Histomorphological and Immunohistochemical Analysis of Pleural Neoplasms.

Background & Objective: Primary pleural neoplasms are rare entities compared with the pleural involvement by metastatic carcinoma.The current study aimed at investigating the complete spectrum of pleural neoplasms and differentiating between them with the aid of immunohistochemistry (IHC).

Methods: Consecutive pleural biopsy specimens positive for a neoplasm, both primary and metastatic, were included in the study.

Correlation of COX- 2 Expression in Colorectal Carcinoma with Clinicopathological Features.

Objective: Colorectal carcinoma is the most common neoplasm of the gastrointestinal tract. COX-2 expression is upregulated in colorectal carcinoma. Therefore its assessment would identify patients amenable to adjuvant anticyclooxygenase therapy.

Soft palate schwannoma.

Schwannomas are relatively uncommon, slow-growing benign neoplasms that can arise from any cranial, peripheral or autonomic nerves. These neoplasms are derived from Schwann cells. The involvement of the palate is a rare presentation although there have been a few reported cases of schwannomas arising in the tongue.

Meckel syndrome with Caroli disease and choledochal cysts.

Meckel syndrome is a lethal autosomal recessive disorder characterized by the triad of cystic renal dysplasia, occipital encephalocele, or other anomaly of the central nervous system and post-axial polydactyly. Malformation of the ductal plate is an integral component of Meckel syndrome. Ductal plate malformations include congenital hepatic fibrosis, biliary hamartoma, autosomal dominant polycystic liver disease, Caroli disease, and choledochal cyst.

Testicular biopsies--histomorphologic patterns in male infertility.

The objective of the present study is to observe the spectrum of histopathological changes in the testicular biopsies of infertile men and to assess if a bilateral biopsy is required to reveal the pathology of infertility in every case or a unilateral biopsy would suffice. Thirty testicular biopsies (21 bilateral and 9 unilateral) were studied from 30 infertile men. The patterns of testicular damage seen in the present study were maturation arrest followed by hypospermatogenesis, Sertoli-cell only syndrome, tubular hyalinisation and one case was associated with normal histology.