Case Report

Histological Diagnosis Following Radiological Suspicion: A Case of Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma Masquerading as Duodenal Lesion

Number: Advanced Online Publication Early Pub Date: August 2, 2026

Histological Diagnosis Following Radiological Suspicion: A Case of Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma Masquerading as Duodenal Lesion

Abstract

Chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) is a common leukemia characterized by monoclonal B-cell proliferation. Extramedullary and extranodal manifestations can occur either in association with systemic CLL or as isolated lesions. Gastrointestinal (GI) tract involvement, however, is uncommon. These patients may be asymptomatic or present with chronic diarrhea, abdominal pain, and gastrointestinal hemorrhage. The prognostic significance of extramedullary CLL remains a matter of debate, although the prognosis in these patients appears to be more favorable in the era of novel targeted drugs. Herein, the case of a patient with a prior diagnosis of CLL undergoing observational follow-up without active therapy, who was found to have duodenal involvement on a biopsy performed following persistent dyspeptic complaints. We highlight the importance of considering GI symptoms when selecting the most appropriate treatment regimen.

Keywords

Ethical Statement

This manuscript does not contain any data that could identify the patient. The figures presented consist solely of anonymized histopathological microscopic images. Therefore, patient privacy is protected, and patient consent is not required for this article. This case report was presented as a poster presentation at the 5th Çukurova Internal Medicine Days between May 1 and 3, 2026.

References

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  2. Aje KT, Abegunde AT, Mirza K. Intestinal infiltration of chronic lymphocytic leukemia/small lymphocytic lymphoma found on screening colonoscopy. Cureus. 2022;14(1): e21037. doi:10.7759/cureus.21037.
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  4. Aje KT, Abegunde AT, Mirza K. S1984 intestinal infiltration of chronic lymphocytic leukemia/small lymphocytic lymphoma found on screening colonoscopy. Am J Gastroenterol. 2021;116:s868. doi:10.14309/01.ajg.0000781468.18167.ee.
  5. Guimaraes N, Bolais Monica I, Oliveira S, Pato Pais D, Andrade S, Bertao Colaco I, et al. Lymphoepithelioma-like gastric carcinoma and gastric involvement of chronic lymphocytic leukemia: two rare identities coexisting in one patient. J Med Cases. 2022;13(1):36-9. doi:10.14740/jmc3846.

Details

Primary Language

English

Subjects

​Internal Diseases

Journal Section

Case Report

Early Pub Date

August 2, 2026

Publication Date

-

Submission Date

April 13, 2026

Acceptance Date

July 29, 2026

Published in Issue

Year 2026 Number: Advanced Online Publication

APA
Hakyemez, S., Ulu Karasu, B., Özbaş, H. M., & Çınar, E. (2026). Histological Diagnosis Following Radiological Suspicion: A Case of Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma Masquerading as Duodenal Lesion. Cerasus Journal of Medicine, Advanced Online Publication. https://doi.org/10.70058/cjm.1928049
AMA
1.Hakyemez S, Ulu Karasu B, Özbaş HM, Çınar E. Histological Diagnosis Following Radiological Suspicion: A Case of Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma Masquerading as Duodenal Lesion. Cerasus J Med. 2026;(Advanced Online Publication). doi:10.70058/cjm.1928049
Chicago
Hakyemez, Sevinç, Bengisu Ulu Karasu, Hasan Mücahit Özbaş, and Esma Çınar. 2026. “Histological Diagnosis Following Radiological Suspicion: A Case of Chronic Lymphocytic Leukemia Small Lymphocytic Lymphoma Masquerading As Duodenal Lesion”. Cerasus Journal of Medicine, no. Advanced Online Publication. https://doi.org/10.70058/cjm.1928049.
EndNote
Hakyemez S, Ulu Karasu B, Özbaş HM, Çınar E (August 1, 2026) Histological Diagnosis Following Radiological Suspicion: A Case of Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma Masquerading as Duodenal Lesion. Cerasus Journal of Medicine Advanced Online Publication
IEEE
[1]S. Hakyemez, B. Ulu Karasu, H. M. Özbaş, and E. Çınar, “Histological Diagnosis Following Radiological Suspicion: A Case of Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma Masquerading as Duodenal Lesion”, Cerasus J Med, no. Advanced Online Publication, Aug. 2026, doi: 10.70058/cjm.1928049.
ISNAD
Hakyemez, Sevinç - Ulu Karasu, Bengisu - Özbaş, Hasan Mücahit - Çınar, Esma. “Histological Diagnosis Following Radiological Suspicion: A Case of Chronic Lymphocytic Leukemia Small Lymphocytic Lymphoma Masquerading As Duodenal Lesion”. Cerasus Journal of Medicine. Advanced Online Publication (August 1, 2026). https://doi.org/10.70058/cjm.1928049.
JAMA
1.Hakyemez S, Ulu Karasu B, Özbaş HM, Çınar E. Histological Diagnosis Following Radiological Suspicion: A Case of Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma Masquerading as Duodenal Lesion. Cerasus J Med. 2026. doi:10.70058/cjm.1928049.
MLA
Hakyemez, Sevinç, et al. “Histological Diagnosis Following Radiological Suspicion: A Case of Chronic Lymphocytic Leukemia Small Lymphocytic Lymphoma Masquerading As Duodenal Lesion”. Cerasus Journal of Medicine, no. Advanced Online Publication, Aug. 2026, doi:10.70058/cjm.1928049.
Vancouver
1.Sevinç Hakyemez, Bengisu Ulu Karasu, Hasan Mücahit Özbaş, Esma Çınar. Histological Diagnosis Following Radiological Suspicion: A Case of Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma Masquerading as Duodenal Lesion. Cerasus J Med. 2026 Aug. 1;(Advanced Online Publication). doi:10.70058/cjm.1928049

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