Introduction. The term adverse local tissue reactions (ALTRs) is used to describe pathologic conditions appearing after total joint replacement, and it includes osteolysis, bone necrosis, muscle cystic lesions, excessive fluid collections, soft masses, pseudotumors, metal sensitivity, metallosis, chronic inflammatory lesions. ALTRs are rarely described in the literature breakage of ceramic comp...

We report the genetic, phenotypic, and biochemical analyses of Catecholamines up (Catsup), a gene that encodes a negative regulator of tyrosine hydroxylase (TH) activity. Mutations within this locus are semidominant lethals of variable penetrance that result in three broad, overlapping effective lethal phases (ELPs), indicating that the Catsup gene product is essential throughout development. M...

Yellowfin goby Acanthogobius flavimanus affected with X-cell pseudotumors were sampled from a river estuary in Tokyo Bay, Japan. We amplified the gene for small subunit ribosomal RNA (18S rRNA) of X-cells of the goby with PCR using universal primers. The gene that we obtained (DDBJ Accession no. AB451874) showed 91% sequence identity to that of the X-cells of the flathead flounder Hippoglossoid...

Introduction: Inflammatory myofibroblastic pseudotumors are initially described in the lung and various extrapulmonary sites such as the orbits, palatine tonsils, ears, gingiva, pterygomaxillary space, and periodontal tissues. These tumors rarely involve the larynx and predilection to the glottis occurs in an indolent manner.   Case Report This case describes a laryngeal myofibroblastic tumor i...

It is estimated that 35% of total hip arthroplasties (THAs) involve a second-generation metal-on-metal (MOM) prosthesis. A novel complication has appeared in a subset of patients with MOM THAs that is described as an aseptic, lymphocyte-dominated vasculitis-associated lesion (ALVAL). The clinical features of ALVAL are nonspecific, but patients complain of pain and may develop "pseudotumors." It...

Received May 2006 Accepted February 2007 INTRODUCTION Inflammatory pseudotumor of the bladder is a rare benign proliferative lesion that resembles a neoplastic tumor.(1-5) Most of the tumors of the bladder are malignant, and transitional cell carcinoma is the most common malignant tumor; however, other tumors such as adenocarcinoma, squamous cell carcinoma, sarcoma, and teratoma have to be incl...

From 1974 to 1988, we experienced 36 benign tumors or tumor-like lesions of the lung out of 721 thoracotomies performed for the treatment of lung tumors. There were 21 hamartomas, nine inflammatory pseudotumors and six sclerosing hemangiomas. On average patients were in their fifth or sixth decade, which was somewhat younger than that for bronchogenic carcinoma. Marked female predominance was n...