1.Value of cell block technique as an adjunct to smear cytology in thyroid fine-needle aspiration biopsy
Nichole Andrea Bisquera ; Oliver Allan Dampil ; Bernadette Diane Vista
Philippine Journal of Pathology 2025;10(1):1-8
BACKGROUND
Thyroid fine-needle aspiration biopsy (FNAB) is widely used for thyroid nodule characterization, with approximately 2.7% of samples classified as "inadequate." Non-diagnostic samples pose limitations, resulting in repeated procedures, and unnecessary diagnostic thyroidectomies. Conventional smear (CS) is commonly the method of choice for cytologic preparation of thyroid FNAB. The cell block technique is an alternative that concentrates cells providing additional material for better evaluation and ancillary testing. While conventional smears are commonly used, introducing routine complementary cell blocks could potentially lower costs associated with repeat procedures and improve patient management.
OBJECTIVEThe study aimed to investigate the diagnostic value of incorporating the cell block technique as adjunct to conventional smear technique in reducing nondiagnostic rates (Bethesda Category I) in thyroid-fine needle aspiration biopsies (FNAB) conducted in 2 private hospitals.
METHODOLOGYThis is a multi-center, retrospective cross-sectional study with 701 samples from 528 adult patients, who underwent thyroid FNAB between January 2020 - September 2022. The primary outcome of interest is the reduction in non-diagnostic rates with the combined use of conventional smears and cell block.
RESULTSThe non-diagnostic rates were significantly higher with cell block technique (28.10%) as compared to conventional smears (16.26%), p-value < .01. The results show that conventional smears have lower non-diagnostic rates. With smear cytology alone, 114 (16.3%) of all samples were nondiagnostic. With the addition of cell block technique, 15 of these samples were reclassified as benign (n = 13), Bethesda III (n = 1) or Bethesda IV (n = 1). The rest of the non-diagnostic samples (n = 99) remained Bethesda I. Overall, the equivalent decrease in non-diagnostic rate was 2.1%.
CONCLUSIONThe combined use of cell block and conventional smears did not significantly decrease nondiagnostic rates in thyroid FNAB. In general, conventional smears demonstrated superior diagnostic efficacy across all Bethesda categories, establishing it as the preferred sampling preparation method for thyroid FNAB. Cell blocks should be considered a supplementary technique, particularly in cases where ancillary methods like immunohistochemistry or molecular testing are needed.
Biopsy, Fine-needle ; Thyroid Nodule ; Thyroid Gland ; Thyroid Diseases
2.Upgrade rate and associated predictive factors of papillary breast lesions on core needle biopsy in a private tertiary institution: A cross-sectional study
Manuelito Madrid ; Nicole Dominique Santos
Philippine Journal of Pathology 2025;10(1):17-25
OBJECTIVE
The aim of this study was to determine the upgrade rate in diagnosis of biopsy-proven papillary breast lesions on core needle biopsy and their respective surgical excisions, and to assess for predictive factors associated with an upgrade at St. Luke’s Medical Center – Global City.
METHODOLOGYA retrospective review of our institution’s database identified 184 papillary breast lesions diagnosed by core needle biopsy. The study population consisted of 71 samples that met the inclusion criteria. The overall upgrade and concordance rates were determined and analyzed if there was any significant association with clinical demographics, radiologic findings, and core diameter on gross examination. Continuous variables were presented as mean and median, and Shapiro-Wilk test was used to assess normality of data. Categorical variables were expressed as frequencies and percentages. Simple logistic regression analysis with Firth’s bias correction was performed to determine the variables associated with a diagnostic upgrade. P values ≤0.05 were considered statistically significant.
RESULTSA total 71 patients, all female, were included in the study. The overall upgrade rate was 8.45% (95% CI: 3.16-17.49%) in comparison with the diagnosis of the initial CNB and SE alone. This translated to 6/71 samples in this study. The overall concordance was 91.55% based on clinical significance, and an individual diagnosis concordance rate of 78.87%. None of the predictive factors (i.e., age, history of breast cancer, BI-RADS score, and gross core diameter) assessed showed an association with a diagnostic upgrade.
CONCLUSIONThe computed overall upgrade rate is within range of currently published literature. The concordance rates for both clinical significance and individual diagnosis were quite high, suggesting good reproducibility of histopathologic diagnosis within our institution. This was also found to be consistent with other studies. Of the predictive factors, none showed an association to a diagnostic upgrade. Despite the latter, our findings may be of value within the medical center in further exploring and expanding the data set at hand, such that it may hopefully contribute to local guidelines in managing PBLs in the future.
