Synchronous Primary Low-grade Mucosa-associated Lymphoid Tissue Lymphoma of Colon and Stomach

Gastrointestinal tracts are the most frequently involved sites of mucosa-associated lymphoid tissue (MALT) lymphoma. Stomach is the most common site of involvement among the gastrointestinal tract. Simultaneous occurrence of primary gastric and colonic MALT lymphoma is rarely reported. We report a case of synchronous double primary MALT lymphoma of the colon and stomach in a healthy subject. A 62-year-old male underwent an esophagogastroduodenoscopy and colonoscopy for medical checkup. An endoscopic examination of the stomach showed an erythematous mucosa in the great curvature of the lower body. The endoscopic finding of the colon was a flat elevated lesion in the sigmoid colon. Microscopic examinations revealed MALT lymphoma and gastric Helicobacter pylori infection. We performed imaging studies to evaluate distant metastasis and confirmed that there is no other metastasis. The patient was treated with H. pylori eradication therapy and CHOP (cyclophosphamide, doxorubicin, vincristine, prednisone) chemotherapy. He had not experienced any recurrence since the treatments, and reached a complete remission state after six months.

Hepatocolic Fistula after Radiofrequency Ablation for Hepatocellular Carcinoma / 대한내과학회지

Radiofrequency ablation (RFA) is a relatively safe therapy for patients with hepatocellular carcinoma (HCC); however, complications are not unknown. A hepatocolic fistula is a rare complication after RFA. We report a case of a hepatocolic fistula following a liver abscess after RFA for HCC in a 58-year-old male. The patient was diagnosed with HCC and liver cirrhosis from hepatitis B infection 3 years prior to admission. The HCC was in segment 6 of the liver and was treated with transarterial chemoembolization and RFA. One month after the second RFA, he was diagnosed with a liver abscess, for which he was treated with antibiotics for 2 months, but continued to have intermittent fever and chills. We made a diagnosis of hepatocolic fistula using colonoscopy, fluoroscopy, and liver dynamic computed tomography. The patient underwent a surgical procedure after antibiotic therapy. Although a hepatocolic fistula is a rare complication following RFA, clinicians should be aware of its existence.

Two cases of cecal lymphoma causing intussusception / 대한내과학회지

Adult intusussception is a rare entity and this usually has a definable cause. We describe here two cases of adult patients with ileocolic intussusception that was secondary to a lymphoma of the cecum. The one patient was a 23-year-old man. We diagnosed ileocolic intussusception by performing abdominal computed tomography. At laparotomy, a 5.0 x 5.0 cm polypoid tumor was found in the cecum. Histologic examination disclosed the diffuse large B-cell lymphoma. The other patient was a 32-year-old man. Preoperatively, we diagnosed intussusception in the ileocolic lesion by performing a barium study and computed tomography. At laparotomy, a 3.1 x 4.0 cm tumor was found in cecum, and histologic examination revealed the diffuse small noncleaved type lymphoma (Burkitt's lymphoma). So far as we are aware, this is the first report of a Korean adult patient with intussusception that was secondary to a cecal lymphoma, and it was not secondary to an ileal lymphoma.