A 53-year-old woman with necrotising myopathy presenting with cough and respiratory distress: a diagnostic conundrum.

https://bit.ly/4kuMFMH.

Evaluation of Benign and Malignant Cervical Lymphadenopathy: A Comparative Study of Shear Wave Elastography and Grayscale Ultrasound.

 The aim of the study was to evaluate role of shear wave elastography (SWE) using a novel methodology for differentiation of benign and malignant cervical lymph nodes.  SWE was performed on 38 patients who presented with cervical lymph adenopathy. Color-coded elasticity maps were obtained, from which the stiffest region of interest (ROI) with a diameter of 2 mm was chosen.

Endobronchial Ultrasound-Guided Transbronchial Needle Aspiration Cytology: Navigating the Diagnostic Challenge between Tuberculosis and Sarcoidosis in Endemic Regions.

Objective: Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) plays an important diagnostic role in concealed pulmonary diseases. However, diagnosing sarcoidosis and differentiating it from tuberculosis is a diagnostic quandary. We, thus, aimed to evaluate EBUS-TBNA cytology in these cases in a tubercular-endemic zone.

The Great Mimicker: Langerhans Cell Histiocytosis Mimicking Autoimmune Polyendocrinopathy Candidiasis Ectodermal Dystrophy.

Langerhans Cell Histiocytosis (LCH) is a rare proliferative disorder of the Langerhans cells, often affecting multiple organ systems and mimicking conditions like autoimmune polyendocrinopathy candidiasis ectodermal dystrophy (APECED). This case report details a 3-year-old male, who presented with submandibular swellings, nail abnormalities, seborrheic dermatitis and systemic involvement, initially diagnosed as APECED syndrome clinically. Fine-needle aspiration cytology (FNAC) and immunohistochemistry confirmed LCH.

Fine-needle aspiration cytology of periarticular nodule - Atypical presentation of gouty tophi: A report of two cases.

Gout is a chronic arthropathy caused due to the deposition of monosodium urate crystals. Gouty tophus can be the initial presenting feature of gout with or without any clinical symptoms. Demonstration of urate crystals in synovial fluid or biopsy helps in confirming the diagnosis of gout.

Alveolar soft part sarcoma: A case report and review of the literature.

Alveolar soft part sarcoma (ASPS) is a rarely diagnosed tumour of deep soft tissue origin. This tumour is more common in adolescents and young adults and has a slowly progressive clinical course, which often leads to delayed diagnosis and treatment. It is highly vascular, can be confused with other entities like haemangiomas and arteriovenous malformations clinically and radiologically and is thus challenging to report on fine needle aspiration cytology (FNAC).

Cytomorphological spectrum of cysticercosis: A study of 26 cases.

Background: Cysticercosis is a systemic parasitic disease caused by the larval stage of Taenia solium. It is the most common parasitic disease worldwide. Fine needle aspiration cytology can play an important role in prompt recognition of this disease.

Cytological diagnosis of microfilariae in clinically unsuspected cases: A retrospective review of 12 cases.

Background: Filariasis is a major health problem in India. Despite the high prevalence, microfilariae are rarely found in cytology smears. Most of the cases are incidentally found, solely or in association with other pathologies.

Diagnostic utility of rapid on-site evaluation of endobronchial ultrasound-guided transbronchial needle aspiration samples: A study in a region of high tuberculosis burden.

Introduction: Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) has emerged as a very useful tool for precise diagnosis of thoracic lesions. However, the procedure sometimes has a poor yield. Rapid on-site evaluation (ROSE) in EBUS-TBNA has been shown to be helpful to improve its diagnostic yield and minimise the need for repeat procedures.

Papillary tumor in pineal region: Immunohistochemistry meeting the diagnostic challenge.

Papillary tumor of pineal region (PTPR) is extremely rare and poses diagnostic challenge with other central nervous system tumors having papillary architecture. Immunohistochemistry is crucial for a definitive diagnosis of PTPR.

Fine-needle aspiration of axillary swelling: Cytodiagnosis of an unusual presentation of filariasis.

Lymphatic filariasis is a major public health problem in tropical and subtropical countries. Fine-needle aspiration cytology (FNAC) is not routinely used for its identification. However, it has been detected incidentally, while doing FNAC for the evaluation of other lesions.

Cerebrospinal fluid cytology of choroid plexus tumor: A report of two cases.

Choroid plexus tumors (CPTs) are relatively uncommon tumors of the central nervous system, constituting approximately 5% of all pediatric brain tumors. Although squash cytology of CPT has been described in literature, shedding of tumor cells into cerebrospinal fluid (CSF) has rarely been described. We report two such cases of atypical choroid plexus papilloma in a 5-month-old male child and a 12-year-old female child, where characteristic cytomorphology of CPT was noted in the CSF.

Cytodiagnosis of Rosai-Dorfman disease masquerading as lymphoma: A case report with brief review of literature.

Rosai-Dorfman disease (RDD) or sinus histiocytosis with massive lymphadenopathy (SHML) is a self-limiting, benign histiocytic disorder. We report a case of RDD mimicking lymphoma clinically and cytologically in a 3-year-old male child. The present case highlights the importance of cytology in the diagnosis of RDD along with cytological features of other differential diagnoses.

Cytodiagnosis of extramedullary hematopoiesis in serous effusion: A rare presentation unfolding the underlying etiology.

Extramedullary hematopoiesis (EMH) usually involves reticuloendothelial system. However, it rarely may be present in the serous body effusions. In our case, the fluid cytology of both peritoneal and pleural fluid was diagnostic of the EMH in a patient with an undiagnosed underlying etiology.

Sinonasal malignant melanoma with metastasis: Immunohistochemistry meeting the diagnostic challenge.

Sinonasal malignant melanoma is one of the uncommon and highly aggressive tumors of the sinonasal cavity. Cytomorphological features in a metastatic lymph node may reveal a diagnosis of malignant melanoma. This case had nondiagnostic cytological and histopathological features, which could suggest malignant melanoma.

Dedifferentiated adenoid cystic carcinoma ex pleomorphic adenoma of the parotid.

Carcinoma ex pleomorphic adenoma (Ca ex PA) is defined as a carcinoma arising from a primary (de novo) or recurrent benign pleomorphic adenoma. The most common histological subtype is adenocarcinoma, not otherwise specified, salivary duct carcinoma, mucoepidermoid carcinoma, and adenoid cystic carcinoma (ACC). Few case reports of de novo dedifferentiation in ACC are there in the literature, mostly involving minor salivary glands.

Isolated Epitrochlear Filarial Lymphadenopathy: Cytomorphological Diagnosis of an Unusual Presentation.

Filariasis is a major public health problem in tropical countries like India. Despite the large number of people at risk, detection of eggs with or without larva (microfilaria) on fine-needle aspiration cytology is very unusual, especially in an uncommon site or incidentally detected in clinically unsuspected cases of filariasis with the absence of microfilariae in the peripheral blood. A 19-year-old male presented with swelling over medial aspect of left arm (just above the elbow), with no other specific signs and symptoms.

Primary cutaneous non-Hodgkin's lymphoma, clinically mimicking a soft tissue sarcoma.

Primary cutaneous B-cell lymphomas (PCBCL) are a heterogeneous group of neoplasms with distinct biology and clinical course when compared to their nodal counterparts. They usually present as violaceous, erythematous plaques, and nonulcerated nodules, which are confined to skin at the time of presentation. We present an unusual case of primary cutaneous diffuse large B-cell lymphoma, clinically mimicking a sarcoma.