Peripheral neuroectodermal tumour (pnet) lung diagnosed by fnac: a rare case report

Chari, Brahmaiah KR and Singh, Brij Mohan Kumar and Nayak, Deepak M (2014) Peripheral neuroectodermal tumour (pnet) lung diagnosed by fnac: a rare case report. Journal of Evolution of Medical and Dental Sciences, 3 (22). pp. 5964-5968. ISSN 2278-4802

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We report a rare case of peripheral neuro-ectodermal tumor (PNET) in lung diagnosed by USG- guided FNAC in lung of a 19 year old male, who presented with cough, hemoptysis and pleuritic chest pain. CT chest showed a homogeneous mass in left posterior segment of lung with areas of necrosis. CT abdomen and bone scan studies were normal. Fine needle aspiration (FNA) revealed cellular smears comprised of small round blue cells arranged in rosettes, sheets, blue cells having fine chromatin, scant cytoplasm in an inflammatory background. Biopsy was advised for evaluation of small round blue cell to further typing and confirmation for further management. CT-guided trucut biopsy revealed lesion with small round blue cells had round nuclei, fine chromatin with scant cytoplasm arranged in sheets, rosettes in thin fibrous septae. Immunohistochemistry (IHC) showed malignant cells were positive for CD 99, synaptophysin and chromogranin and negativity for CD45 and Cytokeratin.

Item Type: Article
Uncontrolled Keywords: PNET-Peripheral neuroectodermal tumor; FNAC- Fine needle aspiration cytology; CT- Computerized tomography; USG- Ultra sonogram, IHC-Immunohistochemistry; CD-Cluster differentiation.
Subjects: Medicine > MMMC Manipal > Pathology
Medicine > KMC Manipal > Pathology
Depositing User: KMC Manipal
Date Deposited: 18 Jun 2014 10:46
Last Modified: 18 Jun 2014 10:46

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