Clinicopathological analysis of sclerosing angiomatoid nodular transformation in the spleen

Background: Splenic sclerosing angiomatoid nodular transformation (SANT) is a rare benign nodular lesion in the red medulla of the spleen. In the past, SANT has not been consistently recognized as the name for this condition and was often misdiagnosed for other conditions. In recent years, SANT has...

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Main Authors: Shufei Wei, Yongliang Han, Yingyong Hou, Liangliang Wang
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2023-07-01
Series:Indian Journal of Pathology and Microbiology
Subjects:
Online Access:https://journals.lww.com/10.4103/ijpm.ijpm_543_22
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author Shufei Wei
Yongliang Han
Yingyong Hou
Liangliang Wang
author_facet Shufei Wei
Yongliang Han
Yingyong Hou
Liangliang Wang
author_sort Shufei Wei
collection DOAJ
description Background: Splenic sclerosing angiomatoid nodular transformation (SANT) is a rare benign nodular lesion in the red medulla of the spleen. In the past, SANT has not been consistently recognized as the name for this condition and was often misdiagnosed for other conditions. In recent years, SANT has been acknowledged by most scholars as multiple reports have been published. Aim: To assess the clinicopathological features of SANT to identify the histological characteristics of SANT to improve diagnosis and clinical treatment. Materials and Methods: We assessed 25 cases of SANT diagnosed at Zhongshan Hospital affiliated with Fudan University from September 2014 to October 2021, including 14 men and 11 women, aged 24–62 years old. Results: Fourteen cases were complicated with benign tumors of the liver, pancreas, kidney, uterus, and prostate. One case was complicated with renal clear cell carcinoma, and one was complicated with hepatocellular carcinoma. The gross neoplasm is multinodular and well defined. Histologically, angiomatoid nodules are composed of fattened, round, or irregular blood vessels, with or without red blood cells in the lumen, with unequal red blood cell extravasation, and fibrocytes around the nodules. The hemangiomatous nodules were positive for CD31 and CD34, while the vascular wall smooth muscle cells and fibrocytes around the nodules were positive for SMA. Conclusion: The diagnosis of SANT requires a combination of immunohistochemical and histological features, and early splenectomy is crucial for treatment.
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spelling doaj-art-352c7442b395423b86d145426fa952dd2025-01-22T15:10:42ZengWolters Kluwer Medknow PublicationsIndian Journal of Pathology and Microbiology0377-49290974-51302023-07-0167110210610.4103/ijpm.ijpm_543_22Clinicopathological analysis of sclerosing angiomatoid nodular transformation in the spleenShufei WeiYongliang HanYingyong HouLiangliang WangBackground: Splenic sclerosing angiomatoid nodular transformation (SANT) is a rare benign nodular lesion in the red medulla of the spleen. In the past, SANT has not been consistently recognized as the name for this condition and was often misdiagnosed for other conditions. In recent years, SANT has been acknowledged by most scholars as multiple reports have been published. Aim: To assess the clinicopathological features of SANT to identify the histological characteristics of SANT to improve diagnosis and clinical treatment. Materials and Methods: We assessed 25 cases of SANT diagnosed at Zhongshan Hospital affiliated with Fudan University from September 2014 to October 2021, including 14 men and 11 women, aged 24–62 years old. Results: Fourteen cases were complicated with benign tumors of the liver, pancreas, kidney, uterus, and prostate. One case was complicated with renal clear cell carcinoma, and one was complicated with hepatocellular carcinoma. The gross neoplasm is multinodular and well defined. Histologically, angiomatoid nodules are composed of fattened, round, or irregular blood vessels, with or without red blood cells in the lumen, with unequal red blood cell extravasation, and fibrocytes around the nodules. The hemangiomatous nodules were positive for CD31 and CD34, while the vascular wall smooth muscle cells and fibrocytes around the nodules were positive for SMA. Conclusion: The diagnosis of SANT requires a combination of immunohistochemical and histological features, and early splenectomy is crucial for treatment.https://journals.lww.com/10.4103/ijpm.ijpm_543_22clinicopathological analysishistologicallysclerosing angiomatoid nodular transformation
spellingShingle Shufei Wei
Yongliang Han
Yingyong Hou
Liangliang Wang
Clinicopathological analysis of sclerosing angiomatoid nodular transformation in the spleen
Indian Journal of Pathology and Microbiology
clinicopathological analysis
histologically
sclerosing angiomatoid nodular transformation
title Clinicopathological analysis of sclerosing angiomatoid nodular transformation in the spleen
title_full Clinicopathological analysis of sclerosing angiomatoid nodular transformation in the spleen
title_fullStr Clinicopathological analysis of sclerosing angiomatoid nodular transformation in the spleen
title_full_unstemmed Clinicopathological analysis of sclerosing angiomatoid nodular transformation in the spleen
title_short Clinicopathological analysis of sclerosing angiomatoid nodular transformation in the spleen
title_sort clinicopathological analysis of sclerosing angiomatoid nodular transformation in the spleen
topic clinicopathological analysis
histologically
sclerosing angiomatoid nodular transformation
url https://journals.lww.com/10.4103/ijpm.ijpm_543_22
work_keys_str_mv AT shufeiwei clinicopathologicalanalysisofsclerosingangiomatoidnodulartransformationinthespleen
AT yonglianghan clinicopathologicalanalysisofsclerosingangiomatoidnodulartransformationinthespleen
AT yingyonghou clinicopathologicalanalysisofsclerosingangiomatoidnodulartransformationinthespleen
AT liangliangwang clinicopathologicalanalysisofsclerosingangiomatoidnodulartransformationinthespleen