Bronchiolar adenomas (BA) - A detailed radio-pathologic analysis of six cases and review of literature.

Bronchiolar adenomas (BAs)/ciliated muco-nodular papillary tumors (CMPTs), are small, peripheral lung nodules arising predominantly in the elderly that follow a benign course. They can be mistaken for adenocarcinomas on frozen section. Immunohistochemistry (IHC) for basal cell markers highlights the continuous layer of basal cells underlying the tumor cells in BAs.

Lost in the Clinics and Found in the Morgue: A Case of Peripheral T-cell Lymphoma Masquerading as Pneumonia.

In modern medicine, there is an increasing dependence on noninvasive imaging modalities, for diagnosis and management of diseases. Though there are definite advantages to this, they are at times offset by diagnostic pitfalls especially in entities with elusive clinical presentation.Peripheral T-cell lymphoma-not otherwise specified (PTCL-NOS) is an aggressive subtype of T-cell lymphomas that does not meet criteria for a specific subtype.

Primary Histiocytic Sarcoma in Adult Polycystic Kidney Disease: Case Report and Review of Literature.

Genetically driven tissue destruction followed by remodeling in adult polycystic kidney disease (APKD) raises the possibility of malignant transformation. Renal cell carcinoma (RCC) associated with APKD has been frequently reported in the literature; however, only a few cases of nonepithelial neoplasms arising in APKD have been described so far. Histiocytic sarcoma (HS) is a lymphohematopoietic malignant neoplasm that accounts for less than 1% of hematologic malignancies.

Paraduodenal Pancreatitis: A Deceptive Abdominal Mass with Unique Histologic Findings.

Paraduodenal pancreatitis (PP) is an uncommon abdominal pathology characterized by scarring of the pancreaticoduodenal space. Diagnosis of this inflammatory process is challenging as its clinical presentation is similar to that of pancreatic cancer. Currently, no definitive radiologic or pathologic features have been established to permit diagnosis of PP without surgical resection.

Pontocerebellar Hypoplasia Maps to Chromosome 7q11.23: An Autopsy Case Report of a Novel Genetic Variant.

Pontocerebellar hypoplasias are a group of autosomal recessive neurodevelopmetal disorders with varied phenotypic presentations and extensive genetic mutational landscape that are currently classified into ten subtypes. This classification is based predominantly on the genetic iterations as the phenotypic presentations are often broad and overlapping. Pontocerebellar hypoplasia type-3 (PCH3) is an autosomal recessive disorder characterized by a small cerebellar vermis, hyperreflexia, and seizures, described in Middle Eastern families in association with a homozygous truncating mutation of the gene in locus 7q11-21.