Abiy B. Ambaye

Carcinoma and atypical hyperplasia in reduction mammaplasty: increased sampling leads to increased detection. A prospective study.

Background: Reduction mammaplasty for symptomatic macromastia or correction of asymmetry is performed more than 100,000 times per year in the United States. The reported incidence of occult breast cancer in reduction mammaplasty ranges from 0.06 to 4.6 percent. No standard pathology assessment for reduction mammaplasty exists. The authors evaluated the incidence of occult carcinoma and atypical hyperplasia in reduction mammaplasty specimens and identified clinical risk factors. Systematic sampling of additional tissue sections was instituted to evaluate the hypothesis that increased sampling would identify more significant pathologic findings. Methods: All reduction mammaplasty specimens over a 20-month period at a single institution were prospectively examined. All specimens had baseline gross and microscopic evaluations, and then each was subjected to systematic additional sampling. The incidence of significant pathologic findings (carcinoma and atypical hyperplasia) was tabulated. Variables such as age and preoperative mammogram were examined. Results: A total of 202 cases were evaluated. Significant pathologic findings (carcinoma and atypical hyperplasia) were present in 12.4 percent. The rate of carcinoma was 4 percent in all patients (6.2 percent in patients ≥40 years and 7.9 percent in patients ≥50 years). Conclusions: A significantly higher rate (12.4 percent) of significant pathologic findings was identified in this prospective study compared with published literature. None of the lesions was identified on preoperative mammogram. Age was significantly associated with significant pathologic findings. Increased sampling was associated with significant pathologic findings only in patients 40 years or older, indicating the need for thorough sampling of reduction mammaplasty specimens in patients older than 40.

Adult testicular granulosa cell tumor: a review of the literature for clinicopathologic predictors of malignancy.

Adult testicular granulosa cell tumors are rare sex cord-stromal tumors of which only 28 have been previously reported. As compared with their ovarian counterparts, these tumors may follow a more aggressive course because the proportion of malignant cases is higher. To date, there are no clinical or pathologic features that definitively predict malignancy. We reviewed all prior case reports for features that may predict their malignant potential. Tumor size greater than 5.0 cm is the only feature statistically associated with malignancy. Mitotic count, tumor necrosis, patient age, and the presence of gynecomastia do not, at present, predict benign versus malignant behavior.

Human breast cancer biopsies induce eosinophil recruitment and enhance adjacent cancer cell proliferation.

Chronic inflammation is known to facilitate cancer progression and metastasis. Less is known about the effect of acute inflammation within the tumor microenvironment, resulting from standard invasive procedures. Recent studies in mouse models have shown that the acute inflammatory response triggered by a biopsy in mammary cancer increases the frequency of distal metastases. Although tumor biopsies are part of the standard clinical practice in breast cancer diagnosis, no studies have reported their effect on inflammatory response. The objective of this study is to (1) determine whether core needle biopsies in breast cancer patients trigger an inflammatory response, (2) characterize the type of inflammatory response present, and (3) evaluate the potential effect of any acute inflammatory response on residual tumor cells. The biopsy wound site was identified in the primary tumor resection tissue samples from breast cancer patients. The inflammatory response in areas adjacent (i.e., immediately around previous biopsy site) and distant to the wound biopsy was investigated by histology and immunohistochemistry analysis. Proliferation of tumor cells was also assayed. We demonstrate that diagnostic core needle biopsies trigger a selective recruitment of inflammatory cells at the site of the biopsy, and they persist for extended periods of time. While macrophages were part of the inflammatory response, an unexpected accumulation of eosinophils at the edge of the biopsy wound was also identified. Importantly, we show that biopsy causes an increase in the proliferation rate of tumor cells located in the area adjacent to the biopsy wound. Diagnostic core needle biopsies in breast cancer patients do induce a unique acute inflammatory response within the tumor microenvironment and have an effect on the surrounding tumor cells. Therefore, biopsy-induced inflammation could have an impact on residual tumor cell progression and/or metastasis in human breast cancer. These findings may carry relevance in the clinical management of breast cancer.

