Distinct morphologic, phenotypic, and clinical-course characteristics of indolent peripheral T-cell lymphoma

Peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS) consists of a heterogeneous group of lymphomas. Patients. generally show an aggressive clinical course and very poor outcome. Although the 2008 World Health Organization classification of PTCL-NOS includes 3 variants, low-grade lymphoma is not Included. Of 277 PTCL-NOS cases recorded in our consultation files, we examined the clinicopathologic characteristics of 10 patients with T-cell lymphomas composed of small-sized cells with slight nuclear atypia. Eight patients showed extranodal involvement (5 patients, spleen; 3 patients, thyroid), and 5 patients were at clinical stage I or II. Histologically, all samples presented diffuse infiltrate of small lymphoid cells, with few mitotic figures. Immunohistologically, all samples were positive for CD3, and CD:20 Was detected in 5 samples. All samples showed a low Ki-67 labeling index (mean, 1.05%), and 7 samples were positive for central memory T-cell markers. Clonal T-cell receptor gamma chain and/or alpha-beta chain gene rearrangements were detected in all 10 patients. Five patients received chemotherapy, whereas for 3 patients, treatment consisted only of observation following surgical resection of the spleen or thyroid. Nine patients were alive at a median follow-up time of 19.5 months, whereas 1 patient died of an unrelated disease. The present study strongly indicates that T-cell lymphoma with small-sized lymphoma cells and a low Ki-67 labeling index is a distinct variant. Recognition of this novel lymphoma subtype, which should not be defined merely as PTCL-NOS, should be seriously considered

Gluteal fold flap for pelvic and perineal reconstruction following total pelvic exenteration

Summary: Background: The rectus abdominis myocutaneous flap has been used as the first choice for pelvic and perineal reconstruction. However, due to previous abdominal surgery and multiple stoma placements in our patients, the rectus abdominis myocutaneous flap could not be used for such reconstruction. Here, we describe the use of bilateral gluteal fold flaps for pelvic and perineal reconstruction following total pelvic exenteration to treat recurrent cervical cancer. Methods: We performed three bilateral gluteal fold flap operations for perineal reconstruction in three patients between 2008 and 2011. The cause of the perineal defect was total pelvic exenteration, which was performed to treat recurrent cervical cancer in all patients. Results: All flaps completely survived and there were no severe postoperative complication. Good cosmetic results were achieved in all patients. Conclusions: The gluteal fold flap is a useful option for reconstructing extensive pelvic and perial defect after total pelvic exenteration because of sufficient soft tissue volume, reliable blood supply, cosmetic results and minimal donor-site morbidity. Keywords: Gluteal fold flap, Total pelvic exenteration, Pelvic reconstruction, Perineal reconstructio

Correction to: Intracellular hypoxia measured by F-18 fluoromisonidazole positron emission tomography has prognostic impact in patients with estrogen-receptor positive breast (BRCR-D17-00693)

After the publication of this article [1], we noticed that in Fig. 2, the survival curve images (C and D, lower panel) were incorrect. The corrected Fig. 2 is presented below. The correction does not affect in any our results and conclusions

Serial maps of tumor-bearing breast tHb and stO₂ on treatment.

<p>Serial maps of tumor-bearing breast tHb (A) and stO₂ (B) during bevacizumab treatment at baseline (day −1) and on days 1, 3, 6, 8, and 13 after the initiation of bevacizumab. The measurement points of stO₂ were exactly identical to those of tHb during treatment.</p