[Thymic mucosa-associated lymphoid tissue (MALT) lymphoma developing during long-term follow-up for Sjögren's syndrome and idiopathic thrombocytopenic purpura;report of a case].

Mucosa-associated lymphoid tissue (MALT) lymphoma is a rare type of lymphoma that arises in small CD20-positive lymphocytes. We encountered a case of thymic MALT lymphoma treated with surgical intervention during long-term follow-up for Sjögren's syndrome and idiopathic thrombocytopenic purpura (ITP). Although symptomatic remission of Sjögren's syndrome and ITP had already been achieved, the levels of anti-SSA and anti-SSB antibodies remained high. Chronic stimulation by these antibodies may contribute to the development of MALT lymphoma. A careful follow-up may be indicated for this case with a complex immunological background.

Epidermoid cyst of the cecum resected by single-incision laparoscopic colectomy: a case report.

BACKGROUND: Epidermoid cyst arising from the cecum is extremely rare. Single-incision laparoscopic surgery is the latest innovation in minimally invasive surgery, and shortens incisions, improves cosmesis, and reduces postoperative pain. We report here the first description of a patient with epidermoid cyst of the cecum treated by ileocecal resection by single-incision laparoscopic surgery. CASE PRESENTATION: A 20-year-old woman presented to our hospital with abdominal pain in the right lower quadrant. Abdominal contrast-enhanced computed tomography showed a 56 × 35-mm cystic mass in the ileocecal area. Magnetic resonance imaging revealed a 56 × 43-mm, T1-hypointense, T2-hyperintense mass attached to the cecum. Gastrointestinal tumor or duplication cyst was suspected, and ileocecal resection was performed using single-incision laparoscopic surgery. Intraoperative examination showed the tumor as a round, whitish mass arising from the cecum. Operation time was 162 min, and intraoperative blood loss was 10 ml. Macroscopic examination showed a 56 × 45-mm elastic-hard, whitish, round mass arising from the cecal wall. Microscopic examination revealed the cyst wall lined by keratinized stratified squamous epithelium. No malignant findings were identified. The final diagnosis was epidermoid cyst of the cecum. The postoperative course was uneventful and she was discharged on postoperative day 5. CONCLUSIONS: A rare case of cecal epidermoid cyst is reported. Single-incision laparoscopic colectomy using an organ retractor represents a promising option for treating cecal epidermoid cyst.