Ocular surface characterization after allogeneic stem cell transplantation: A prospective study in a referral center.

Purpose: To characterize anatomical and functional changes in the ocular surface after hematopoietic stem cell transplantation. Methods: Three groups of patients were included in the study. Group 1: patients who had undergone allogeneic hematopoietic stem cell transplantation (HSCT) (n = 26). Group 2: patients who developed chronic graft versus host disease (GvHD) after HSCT (n = 14). Group 3: healthy subjects (n = 20). A complete ophthalmological examination was undertaken in all subjects, including Schirmer's test, TBUT (break-up-time) test, Oxford scale, OSDI test, corneal tomography, and conjunctival CD8+ lymphocyte detection. Results: In Branch 1 (comparative analysis before and after HSCT in Group 1), statistically significant differences were found in the following variables: best-corrected visual acuity (BCVA) OD (P = 0.08), OSDI test (P = 0.003), TBUT OU (OD P= 0, OS P= 0.0003), Oxford test OU (OD P= 0.01, OS P= 0.0049), and CD8+ lymphocytes OU (OD P= 0.003, OS P= 0.01). In Branch 2 (comparative analysis between Group 2 and 3), the variables with statistically significant differences (P < 0.001) in OU were: BCVA, OSDI test, Schirmer's test OU, TBUT test, Oxford test, and CD8+ lymphocytes. Finally, in Branch 3 (comparative analysis between Group 1 after HSCT and Group 2), statistically significant differences (P < 0.001) were found OU: in OSDI test, Schirmer's test, and Oxford test OU; and with P < 0.005 in TBUT test OU. Conclusion: In our study, statistically significant changes were observed in the OSDI test, TBUT test, Oxford Scale, and the detection of CD8+ lymphocytes in patients who underwent HSCT. Differences were more significant in those patients who had developed GvHD after HSCT compared to those without GvHD.

Clinical and radiological study of three cases of aggressive course testicular lymphomas.

OBJECTIVE: To describe the clinical and radiological features, and the role of imaging in diagnosis and extension study of testicular lymphoma (TL). METHODS: Testicular and inguinal color Doppler ultrasound, extension-study Multidetector Computed Tomography (MDCT), and Doppler ultrasound and MDCT in an upper extermity metastasis were performed. RESULTS: Case 1: A 65-year-old man with TL 11 years ago, recurrence in the contralateral testis 5 years later, orbital involvement at 8 years and currently recurrence in the arm with ulnar nerve infiltration. Case 2: A 44-year-old man with TL and metastatic inguinal lymphadenopathy. Case 3: An 85 year-old man with TL, retroperitoneal lymph nodes and obstructive uropathy. Histological subtype: B-cell non-Hodgkin's lymphoma. CONCLUSIONS: TL typically presents as an aggressive disease with contralateral testicular involvement and spreading to regional lymph nodes and non-contiguous extranodal sites. The main radiological techniques are Doppler ultrasound for the study of the primary disease and MDCT in the evaluation of disease extension. Diagnosis is usually obtained after orchiectomy by histological study, and despite the aggressive treatment modalities (surgery associated with radiotherapy or chemotherapy) prognosis remains poor.