranges from observation to surgery, with some pharmacologic agents being investigated with mixed success. In this paper we provide an overview of both processes with regards to clinical and radiologic findings, pathophysiology, diagnosis, treatment, and prognosis.
Original Articles
Potential of AKT2 expression as a predictor of lymph-node metastasis in invasive breast carcinoma of no special type
Primariadewi Rustamadji, Elvan Wiyarta, Kristina Anna Bethania, Kusmardi Kusmardi
J Pathol Transl Med. 2021;55(4):271-278.   Published online June 14, 2021
DOI: https://doi.org/10.4132/jptm.2021.04.26
  • 1,673 View
  • 113 Download
  • 4 Citations
AbstractAbstract PDF
Background
Invasive breast carcinoma of no special type (IBC-NST) is the most common type of breast cancer and mainly causes regional lymph-node metastasis (LNM). We investigated the potential for AKT2 expression as a predictive biomarker for LNM in IBC-NST.
Methods
Forty-eight paraffin blocks containing IBC-NST primary tumors were divided into two groups based on presence or absence of LNM. Age, tumor grade, tumor size, lymphovascular invasion (LVI), and AKT expression were assessed. AKT2 expression was assessed based on immunohistochemical staining, while other data were collected from archives.
Results
Multiple logistic regression results showed that AKT2 expression and LVI were significantly associated with LNM (odds ratio [OR], 5.32; 95% confidence interval [CI], 1.42 to 19.93 and OR, 4.46; 95% CI, 1.17 to 16.97, respectively). AKT2 expression was able to discriminate against LNM (area under the receiver operating characteristic, 0.799 ± 0.063; 95% CI, 0.676 to 0.921) at an H-score cutoff of 104.62 (83.3% sensitivity, 62.5% specificity).
Conclusions
AKT2 expression has potential as a predictor of LNM in IBC-NST. The H-score cutoff for AKT2 expression can be used as a classification guide in future studies.
Correlation of TTF-1 immunoexpression and EGFR mutation spectrum in non–small cell lung carcinoma
Tripti Nakra, Varsha Singh, Aruna Nambirajan, Prabhat Singh Malik, Anant Mohan, Deepali Jain
J Pathol Transl Med. 2021;55(4):279-288.   Published online July 8, 2021
DOI: https://doi.org/10.4132/jptm.2021.05.10
  • 1,979 View
  • 103 Download
  • 2 Citations
AbstractAbstract PDF
Background
Thyroid transcription factor (TTF-1) is a diagnostic marker expressed in 75%–85% of primary lung adenocarcinomas (ACs). Activating mutations in the tyrosine kinase domain of the epidermal growth factor receptor (EGFR) gene is the most common targetable driver alteration in lung AC. Previous studies have shown a positive correlation between TTF-1 and EGFR mutation status. We aimed to determine the predictive value of TTF-1 immunoexpression for underlying EGFR mutation status in a large Indian cohort.
Methods
This retrospective designed study was conducted with medical record data from 2011 to 2020. All cases of primary lung AC and non–small cell lung carcinoma not otherwise specified (NSCLC, NOS) with known TTF-1 expression diagnosed by immunohistochemistry using 8G7G3/1 antibodies and EGFR mutation status diagnosed by quantitative polymerase chain reaction were retrieved, reviewed, and the
results
were analyzed. Results: Among 909 patient samples diagnosed as lung AC and NSCLC, NOS, TTF-1 was positive in 76.8% cases (698/909) and EGFR mutations were detected in 29.6% (269/909). A strong positive correlation was present between TTF-1 positivity and EGFR mutation status (odds ratio, 3.61; p < .001), with TTF-1 positivity showing high sensitivity (90%) and negative predictive value (87%) for EGFR mutation. TTF-1 immunoexpression did not show significant correlation with uncommon/dual EGFR mutations (odds ratio, 1.69; p = .098). EGFR–tyrosine kinase inhibitor therapy was significantly superior to chemotherapy among EGFR mutant cases irrespective of TTF-1 status; however, no significant differences among survival outcomes were observed.
Conclusions
Our study confirms a strong positive correlation between TTF-1 expression and common EGFR mutations (exon 19 deletion and exon 21 L858R) in advanced lung AC with significantly high negative predictive value of TTF-1 for EGFR mutations.
Clinicopathologic features of cutaneous metastases from internal malignancies
Hyeong Mok Kwon, Gyu Yeong Kim, Dong Hoon Shin, Young Kyung Bae
J Pathol Transl Med. 2021;55(4):289-297.   Published online July 7, 2021
DOI: https://doi.org/10.4132/jptm.2021.05.24
  • 1,994 View
  • 91 Download
  • 2 Citations
AbstractAbstract PDFSupplementary Material
Background
Cutaneous metastasis (CM) is the spread of cancer cells from a primary site to the skin and is rarely the first sign of silent cancer. We investigated the clinicopathological characteristics of CM from internal malignancies in Korean patients treated at our institution over 20 years.
Methods
The clinicopathological findings of 112 patients (62 females, 50 males) with CM diagnosed at Yeungnam University Hospital between 2000 and 2020 were retrospectively reviewed.
Results
Mean patient age was 58.6 years (range, 26 to 87 years), and the most common primary cancer site was breast (74.2%) in women and lung (36.0%) in men. Ninety-six patients (85.7%) presented with CM after primary tumor diagnosis. CM from the lung or biliary tract usually occurred within 2 years of primary tumor diagnosis, whereas metastases from the breast and kidney occurred several years later. The chest, abdomen, and scalp were common sites of CM. Breast cancer usually metastasized to chest skin, while gastrointestinal tract cancers commonly metastasized to the abdomen. The scalp was a common location for CM from various tumors. The most common dermatologic presentations were nodules and masses. Immunohistochemical studies helped identify underlying malignancies when primary tumors were unknown.
Conclusions
The relative frequency of CM parallels the overall incidence of primary malignant tumors, and CMs usually occur at anatomic sites close to the primary tumor. CM can be diagnosed based on clinical, radiological, and histological features; however, immunohistochemical study is required in some cases.
Case Study
Sarcomatoid urothelial carcinoma arising in the female urethral diverticulum
Heae Surng Park
J Pathol Transl Med. 2021;55(4):298-302.   Published online June 1, 2021
DOI: https://doi.org/10.4132/jptm.2021.04.23
  • 1,935 View
  • 82 Download
  • 1 Citations
AbstractAbstract PDF
A sarcomatoid variant of urothelial carcinoma in the female urethral diverticulum has not been reported previously. A 66-year-old woman suffering from dysuria presented with a huge urethral mass invading the urinary bladder and vagina. Histopathological examination of the resected specimen revealed predominantly undifferentiated pleomorphic sarcoma with sclerosis. Only a small portion of conventional urothelial carcinoma was identified around the urethral diverticulum, which contained glandular epithelium and villous adenoma. The patient showed rapid systemic recurrence and resistance to immune checkpoint inhibitor therapy despite high expression of programmed cell death ligand-1. We report the first case of urethral diverticular carcinoma with sarcomatoid features.
Brief Case Report
Metastatic gastric cancer of the testis diagnosed through urine cytology
Mee Sook Roh, Song-Hee Han
J Pathol Transl Med. 2021;55(4):303-305.   Published online June 1, 2021
DOI: https://doi.org/10.4132/jptm.2021.04.19
  • 1,658 View
  • 64 Download
PDF

JPTM : Journal of Pathology and Translational Medicine