Revised Bethesda System for Reporting Thyroid Cytology: Lessons learned from an appraisal of 5 years of experience in a central hospital.

Objective: The Bethesda System for Reporting Thyroid Cytology (BSFRTC) is widely adopted in the management of thyroid nodules. The system was updated in 2017, and its impact is the subject of this paper.

Methods: All thyroid fine needle aspirations from 2016-2020 using the BSFRTC, with follow-up surgical pathology, were reviewed.

Cytological clues in the distinction between phyllodes tumor and fibroadenoma.

Background: Fine-needle aspiration (FNA) sensitivity in discriminating between phyllodes tumor and its benign mimicker fibroadenoma (FA) remains low. Because a preoperative categorization of phyllodes tumor is crucial for their appropriate management, the authors undertook this study in an effort to improve the outcome of FNA by identifying reliable distinguishing features.

Methods: FNA smears from 15 and 12 histologically proven cases of phyllodes tumor and FA, respectively, were reviewed.

Esophageal trachealization: a feature of eosinophilic esophagitis.

Eosinophilic esophagitis (EE) is an inflammatory condition characterized by intense eosinophilic infiltration of the esophagus. EE is frequently misdiagnosed as gastroesophageal reflux disease. Here, we present a child with EE and a characteristic endoscopic finding, "ringed esophagus".

Three cases of malacoplakia of the gallbladder.

Malacoplakia is a granulomatous disease with a histiocytic infiltrate containing calcified bodies called Michaelis-Gutmann bodies considered to represent an abnormal response to infection involving defective lysosomes and abnormal microtubular assembly. The disease most frequently involves urinary and genital tracts, but has also been described from most organs. Reports from the gallbladder are extremely rare and as it might simulate specific infection, parasitic infestation as well as malignancy it is of importance for the surgeon and pathologist to be aware of the entity.

Mast cells in testicular lesions.

The study was performed on orchidectomized tissue and testicular biopsies sent for histopathological examination which included; 9 cases of orchitis, 6 pyocele, 9 haematocele, 13 seminomas, 5 embryonal cell carcinoma, 2 teratocarcinoma, 2 lymphoma, 4 yolk sac tumor, 17 infertility lesions and 6 normal. Toluidine blue stained sections were examined under high power magnification (hpm) and the number of mast cell present in 10 consecutive fields was counted. There was a considerable variation in the number and distribution of mast cells in various testicular lesions.

Fine needle aspiration cytology of head and neck masses. Seven years' experience in a secondary care hospital.

Objective: To study the value of fine needle aspiration (FNA) in the diagnosis of head and neck masses in a secondary care hospital.

Study Design: FNA from 225 patients with head and neck masses were reviewed. The results were analyzed, according to anatomic location, into 3 groups: inflammatory, congenital and neoplastic.

Follicular thyroid lesions coexisting with Hashimoto's thyroiditis: incidence and possible sources of diagnostic errors.

Our objectives were to study the types and incidence of thyroid follicular lesions coexisting with Hashimoto's thyroiditis (HT), the pitfalls in their cytodiagnosis, and the effect on management. All cases of HT diagnosed by fine-needle aspiration (FNA) and/or histology over a 7-yr period were retrospectively studied. HT coexisted with follicular adenoma (FA) in 6 cases, follicular variant of papillary carcinoma (FVPC) in 1 case, and goitrous nodule (GN) in 2 cases.

Fine-needle aspiration cytology of metastatic nasopharyngeal carcinoma in cervical lymph nodes: comparison with metastatic squamous-cell carcinoma, and Hodgkin's and non-Hodgkin's lymphoma.

Our objective was to study the cytomorphological features of metastatic nasopharyngeal carcinoma (NPC) as compared to squamous-cell carcinoma (SCC) of nonnasopharyngeal origin, Hodgkin's lymphoma (HL), and non-Hodgkin's (NHL) lymphoma in the neck lymph nodes. The aim of this study was to find simple cytological criteria using routine stains that can help in differentiating between these entities. All fine-needle aspiration (FNA) smears of metastatic NPC, SCC, HL, and NHL from neck nodes available in our files were included in this study.

Pattern and incidence of cancer in Northern Saudi Arabia.

Objective: To study the pattern and incidence of cancer in the Al-Jouf region of Saudi Arabia.

Methods: The record of all confirmed cancer cases were retrieved and studied from the files of the Histopathology and Cytology Department, Prince Abdulrahman Al-Sudairy Central Hospital, Al-Jouf, Kingdom of Saudi Arabia (KSA) during the period 1994 to 2001. The major types of cancer were ranked in order of relative frequency.