Results 31 to 40 of about 6,108 (163)

Cytologic and Histologic Findings of Extrapleural Solitary Fibrous Tumor: Report of Two Cases

Diagnostic Cytopathology, Volume 54, Issue 2, Page E46-E53, February 2026.
ABSTRACT Solitary fibrous tumors (SFT) are a rare neoplasm of mesenchymal origin. SFT was previously described primarily in the pleura and meninges; however, extrapleural and extra‐meningeal SFT have been reported in almost every anatomic site and account for up to 40% of cases.
Michael Tyler, Katsiaryna Khatskevich, Chadi Hajar, Jack Yang, Hao Liu   +4 more
wiley   +1 more source

Surgical Treatment of Hemangiopericytoma in the Lip of a Filly: A Clinical Report [PDF]

Iranian Journal of Veterinary Surgery, 2017
Case Description: A 1.5-year-old filly weighing approximately 150 kg was presented to the clinic for a dense tumor-like mass on his lower lip. Clinical Findings: According to physical examinations, it was observed that the filly had a solitary, well ...
Ghasem Farjanikish, Azizollah Khodakaram-Tafti, Seifollah Dehghani Nazhvani, Mohsen Ghane   +3 more
doaj   +1 more source

ALK‐Positive Histiocytosis With Unilateral Breast Involvement: A Case Report

Clinical Case Reports, Volume 14, Issue 1, January 2026.
ABSTRACT APH is a rare disorder characterized by the proliferation of ALK‐expressing histiocytes with variable anatomical involvement; however, mammary involvement is exceptionally rare. A 32‐year‐old woman presented with a painless right breast mass. Ultrasound identified a 9 × 8 mm hypoechoic nodule, categorized as BI‐RADS 4A.
Xuechun Liu, Dong Ren, Yanfang Liang
wiley   +1 more source

Transcatheter Arterial Embolization Combined With Systemic Therapy for Metastatic Hormone–Sensitive Prostate Cancer Presenting as a Giant Pelvic Mass

Advances in Urology, Volume 2026, Issue 1, 2026.
Prostate cancer is the second most common malignant tumor among men. It often has an insidious onset and lacks specific clinical manifestations in the early stage. Most patients seek medical attention due to abnormal urination and are diagnosed through screening.
Zhipeng Yan, Chunhong Tang, Deqi Jiang, Heng Zhang, Baoqun Xu, Maokun Sun, Yi Sun, Yunji Sun, Sreeja Dattachoudhury   +8 more
wiley   +1 more source

Renal Hemangiopericytoma

Haseki Tıp Bülteni, 2015
Hemangiopericytoma is an uncommon perivascular tumor originating from pericytes in the pelvis, head and tneck, and the meninges; extremely rarely in the urinary system.
İbrahim Halil Bozkurt, Tarık Yonguç, Burak Arslan, Hakan Postacı, Bülent Günlüsoy, Tamer Şahin, Salih Polat   +6 more
doaj   +1 more source

A Sui Generis Report: Synchronous Mucinous Tubular and Spindle Cell Carcinoma of the Kidney and Invasive Breast Carcinoma

Case Reports in Pathology, Volume 2026, Issue 1, 2026.
Multiple primary malignant neoplasms (MPMNs) are rare entities characterized by the presence of two or more distinct primary malignancies in a single patient. Synchronous occurrence of invasive breast carcinoma and mucinous tubular and spindle cell carcinoma (MTSCC) of the kidney is a “sui generis” phenomenon, and besides, MTSCC is an exceedingly rare ...
Zachariah Chowdhury, Pallavi Majumdar, Ipsita Dhal, Sashank Saini, Sneha, Isha Makker, Suraiya Saleem   +6 more
wiley   +1 more source

Prenatal Detection of Congenital Hemangiopericytoma: Case Report and Systematic Review

Case Reports in Obstetrics and Gynecology, Volume 2026, Issue 1, 2026.
Congenital hemangiopericytoma (HPC) is a rare mesenchymal tumor of perivascular differentiation, characterized by prominent vascularity and heterogeneous clinical behavior in neonates. Prenatal diagnosis, particularly of intracranial lesions, is exceptional and poses significant diagnostic and management challenges.
Antonia Lettieri, Giuliana Orlandi, Olimpia Gabrielli, Luigi Manzo, Laura Letizia Mazzarelli, Giordana Sica, Letizia Di Meglio, Lavinia Di Meglio, Ferdinando Antonio Gulino, Carla Ettore, Giosuè Giordano Incognito, Attilio Tuscano, Maurizio Guida, Giuseppe Ettore, Aniello Di Meglio, Dani Ejzenberg   +15 more
wiley   +1 more source

Sinonasal Hemangiopericytoma

Ear, Nose & Throat Journal, 1994
Sino-nasal hemangiopericytomas are rare indolent mesenchymal tumors which slowly invade local tissue. Electronmicroscopy and immunohistochemical techniques may be necessary to differentiate hemangiopericytomas from other sarcomatous tumors. Differentiation between malignant and benign tumors poses a difficult task, therefore clinical correlation as ...
B, Millman, D, Brett, D P, Vrabec
openaire   +2 more sources

Congenital Infantile Fibrosarcoma of the Ileum in a 4‐Day‐Old Female Neonate Mimicking Intestinal Atresia: A Rare Case Report With Histopathological Insights

Clinical Case Reports, Volume 13, Issue 12, December 2025.
ABSTRACT Congenital infantile fibrosarcoma is a rare cause of neonatal intestinal obstruction that can mimic intestinal atresia. This case underscores considering CIFS in the differential diagnosis of intestinal masses in infants and highlights the role of comprehensive histopathological and immunohistochemical analyses in ensuring accurate diagnosis ...
Nooshin Zaresharifi, Azadeh Jafari, Anita Khalili, Amir Pirooz, Maryam Jafari   +4 more
wiley   +1 more source

Usefulness of Choline-PET for the detection of residual hemangiopericytoma in the skull base: comparison with FDG-PET

Head & Face Medicine, 2012
Background Choline is a new PET tracer that is useful for the detection of malignant tumor. Choline is a precursor of the biosynthesis of phosphatidylcholine, a major phospholipid in the cell membrane of eukaryotic cells.
Ito Shin, Yokoyama Junkichi, Yoshimoto Hitoshi, Yazawa Masaki, Kazuo Kubota, Hanaguri Makoto, Ohba Shinichi, Fujimaki Mitsuhisa, Ikeda Katsuhisa   +8 more
doaj   +1 more source