A Case of Mammary-Type Myofibroblastoma Occurring in the Inguinal Region.

Mammary-type myofibroblastoma (MTMF) is a rare benign tumor of mesenchymal cells that occurs in the inguinal region, abdominal wall, buttocks, back, and vaginal wall. When a soft tissue mass develops in the inguinal region, there may be a risk of misdiagnosing it as an inguinal hernia, especially if it is asymptomatic. We report a rare case of mammary-type myofibroblastoma occurring in the inguinal region.

Concentrically expanded reversed halo sign caused by nivolumab-related pneumonia.

Among immune-related adverse events, pneumonitis is relatively uncommon, and nivolumab-related pneumonitis may present with a reversed halo sign.

[Role of peritoneovenous shunt therapy in end-of-life care of refractory malignant ascites cases].

The short- and long-term outcomes of 34 patients with refractory malignant ascites who underwent peritoneovenous shunt (PVS) therapy were retrospectively reviewed. The primary disease was gastrointestinal cancer in 31 patients and gynecologic cancer in 3 patients. Regarding performance status, 21 patients had Eastern Cooperative Oncology Group Performance Status (PS) 2 and 13 patients were PS 3;thus, many were in a poor general condition.

Synchronous double primary cancers of the extrahepatic bile duct: A case report and literature review.

Background: Double cancers of the biliary tract system are rare. Most of these cancers are synchronous double cancers of the gall bladder and bile duct, associated with pancreaticobiliary maljunction (PBM). Synchronous double cancers of the extrahepatic bile duct without PBM are especially rare, and only 4 cases have been reported.

Gastric mixed adenoneuroendocrine carcinoma with thyroid transcription factor-1-positive neuroendocrine component.

Small cell carcinoma of the stomach, which is considered synonymous with neuroendocrine carcinoma, is rare. We encountered a case of mixed adenoneuroendocrine carcinoma. Gastrointestinal endoscopy revealed a type 0 IIa + IIc lesion in the stomach.

Sigmoid colon perforation induced by the vascular type of Ehlers-Danlos syndrome: report of a case.

The vascular type of Ehlers-Danlos syndrome (vEDS) is a rare inherited disease of the connective tissues, and is caused by abnormal type III collagen resulting from heterogeneous mutations of the type III collagen COL3A1 gene. We herein report the case of a vEDS patient who developed a sigmoid colon perforation and was given a definitive diagnosis by a genetic and biomolecular assay. The patient demonstrated clinical manifestations caused by tissue weakness such as frequent pneumothorax events and a detached retina.

Placement of an expandable metallic stent improves the efficacy of chemoradiotherapy for pancreatic cancer with malignant portal vein stenosis or obstruction.

Background: Advanced or recurrent pancreatic cancer can sometimes cause obstruction or stenosis of the portal vein (PV), resulting in various symptoms of portal hypertension (PH), such as ascites, pancytopenia, hemorrhagic tendencies and liver dysfunction. We placed an expandable metallic stent into the PV to improve PH-associated complications and liver function. The placement of the PV stent was beneficial for administering chemotherapeutic agents and radiotherapy (RT) safely, and resulted in an improved response rate (RR) and survival.

High incidence of synchronous or metachronous breast cancer in patients with malignant and benign thyroid tumor or tumor-like disorders.

Background: Although many reports indicated an association between thyroid diseases and breast cancer, such an association still remains controversial. The present study was aimed to clarify the association of thyroid diseases with the breast cancer incidence. In the patients with benign and malignant thyroid tumor or tumor-like disorders, the incidence of other malignancies was surveyed, and the frequency of thyroid cancer in patients with breast cancer was also surveyed.