Papilloma ; Biopsy, Core Needle
3.Concordance of acid-fast stain result and histopathologic vs clinical diagnosis of leprosy: A three-year retrospective study in a Tertiary Government Hospital and Sanitarium in the Philippines
John Benjamin B. Gochoco ; Andrea Marie Bernales-Mendoza
Acta Medica Philippina 2024;58(Early Access 2024):1-7
Objectives:
In the Philippines, there has been a lack of information on the concordance between classifications
of Hansen’s disease or leprosy clinically, histopathologically, and with AFS results. The study ultimately aimed to
determine the concordance between the clinical diagnosis, histopathological results, and AFS results of patients with leprosy seen at the Dr. Jose N. Rodriguez Memorial Hospital and Sanitarium (DJNRMHS).
Methods
This is a descriptive, retrospective, single-center study conducted at the DJNRMHS, a tertiary government hospital and one of the last remaining sanitaria in the country located in northern Metro Manila in the Philippines. The study reviewed and included all the patient records from the years 2017-2019 which included skin biopsy results and slit-skin smear with AFS. Leprosy patients were then classified based on the following classifications: World Health Organization (WHO) and Ridley-Jopling classifications; and the concordance of clinical diagnosis vs the histopathologic findings and clinical diagnosis vs AFS results were determined using kappa testing.
Leprosy
;
Biopsy
4.Concordance of acid-fast stain result and histopathologic vs clinical diagnosis of leprosy: A three-year retrospective study in a Tertiary Government Hospital and Sanitarium in the Philippines
John Benjamin B. Gochoco ; Andrea Marie Bernales-Mendoza
Acta Medica Philippina 2024;58(23):42-48
Objectives:
In the Philippines, there has been a lack of information on the concordance between classifications of Hansen’s disease or leprosy clinically, histopathologically, and with AFS results. The study ultimately aimed to determine the concordance between the clinical diagnosis, histopathological results, and AFS results of patients with leprosy seen at the Dr. Jose N. Rodriguez Memorial Hospital and Sanitarium (DJNRMHS).
Methods
This is a descriptive, retrospective, single-center study conducted at the DJNRMHS, a tertiary government hospital and one of the last remaining sanitaria in the country located in northern Metro Manila in the Philippines. The study reviewed and included all the patient records from the years 2017-2019 which included skin biopsy results and slit-skin smear with AFS. Leprosy patients were then classified based on the following classifications: World Health Organization (WHO) and Ridley-Jopling classifications; and the concordance of clinical diagnosis vs the histopathologic findings and clinical diagnosis vs AFS results were determined using kappa testing.
Leprosy
;
Biopsy
5.Complete remission of palmoplantar psoriasis through phototherapy and topical steroids: A case report
Ana Dominique L. Españ ; a ; Wilsie Salas-Walinsundin ; Andrea Marie Bernales-Mendoza ; Criselda L. David ; Vilma C. Ramilo
Journal of the Philippine Dermatological Society 2024;33(Suppl 1):23-23
Palmoplantar psoriasis is a rare subtype of psoriasis. It is a chronic, relapsing, inflammatory, immunologically-mediated disease affecting the palms and soles.
This is a case of a 58-year-old female with multiple, well-defined, yellowish plaques on slightly erythematous base with some fissures on bilateral palmoplantar areas affecting 4% of body surface area. On Dermatology Life Quality Index, she scored 14. She was advised biopsy but deferred. The lesions were also tested with potassium hydroxide for fungal elements, yielding positive results. She was initially managed as tinea pedis et manuum with three pulse doses of oral antifungal medication for three months. With minimal improvement, patient finally consented for biopsy, confirming diagnosis of psoriasis. She was subsequently treated with potent topical corticosteroids and narrowband-ultraviolet B localized phototherapy, leading to a complete clearance of lesions after 16 weeks of steroid treatment and 52 sessions of phototherapy. There was no more erythema, plaques and fissures, with affected BSA down to 0% and DLQI score to 1. Three months post-treatment, there is still no recurrence of lesions.
Palmoplantar psoriasis is an uncommon variant of psoriasis featuring hyperkeratotic plaques and fissures limited to the palms and soles with associated significant functional impairment. It can be difficult to diagnose, often mistaken for other diseases, and is typically resistant to treatment with poor long-term remission. Biopsy plays a crucial part in the effective management especially among patients with refractory disease. There are numerous treatment modalities but psychosocial needs are equally important to be addressed.
Human ; Female ; Middle Aged: 45-64 Yrs Old ; Biopsy ; Corticosteroid ; Adrenal Cortex Hormones ; Phototherapy


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