BACKGROUND: Identification of disseminated nontuberculous Mycobacteriuminfection is a challenge, especially when it occurs in patients without a known cause ofimmunosuppression. Acid-fast organisms in the pleural fluid are rare and easily missed, especiallywhen they occur in patients without a clinical suspicion of infection. (more…)
BACKGROUND: Juvenile hyaline fibromatosis (YHF) is a rare inherited disordercharacterized by tumorous growth of hyalinized fibrous tissue. No report on cytomorphology of thiscondition is available in English on MEDLINE. CASE REPORT: A 6-year-old girl had multiple nontendernodules on both ear lobes, nose and scalp. (more…)
BACKGROUND: Multifocal nodular oncocytic hyperplasia (MNOH) is a rare lesionof the parotid gland. Fine needle aspiration cytology (FNAC) in MNOH has not been describedpreviously to the best of our knowledge. (more…)
BACKGROUND: Mast cell proliferations are commoner in dogs than in humans;mass forming lesions in the former are apt to fine needle sampling and the obtained cytopathologicalpicture might be informing to enhance recognition of similar proliferations in humans. (more…)
BACKGROUND: The hepatoid variant of yolk sac tumor (H-YST) is an exceedinglyrare and highly malignant neoplasm. We present and discuss our experience with cytologic andhistopathologic features of a mediastinal H-YST presenting with sternum metastasis, which to thebest of our knowledge has not been previously reported. (more…)
BACKGROUND: Micropapillary carcinoma is a variant of adenocarcinoma describedin many anatomic sites and most recently in the lung. (more…)
BACKGROUND: Kaposi’s sarcoma (KS) is a vascular malignant tumor characterizedby human herpesvirus 8 infection of neoplastic cells. Diffuse cutaneous lesions represent theclassical clinical presentation. (more…)
BACKGROUND: Extrapulmonary Pneumocystis carinii (EPC) infection is anuncommon condition, regardless of HIV status, and can occur as a complication of P carinii pneumonia(PCP). However, PCP is the most common severe opportunistic infection in patients with AIDS. Theincidence of EPC is variable, and in HIV-1-infected individuals it has been estimated to be0.06-2.5%. CASE: (more…)