Comparison of Estrogen and Progesterone Receptor Antibody Reagents Using Proficiency Testing Data

CONTEXT - Immunohistochemical analysis of estrogen receptor (ER) and progesterone receptor (PgR) expression in breast cancer is the current standard of care and directly determines therapy. In 2010 the American Society of Clinical Oncology and the College of American Pathologists (ASCO/CAP) published guidelines for ER and PgR predictive testing, encompassing preanalytic, analytic, postanalytic factors; antibody validation; and proficiency testing. OBJECTIVE - To compare the performance of different antibody reagents for ER and PgR immunohistochemical analysis by using CAP proficiency testing data. DESIGN - The CAP PM2 survey uses tissue microarrays of ten 2-mm cores per slide. We analyzed survey data from 80 ER and 80 PgR cores by antibody clone from more than 1200 laboratories. RESULTS - Laboratories used the ER antibodies SP1 (72%), 6F11 (17%), 1D5 (3%), and the PgR antibodies 1E2 (61%), 16 (12%), PgR-636 (13%), PgR-1294 (8%) in 2015. While 63 of 80 ER cores (79%) were scored similarly using each of the 3 antibodies, there were significant differences for others, with SP1 yielding more positive interpretations. Four cores were scored as ER negative by more than half of the laboratories using 1D5 or 6F11, while SP1 produced positive results in more than 70% of laboratories using that antibody. Despite the greater variety of PgR antibody reagents and greater PgR tumor heterogeneity, 61 of 80 cores (76%) were scored similarly across the 4 PgR antibodies. CONCLUSIONS - Accurate ER and PgR testing in breast cancer is crucial for appropriate treatment. The CAP proficiency testing data demonstrate differences in staining results by ER clone, with SP1 yielding more positive results.

Follicular and Hürthle cell lesions of the thyroid: can inconclusive results be minimized?

OBJECTIVE To assess the cytologic criteria for distinguishing neoplastic from nonneoplastic follicular cell and Hürthle cell thyroid lesions. STUDY DESIGN Ten previously described and commonly used cytologic criteria were evaluated and graded on a 0-4 scale in a consecutive series of thyroid fine needle aspirations (FNAs) reported as follicular or Hürthle cell neoplasms or lesions. Scoring was compared to subsequent surgical outcome. RESULTS A total of 93 (57fo llicular cell and 36 Hühle cell) cases was analyzed. No individual cytologic feature was helpful in distinguishing benign neoplarms from malignancy in either category (p > 0.05), but 4 or more coexistent cytologic features in combination were identified in 50.0% of follicular neoplasms, 13.6% of Hürthle cell neoplasms and none of the nonneoplastic lesions. An unexpected number (13 of 93, 14.0%) of unrecognized papillary carcinomas, some of follicular subtype, was encountered. CONCLUSION In this series, the indeterminate thyroid FNA category could have been reduced by diagnosis of samples with 4 or more of the studied criteria as definite follicular (50% of cases) or Hürthle cell (13.6% of cases) neoplasms and by more astute recognition of papillary carcinomas (14.0% of cases), which blend into this category, often as a result of less-than-optimal sampling or preservation.

Recommendations for Pathologic Evaluation of Reduction Mammoplasty Specimens: A Prospective Study With Systematic Tissue Sampling

CONTEXT - Breast reduction mammaplasty (RMP) for symptomatic macromastia or correction of asymmetry is performed in more than 100 000 patients per year in the United States. The reported incidence of significant pathologic findings (SPF), that is, carcinoma and atypical hyperplasia, ranges from 0.06% to 12.8%. No standard pathology assessment for RMP exists. OBJECTIVES - To propose standard sampling for microscopic evaluation in RMP specimens, to evaluate the incidence of occult carcinoma and atypical hyperplasia, and to identify clinical risk factors for SPF in patients undergoing RMP. DESIGN - All RMP specimens from 2006 to 2013 at a single institution were prospectively examined. After baseline gross and microscopic evaluations, each specimen was subjected to systematic additional sampling. The incidence of SPF was tabulated, and variables such as age, specimen weight, previous history of SPF, and results of preoperative mammogram were examined. Clinical follow-up review was also subsequently undertaken. RESULTS - A total of 595 patients were evaluated. Significant pathologic findings were present in 9.8% (58 of 595) of patients. No cancer was identified in patients younger than 40 years; the rates of carcinoma were 2.4% (14 of 595) in all patients, 3.6% (14 of 392) in patients aged 40 years or older, and 4.3% (10 of 233) in patients aged 50 years or older. No carcinoma or atypical hyperplasia was identified on preoperative mammogram. Increased sampling was associated with a significantly greater frequency of SPF only in patients aged 40 years or older. CONCLUSIONS - In patients younger than 35 years, gross-only evaluation is sufficient. However, increased sampling may be necessary in patients older than 40 years.

