異所性脾組織：限本性検体および術中コンサルテーションにおける診断上の課題
David Escobar1, Akram Shalaby2, Xiuli Liu3
1Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
International journal of surgical pathology
|February 25, 2026
まとめ
異所性脾組織は、生検において癌や炎症を模倣することがある。その多様な外観を認識し、CD8免疫染色を使用することが、正確な診断と適切な患者ケアの鍵となる。
科学分野:
- 病理学;組織学;腫瘍学
背景:
- 異所性脾組織の診断は、小検体では困難である。;誤診は、不適切な患者管理につながる可能性がある。;正確な同定は、臨床的意思決定にとって極めて重要である。
研究 の 目的:
- 異所性脾組織の臨床病理学的特徴を記述すること。;様々な検体タイプにおける診断上の落とし穴を強調すること。;診断における免疫組織化学の役割を強調すること。
主な方法:
- 41の異所性脾組織病変に関する多施設共同研究。;臨床病理学的特徴および画像所見の分析。;組織学的評価およびCD8免疫組織化学染色。
主要な成果:
- 異所性脾組織は、腫瘍性および炎症性疾患を模倣した。;放射線科は症例の17%のみで異所性脾組織を疑った。;CD8染色により、洞内皮細胞が強調され、診断が確定した。
結論:
- 異所性脾組織は多様な形態を示し、診断上の課題をもたらす。;模倣パターンの認識は病理医にとって不可欠である。;CD8免疫染色は、異所性脾組織の信頼性の高い診断ツールである。
関連する概念動画
01:30Endoscopic Studies I: Bronchoscopy and Thoracoscopy
Endoscopy is a non-surgical medical technique used to examine a person's internal organs and vessels. This lesson will focus on two types of endoscopic studies: bronchoscopy and thoracoscopy.
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due to...
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due to...
01:26Endoscopic Studies II: Thoracocentesis
Thoracentesis(Thoracocentesis), commonly known as pleural tap, is a medical procedure where a 22 gauge needle is inserted into the pleural space, the area between the lung and chest wall. This procedure is commonly performed to diagnose or treat various respiratory disorders.
Description
Excess pleural fluid or air may accumulate in some respiratory disorders in the thoracic cavity. To treat pleural effusion, a physician conducts thoracentesis by carefully piercing the chest wall and entering...
Description
Excess pleural fluid or air may accumulate in some respiratory disorders in the thoracic cavity. To treat pleural effusion, a physician conducts thoracentesis by carefully piercing the chest wall and entering...
01:26Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy
Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
01:26Endoscopic Procedures V: ERCP
Endoscopic Retrograde Cholangiopancreatography (ERCP) is a diagnostic procedure that combines endoscopy and fluoroscopy to diagnose and treat conditions related to the bile ducts, pancreatic ducts, and gallbladder. This procedure is beneficial for identifying and addressing blockages, gallstones, strictures, and tumors within the biliary or pancreatic systems. ERCP is both diagnostic and therapeutic, offering the ability to visualize and treat identified problems in one session.
Patient...
Patient...