Tracheal extramedullary plasmacytoma: a rare cause of chronic cough.

Operative Rigid Bronchoscopy treatment.

Primary Effusion Lymphoma: Cytological Diagnosis of a Rare Entity--Report of Two Cases in HIV-Uninfected Patients from a Single Institution.

Background: Primary effusion lymphoma (PEL) is a Kaposi's sarcoma-associated herpesvirus (KSHV)-related large B-cell lymphoma often affecting immunocompromised adults. However, several cases in nonimmunocompromised elderly patients have been reported. It usually occurs as a massive, serosal effusion without tumoral masses and lymphadenopathies.

The morphological and immunohistochemical spectrum of gastric biopsies of patients with absorptive hypercalciuria.

Objective: Idiopathic hypercalciuria is characterised by renal stone formation and vertebral osteoporosis. The syndrome displays high clinical variability with patients almost equally distributed between fasting or renal type (prevalent calcium loss) and absorptive type (prevalent increase of intestinal absorption). Absorptive hypercalciuria (AH) is characterised by hypersensitivity of calcium-sensing receptors of antral G cells with normal fasting gastrinaemia and meal hypergastrinaemia.

Clear cell hidradenocarcinoma of the breast: a very rare breast skin tumor.

Hidradenocarcinoma is an uncommon malignant intradermal tumor of sweat gland origin with a predilection for the face and extremities. It is encountered equally in males and females, usually in the second half of life. These tumors tend to be locally aggressive.

Immunophenotype of sporadic and familial adenomatous polyposis associated fundic gland polyps: a mucin and MIB1 study.

Background: Fundic Gland Polyps (FGPs) are small sessile (2-5 mm) usually multiple polyps arising in the gastric, acid-secreting mucosa, described both in a sporadic form, prevalently in middle aged females, and associated with familial adenomatosis coli (FAP)-Gardner's syndrome and their attenuated variants (syndromic form).

Aims: We performed an immunohistochemical study on 5 syndromic (4 cases without and 1 case with dysplasia) and 28 sporadic FGPs, using monoclonal antibodies (MoAbs) against normal epitopes of fundic mucosa (Ck20, the surface gastric mucin M1, EMA, ChA), H. pylori and HLA-DR(Ia) antigens, CEA and mucin epitopes, and the Ki67 (MIB1) proliferation antigen, in order to establish the immunophenotype of FGPs; find any possible differences between sporadic and syndromic polyps.

Sporadic fundic gland polyps: clinico-pathologic features and associated diseases.

Background: Fundic gland polyps have been described either in association with genetic polyposis syndromes of the colon, or in a sporadic form. In the first case they are diagnosed during family screening in asymptomatic subjects, while sporadic FGP patients often complain of upper gastrointestinal symptoms. So far, no great attention has been paid to the clinical presentation of these patients, so we undertook a clinico-pathologic study to further delineate: the clinical presentation at 1st examination; the associated gastrointestinal conditions; a possible role of omeprazole; Helicobacter pylori (H.