A Pediatric Case of Multiple Bilateral Symmetric Eccrine Angiomatous Hamartoma.

Eccrine angiomatous hamartoma (EAH) is a rare benign skin neoplasm characterized by an increased size and number of eccrine glands or ducts, along with proliferation of vascular structures in the dermis. This case is unique in its presentation of bilateral symmetrical nodules on both hands and the development of new nodules during puberty. It highlights the need for further research and understanding of this rare condition and its potential progression over time.

Ependymomas of the spinal region in adults: Clinical and pathological features and MYCN expression levels in spinal ependymomas and myxopapillary ependymomas.

Background: Ependymomas (EPNs) of the spinal region are a heterogeneous group of tumors that account for 17.6 % in adults. Four types have been recognized: subependymoma, spinal ependymoma (Sp-EPN), myxopapillary ependymoma (MPE), and Sp-EPN-MYCN amplified, each with distinct histopathological and molecular features.

Classification of H. pylori Infection from Histopathological Images Using Deep Learning.

Helicobacter pylori (H. pylori) is a widespread pathogenic bacterium, impacting over 4 billion individuals globally. It is primarily linked to gastric diseases, including gastritis, peptic ulcers, and cancer.

Assessing the diagnostic value of CAIX and ProEx-C in cervical squamous intraepithelial lesions.

Cervical squamous intraepithelial lesions (SILs) may present a diagnostic challenge due to their morphological similarity to benign conditions and variability in interpretation, necessitating the exploration of objective biomarkers to aid in their identification and grading. This study evaluates the immunohistochemical markers Carbonic Anhydrase IX (CAIX) and ProEx-C to assess their diagnostic potential in cervical SILs. We retrospectively identified 56 SIL cases, including 20 low-grade SILs (LSIL) and 36 high-grade SILs (HSIL), alongside a control group of nine chronic cervicitis cases.

Intraoperative pathologic diagnosis of central nervous system lymphomas: A comparison of frozen and permanent section diagnoses, and the significance of preoperative imaging.

Background: Central nervous system (CNS) lymphomas, either primary or secondary in origin, are rare malignant tumors affecting the brain, spinal cord, or leptomeninges. Diagnosis of CNS lymphomas is complicated by their diverse clinical presentations, radiological features, and histopathological characteristics. Although frozen section (FS) analysis is commonly employed for various CNS tumors, its role and accuracy in CNS lymphoma diagnosis are less explored.