Oncocytic Lesions of Salivary Glands: Morphological, Immunohistochemical, and Molecular Findings.

The fifth edition of the World Health Organization (WHO) classification introduces new diagnostic methods based on genetic alterations, providing insight into the molecular basis of lesions. As a result, the classification system has evolved, new entities have been introduced, and existing entities have been reclassified. Oncocytic lesions of salivary glands are a group of neoplastic conditions characterized by the presence of oncocytic cells. These lesions present a diagnostic challenge due to their overlapping histological features. Therefore, a comprehensive evaluation, including morphological, immunohistochemical, and molecular analysis, is crucial for accurate diagnosis and appropriate management. Accurate classification of salivary gland pathologies is essential for selecting the appropriate treatment methods and predicting outcomes. The introduction of new therapeutic approaches, such as targeted therapies for malignant salivary gland tumors, has improved patient outcomes. However, to effectively implement these therapies in clinical practice, a clear classification of lesions is necessary.

Primary paratesticular embryonal rhabdomyosarcoma - An unusual presentation.

Paratesticular embryonal rhabdomyosarcoma (RMS) is a very rare and aggressive mesenchymal tumor. It is usually seen in children and adolescents presenting as a painless intrascrotal mass, localized in the paratesticular region. Hereby, we report two cases of paratesticular embryonal RMS in adults. One case was clinically suspected to be a testicular abscess, whereas the other presented with testicular swelling and lung metastasis. Localized forms have a good prognosis, whereas tumors presenting with metastases show a poor outcome. A treatment based on surgery and chemotherapy yields good results. Sperm cryopreservation and endocrine follow-up improve the overall survival and quality of life of these patients.

Management of traumatic displacement of LASIK flap.

Background: Although flap-based laser refractive surgeries are being extensively performed worldwide, complications due to the flap may occur years after the procedure leading to severe vision-threatening complications. Purpose: To describe the management of a case of traumatic displacement of a LASIK flap performed 8 years earlier. Synopsis: A 42-year-old male presented to us with complaints of decreased vision in his left eye following trauma with a toy gun sustained a day earlier. His best-corrected visual acuity was Counting fingers @ 2 m, and a slit-lamp evaluation revealed a LASIK flap with its temporal edge folded inwards. Flap repositioning was planned. The final surgical plan was interface irrigation with mechanical debridement, alcohol epitheliectomy, fibrin glue application, and bandage contact lens. His uncorrected visual acuity improved to 6/6, N6 at 5 weeks postoperatively, which was maintained at 8 months postoperatively along with a clear interface. Highlights: Traumatic displacement of LASIK flap years after the procedure is a known complication. However, simple flap repositioning may lead to various complications like epithelial ingrowth, DLK, astigmatism, etc., This video describes how to achieve anatomical and visual rehabilitation in such eyes without any long-term complications. Video link: https://youtu.be/QtWG9hEMsXM.

Study of Fine Needle Aspiration Cytology (FNAC) of Thyroid Gland According to the Bethesda System.

BACKGROUND:  Fine needle aspiration cytology (FNAC) of thyroid gland is a powerful diagnostic tool for thyroid nodules. The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) classifies thyroid FNAC findings into six categories. It is a standardized, simple, and convenient method of reporting which also provides guidelines for management. AIMS AND OBJECTIVES:  To study the cytomorphology of thyroid lesions and classify them as per TBSRTC. Determine the epidemiology and distribution of various thyroid lesions in our tertiary care hospital. Correlation of cytopathology with histopathological diagnosis in cases which were operated in our hospital. METHODS AND MATERIAL:  This is a prospective analytical study of 105 patients with clinically enlarged thyroid gland presenting at G.K. General Hospital, Bhuj during July 2018 to August 2020. FNAC smears of these patients were studied and correlated with histopathology wherever available. RESULTS:  Out of a total 105 cases, 94 were non-neoplastic, eight were neoplastic, and three were unsatisfactory for evaluation. There were 94 cases in the benign category (category II), with colloid goiter being the most common cytological diagnosis (38 cases). There were no cases in categories III and V, respectively. On cytology, two cases in category IV were diagnosed as follicular neoplasm. Category VI had six cases comprising papillary carcinoma of thyroid (five cases) and medullary carcinoma of thyroid (one case). Out of a total 105 cases, 55 patients were operated in our center and hence their cytopathological findings were correlated with histopathological findings. Out of 55 operated cases, 45 cases (81.8%) had benign lesion and 10 cases (18.2%) were malignant. The sensitivity of FNAC was 70% and specificity was 100%. CONCLUSIONS:  Thyroid cytology proves to be a reliable, simple, and cost-effective first-line diagnostic procedure with high patient acceptance and with rare, usually easily treated and not life-threatening complications. The Bethesda system is very useful for a standardized and reproducible system of reporting thyroid FNAC. It satisfactorily correlates with the histopathological diagnosis and helps in comparing results amongst various institutes.