Transition to Subspecialty Sign-Out at an Academic Institution and Its Advantages

Many pathology departments are introducing subspecialty sign-out in surgical pathology. In 2014, the University of Vermont Medical Center transitioned from general sign-out to partial subspecialty sign-out to include gastrointestinal and breast/cervix subspecialty benches; other specimens remained on general benches. Our experiences with the transition are described, including attending pathologist, trainee, support staff, and clinician satisfaction. A survey was e-mailed to all University of Vermont Medical Center anatomic pathology attendings, pathology trainees, pathologist assistants and grossing technicians, and clinicians who send surgical pathology specimens, immediately before and 1 year after transitioning to partial subspecialty sign-out. Quality assurance metrics were obtained for the 18 months prior to and following the transition. Gastrointestinal and breast/cervix attendings were more satisfied with partial subspecialty sign-out compared to those on the general benches. Overall, trainees were more satisfied with general sign-out because of the rotation schedule but preferred partial subspecialty sign-out due to improved teaching and more focused learning while on subspecialty benches. Clinicians remained very satisfied with our department and our reports; no differences were observed. Turnaround time was unchanged. After switching to partial subspecialty sign-out, there were significantly fewer discrepancies following multidisciplinary conference review for gastrointestinal and breast/cervix cases but remained the same for general cases. Fewer formal internal consults were performed after transitioning to partial subspecialty sign-out across all areas, but more notable for gastrointestinal and breast/cervix cases. Our data show improved quality assurance metrics and trainee education in a subspecialty sign-out setting compared to general sign-out setting.

Subject Index Vol. 52, 2008

Analytical and Quantitative Cytology and Histology: Volume 29, Number 6 (December 2007), 2008; 52:114–116 Analytical and Quantitative Cytology and Histology: Volume 30, Number 1 (February 2008), 2008;52: 255–258 Analytical and Quantitative Cytology and Histology: Volume 30, Number 2 (April 2008), 2008;52: 373–376 Analytical and Quantitative Cytology and Histology: Volume 30, Number 3 (June 2008), 2008;52:505– 508 Analytical and Quantitative Cytology and Histology: Volume 30, Number 4 (August 2008), 2008;52: 631–634 Analytical and Quantitative Cytology and Histology: Volume 30, Number 5 (October 2008), 2008;52: 736–738 Acid-fast bacilli Role of Modified Bleach Method in Staining of Acid-Fast Bacilli in Lymph Node Aspirates. (Gangane et al), 2008;52:325–328 Adenocarcinoma CK5/6 in Effusions: No Difference Between Mesothelioma and Pulmonary and Nonpulmonary Adenocarcinoma. (Dejmek), 2008;52: 579–583 Cytology of Pseudomyxoma Peritonei Associated with Well-Differentiated Appendiceal Adenocarcinoma. (Siddaraju et al), 2008;52:391–394 (Letter) Diagnosis of Linitis Plastica–Type Gastric Adenocarcinoma by Endoscopic Ultrasound-Guided Fine Needle Aspiration: A Case Report. (Carter et al), 2008;52:725–728 Improved Identification of Malignant Cells in Serous Effusions Using a Small, Robust Panel of Antibodies on Paraffin-Embedded Cell Suspensions. (Grefte et al), 2008;52:35–44 Adenocarcinoma, clear cell Clear Cell Carcinoma in a Background of Endometriosis: Case Report of a Finding in a Midline Abdominal Scar 5 Years After a Total Abdominal Hysterectomy. (Rust et al), 2008;52: 475–480 Adenoma Cytologic Features of Pulmonary Alveolar Adenoma. (González et al), 2008;52:739–740 (Letter) Adenoma, microcytic Preoperative Fine Needle Aspiration Cytology Diagnosis of Microcystic Adenoma of the Pancreas: Fact or Fiction? A Report of 2 Cases. (Fitzhugh et al), 2008;52:240–246 Adenoma, pleomorphic Chondromyxoid Fibroma of the Mandible: A Diagnostic Pitfall on Aspiration Cytology of Parotid. (Daneshbod and Khademi), 2008;52:636–638 (Letter) Fine Needle Aspiration Biopsy of Pleomorphic Adenoma and Adenoid Cystic Carcinoma of the Lacrimal Gland. (Siddaraju et al), 2008;52:515– 517 (Letter) Adenoma, pleomorphic metastazing Pleomorphic Adenoma of the Parotid Gland Metastasizing to the Scapular Region: A Case Report. (Ghosh et al), 2008;52:733–735 Adnexa Cytologic Features of Primary Malignant Tumors of Skin and Adnexae. (Prayaga et al), 2008;52: 702–709 Adolescent Fine Needle Aspiration Cytology of Breast Masses in Children and Adolescents: Experience with 1,404 Aspirates. (Kapila et al), 2008;52:681–686 Adult T-cell leukemia/lymphoma Diagnostic Considerations in Prolymphocytes in Pleural Fluid: A Case Report. (Anand et al), 2008; 52:251–254 Africa Into Africa: Cytology for One World. (Kaminsky), 2008;52:399 Alcian blue Cytology of Pseudomyxoma Peritonei Associated with Well-Differentiated Appendiceal Adenocarcinoma. (Siddaraju et al), 2008;52:391–394 (Letter) Analytical and Quantitative Cytology and Histology

