Primary rectal mucosaassociated lymphoid tissuelymphoma masquerading asproctitis / Tejido linfoide asociado a la mucosa rectal primarialinfoma disfrazado deproctitis
Zhang, Jin-Yan; Fu, Bao-Zhong; Yin, Zhi-Kun; Li, Ji.
Rev. esp. enferm. dig
; 115(12): 744-745, Dic. 2023. ilus
Artículo
en Inglés
| IBECS (España) | ID: ibc-228734
A 29-year-old male presented with recurrent mucous bloody stools for more than a year. Colonoscopy revealed ill-defined, mildly congested and edematous mucosa with scattered erosion spots in the lower rectum, highly suspicious for proctitis. Histopathology showed diffuse infiltration of small to medium-sized lymphoid cells in the lamina propria. Immunohistochemistry indicated these cells were positive for CD20, CD79a, CD19, kappa and lambda light chains (partial), and negative for CD3, CD5, CD10, cyclin D and BCL-6. These results were consistent with mucosa-associated lymphoid tissue (MALT) lymphoma. Further investigations consisting of upper endoscopy, bone marrow biopsy, and whole-body PET/CT scan did not detect any extrarectal lesions. Based on these findings, the diagnosis of stage I primary rectal MALT lymphoma was made. The patient underwent 15 fractions of radiotherapy with a total dose of 30 Gy. His symptoms were alleviated following the treatment. A follow-up colonoscopy performed 3 months later showed complete resolution of the lesion.(AU)
Biblioteca responsable:
ES1.1
Ubicación: ES15.1 - BNCS
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