Internal medicine
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Epstein-Barr virus (EBV)-associated post-transplant lymphoproliferative disease (PTLD) is predominantly of B cell origin. The concept of clonal evolution from poly- to monoclonal lymphoproliferation has been put forward, but T-cell PTLDs are rare with an unknown etiology. ⋯ Interestingly, both manifestations exhibited identical monoclonal peaks in the T-cell receptor rearrangement polymerase chain reaction (PCR) analyses. These findings suggest the existence of clonal evolution in EBV-associated T-cell PTLD, leading to the proposal of the novel concept of polymorphic T-cell PTLD.
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We herein report an autopsy case of streptococcal toxic shock syndrome (STSS) with disseminated intravascular coagulation and multiple cerebral infarctions induced by Streptococcus dysgalactiae subsp. equisimilis in an 84-year-old male. Pathological examination revealed sepsis with hemophagocytosis in the reticular system and intravascular bacteria in multiple organs, originating from bacterial necrotizing fasciitis of the lower extremities. The brain MRI findings showed a diffusion weighted imaging-fluid-attenuated inversion-recovery mismatch, whereas the pathology was almost normal, thus supporting a hyperacute phase of cerebral infarction. The findings in this case help to elucidate the pathogenesis of STSS and develop appropriate treatment strategies.
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Although sarcoid-like reactions are uncommon in colorectal cancer, they can coexist with other cancers. We herein report a 50-year-old woman with sigmoid adenocarcinoma and osseous sarcoid-like reactions that resembled metastases. ⋯ Bone and lymph node biopsies revealed epithelioid non-caseating granulomas with bone trabeculae, resulting in a final diagnosis of pathological T2N2aM0, Stage IIIB. When the expected depth of invasion differs from that of typical bone metastases, colorectal cancer-associated bone lesions should be evaluated for sarcoid-like reactions.
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Objective The characteristics of gastric cancer in patients with atrophic mucosa and no apparent history of Helicobacter pylori eradication have not been thoroughly investigated. Therefore, this study examined the clinicopathological characteristics of gastric cancer in these patients. Methods We retrospectively examined the endoscopic and pathological characteristics of gastric cancer in patients who underwent endoscopic submucosal dissection. ⋯ Compared with group E, group A was older and had a greater incidence of elevated gastric cancer. The incidence of gastric cancer in the U or M region was lower in group C than in group D. Conclusion Gastric cancer in patients with gastric atrophy and no history of eradication was associated with an older age and higher frequency of elevated-type morphology than in those with a history of eradication.
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Objective The efficacy of anamorelin in pancreatic cancer (PC) patients with a poor performance status (PS) is uncertain, as previous trials have excluded such patients. This study evaluated the efficacy of anamorelin in PC patients with a poor PS (2) compared with those with a good PS (0-1). Methods We retrospectively reviewed consecutive PC patients with cachexia who received anamorelin at our institution. ⋯ A poor PS was associated with early discontinuation of anamorelin. Conclusion The efficacy of anamorelin is extremely limited in PC patients with a poor PS. Patients with PC with a poor PS may not be good candidates for anamorelin compared to those with a good PS.