Contributors Index Vol. 52, 2008

Abascal-Agorreta M (see Vera-Alvarez et al). 2008;52: 264–266 (Letter) Abdali K (see Shamsi et al). 2008;52:187–190 Abdul-Karim FW (see Farag et al). 2008;52:294–296 Abnet CC (see Pan et al). 2008;52:14–23 Abraham EK (see Ramadas et al). 2008;52:396–398 (Letter) Adán A (see Saro et al). 2008;52:87–90 Afarid M (see Mostaghni et al). 2008;52:597–601 Aisner S (see Fitzhugh et al). 2008;52:240–246 Akbulut M, Zekioglu O, Kapkac M, Erhan Y, Ozdemir N. Fine Needle Aspiration Cytology of Glycogen-Rich Clear Cell Carcinoma of the Breast: Review of 37 Cases with Histologic Correlation. 2008;52:65–71 Akbulut M, Zekioglu O, Ozdemir N, Kapkac M. Fine Needle Aspiration Cytology of Mammary Carcinoma with Choriocarcinomatous Features: A Report of 2 Cases. 2008;52:99–104 Aktepe F (see Tokyol et al). 2008;52:235–239 Al-Abbadi M (see Vella et al). 2008;52:377–378 (Letter) Al-Abbadi MA (see Feng et al). 2008;52:434–438 Al-Agha OM, Khader SN, Cajigas A, Blank W, Grafstein N, Seymour AW. Fine Needle Aspiration of Urethral Recurrence of Urothelial Carcinoma After Radical Cystectomy Presenting as a Perineal Mass: A Case Report. 2008;52:94–98 Al-Ayadhy B (see Kapila et al). 2008;52:681–686 Al-Mosawy FA (see Kapila et al). 2008;52:681–686 Al-Sebeih K (see Palmieri et al). 2008;52:691–696 Aledavud A (see Daneshbod et al). 2008;52:387–389 (Letter) Ales A (see Terčelj et al). 2008;52:584–590 Almeida JD, Lima CF, Brandão AAH, Cabral LAG. Evaluation of Staining Methods for Cytologic Diagnosis of Oral Lesions. 2008;52:697–701 Altay M (see Demir et al). 2008;52:309–312 Alvarez-Santín C. Endometrial Adenocarcinoma: Prevention and Early Diagnosis. 2008;52:748 (Book Review) Amadori PL (see Bonzanini et al). 2008;52:541–548 Amano S (see Komatsu et al). 2008;52:591–596 Ambaye AB (see Sherman et al). 2008;52:659–664 Anand M, Sharma S, Kumar R, Raina V. Diagnostic Considerations in Prolymphocytes in Pleural Fluid: A Case Report. 2008;52:251–254 Ang L-C (see Keith et al). 2008;52:260–263 (Letter) Angeloni C (see Maccallini et al). 2008;52:568–574 Anshu (see Gabhane et al). 2008;52:354–356 Anshu (see Gangane et al). 2008;52:325–328 Anshu (see Gangane et al). 2008;52:619–622 Antonelli C (see Maccallini et al). 2008;52:568–574 Apice G (see Fulciniti et al). 2008;52:612–618 Arabi MA (see Daneshbod et al). 2008;52:268–270 (Letter) Argüelles M (see González et al). 2008;52:490–494 Armbruster C, Bernhardt K, Setinek U. Pulmonary Tumorlet: A Case Report of a Diagnostic Pitfall in Cytology. 2008;52:223–227 Aron M (see Mathur et al). 2008;52:740–743 (Letter) Arora VK (see Mathur et al). 2008;52:740–743 (Letter) Arundhati (see Garbyal et al). 2008;52:204–206 Arundhati (see Ghosh et al). 2008;52:733–735 Ashfaq R (see Patino et al). 2008;52:718–720 Ashraf MJ (see Azarpira et al). 2008;52:220–222 Ashraf MJ, Azarpira N, Vasei M, Tavakol MH, Khademi B. Thyroid Paraganglioma: Diagnostic Pitfall in Fine Needle Aspiration Biopsy. 2008;52: 745–747 (Letter) Assiri AH (see Mokhtar et al). 2008;52:169–177 Asthana AK (see Ghosh et al). 2008;52:733–735 Athanassiadou P, Grapsa D. Value of Endoscopic Retrograde Cholangiopancreatography–Guided Brushings in Preoperative Assessment of Pancreaticobiliary Strictures: What’s New? 2008;52:24–34 Azarpira N (see Ashraf et al). 2008;52:745–747 (Letter) Azarpira N, Ashraf MJ, Shishegar M. Fine Needle Aspiration Findings in Angiofollicular Hyperplasia with Eosinophilia: A Case Report. 2008;52:220–222