Benign Chondroid Syringoma on Chin: A Case Report and Literature Review.

Chondroid syringoma is a cutaneous adnexal tumor originating from sweat glands origin. It is rare in occurrence and usually benign, having an incidence of 0.01 to 0.098%. As these tumors are uncommon, their diagnosis is missed many times and are misdiagnosed. Hence in any case of facial skin swelling increasing slowly in size, this entity should be kept in mind as one of the possibilities and differential diagnosis. Histopathological examination of the excision biopsy gives the definitive confirmatory diagnosis. Surgically excising the swelling locally along with a surrounding normal tissue cuff is the standard treatment given which prevents recurrence. Hereby we present a 35-year-old case of facial chondroid syringoma having a focal component of eccrine hidrocystoma, keratinous cyst as well as syringocystadenoma papilliferum on the chin that was clinically suspected to be an epidermoid cyst or mucocele.

Fine Needle Aspiration Cytology's Role in the Diagnosis of Ovarian Tumor.

Fine needle aspiration cytology (FNAC) is a cost-effective, minimally invasive technique for diagnosing a wide range of benign and malignant lesions. However, there are a number of reasons why its use is limited in the diagnosis of ovarian cancer, such as the fear of tumor cells spilling into the peritoneal cavity and the difficulty of subtyping with cytology alone. In experienced hands, FNAC is a safe, cost-effective procedure with acceptable diagnostic accuracy. In ovarian cystic lesions, secondary degenerative changes and the sample's low cellularity were the primary causes of false negative FNAC results. Preparing cell block can partially avoid this, so we recommend doing so. All of the clinical and sonographic findings, in addition to the FNAC findings, the preparation of the cell block, and the application of immunohistochemistry, need to be taken into consideration in order to arrive at an accurate diagnosis.

The Implication of New Developments in Hemophilia Treatment on Its Laboratory Evaluation.

Laboratories monitor hemophilia replacement therapy by specific coagulation factor measurement before and after the infusion of human-derived or recombinant factors. Bypassing agents are now used for patients with inhibitors. Recently, modified long-acting coagulation factors have been introduced, for which discrepant results may be expected when the measurement is performed with one-stage clotting or chromogenic assays. Currently, novel drugs not based on coagulation factors are being developed and further tested in clinical studies. These drugs do require new methods, and therefore, laboratory evaluation of hemophilia will undergo dramatic changes in the near future. Accordingly, present laboratory methods for monitoring, which include one-stage clotting or chromogenic assays, used to measure either factor VIII (FVIII) or factor IX (FIX), will not be sufficient. A thrombin generation test (TGT) or thromboelastometry may be used to monitor bypassing agents. For measuring modified long-acting coagulation factors, chromogenic assays will be probably more suitable than one-stage clotting assays. Novel drugs that are not based on coagulation factors, such as emicizumab, fitusiran, or concizumab, will require alternative methods.

Lipid-rich carcinoid of the appendix: A case report with review of literature.

The carcinoids are the most frequent tumors arising from the appendix, in majority of the cases, these are asymptomatic and are discovered after appendectomy. The lipid-rich carcinoid, also known as clear cell carcinoid; is histologically characterized by the presence of clear vacuoles in the cytoplasm of tumor cells. Only 24 cases of lipid-rich carcinoid of the appendix are described in the English literature, and there is no report of this entity in the Indian literature. In this report we describe a first case of lipid-rich carcinoid of the appendix in India and also present a review of the literature.