Primary malignant melanoma of the esophagus combined with squamous cell carcinoma: A case report

Abstract

BACKGROUND Primary malignant melanoma of the esophagus is a rare malignant tumor of the esophagus, and its combination with squamous cell carcinoma is also rare. Here, we report the diagnosis and treatment of a case of primary esophageal malignant melanoma combined with squamous cell carcinoma. CASE SUMMARY A middle-aged man underwent gastroscopy for dysphagia. Gastroscopy revealed multiple bulging esophageal lesions, and after pathologic and immunohistochemical analyses, the patient was finally diagnosed with "malignant melanoma with squamous cell carcinoma". This patient received comprehensive treatment. After one year of follow-up, the patient was in good condition, and the esophageal lesions seen on gastroscopy were controlled, but unfortunately, liver metastasis occurred. CONCLUSION When multiple esophageal lesions are present, the possibility of multiple pathological sources should be considered. This patient was diagnosed with primary esophageal malignant melanoma combined with squamous cell carcinoma.

Nano‐Scale Interface Engineering of Sulfur Cathode to Enable High‐Performance All‐Solid‐State Li–S Batteries

“…Nuclear magnetic resonance (NMR) spectroscopy experiments were carried out to further investigate the impact of the LPO coating. As shown in Figure 3e, the 1D 6 Li magic angle spinning (MAS) NMR spectra display the three resonances with chemical shifts of 0.14, 0.64, and 2.35 ppm, representing Li in LPO coating, LPS, and Li 2 S, respectively. After lithiation of LPO@AB/S-LPS cathode, Li + environment attributed to LPS and Li 2 S is observed in the 1D spectra.…”

“…[3][4][5] All-solid-state lithium-sulfur batteries DOI: 10.1002/adfm.202315925 (ASSLSBs), which use sulfide solid-state electrolyte (SSE) instead of flammable liquid electrolytes, eliminate the shuttling effect of soluble polysulfides, thereby achieving higher safety and longer cycling life. [6][7][8][9] However, sulfur cathodes still face several urgent challenges that hinder the application of high-energy ASSLSBs. The lack of intermediate soluble polysulfides and the electronic/ionic insulation of S and Li 2 S lead to the slow reaction kinetics of the sulfur cathode.…”

“…d) Fitted lines of cathodic and anodic peak currents versus square root of scan rates. e) 1D6 Li MAS spectra of the LPO@AB/S, LPS, Li 2 S, and LPO@AB/S-LPS materials. f) Schematic illustration of the role of the LPO coating between C/S and SSE.…”