Deficiency of the LIM-only protein FHL2 reduces intestinal tumorigenesis in Apc mutant mice.

Background: The four and a half LIM-only protein 2 (FHL2) is capable of shuttling between focal adhesion and nucleus where it signals through direct interaction with a number of proteins including beta-catenin. Although FHL2 activation has been found in various human cancers, evidence of its functional contribution to carcinogenesis has been lacking.

Methodology/principal Findings: Here we have investigated the role of FHL2 in intestinal tumorigenesis in which activation of the Wnt pathway by mutations in the adenomatous polyposis coli gene (Apc) or in beta-catenin constitutes the primary transforming event.

[Langerhans cell histiocytosis in an adult patient associated with sclerosing cholangitis and cerebellar atrophy].

Langerhans' cell histiocytosis is a disorder in children or young adults, characterized by clonal proliferation of histiocytic cells, staining for CD1a, with uni or multifocal organ involvement. It's a rare condition in adults. We report a case of Langerhans' cell histiocytosis in an adult with sclerosing cholangitis which rapidly progressed to fatal liver failure and progressive cerebellar atrophy.

Primitive neuroectodermal tumor of the stomach.

Ewing sarcoma/primitive neuroectodermal tumor is classically a tumor of the soft tissue or bone in children and young adults, but several cases have been described in patients of all ages. Within the last decade, the clinicopathologic spectrum of Ewing sarcoma/primitive neuroectodermal tumor has been markedly expanded by recognition that the tumor may also have a visceral origin. We describe a case of primitive neuroectodermal tumor arising in the stomach of a 66-year-old woman.

[Unusual parosteal osteochondromatous proliferation or Nora's tumor. A clinicopathological analysis of 4 cases].

Nora's lesion, also known as bizarre parosteal osteochondromatous proliferation (B.P.O.

[Postmenopausal frontal fibrosing alopecia. Report of 3 cases].

Postmenopausal frontal fibrosing alopecia is a rare aspect of scarring alopecia concerning elderly women. It appears as a receding anterior hair line localised in the frontal and temporal regions. It is a particular pathologic and clinical form of lichen planopilaris.

[Renal tuberculosis and renal adenocarcinoma: a misleading association].

The association of renal cancer and renal tuberculosis is uncommon. While the incidental discovery of renal cell carcinoma in a tuberculous kidney is a classical finding, the discovery of tuberculous lesions after nephrectomy for cancer is exceptional. The authors describe the case of a patient operated for renal cancer in whom histological examination revealed associated renal tuberculosis.