Registration now Available!
2024 PPS Biennial Meeting
June 20-22, 2024
New York University
New York City, USAA

Member registration ($540 until 5/1/24, $590 after)
Non member registration (
$740 until 5/1/24, $790 after)

Welcome Reception

PPS Biennial Dinner - register now (limited to 120)

Hotel accomodations

Submit an abstract ! (deadline April 12)

Biennial Meeting Program

February Case of the Month Clinical History: An 84-year-old woman with a history of smoking was found to have a 7.6 cm mass in the right lower lobe with satelite lesions and FDG-avid thoracic lymphadenopathy. Endobronchial ultrasound sampling of the 4R lymph node showed an abnormal population of small to intermediate-sized cells arranged in solid nests and rosettes with prominent crush artifact (Figure 1). The cells show high nuclear to cytoplasmic ratios, nuclear molding, scant cytoplasm, and fine chromatin with occasional indistinct nucleoli (Figure 2). Mitotic forms and apoptotic forms are easily identified. Work-up demonstrates diffuse keratin AE1/AE3 expression (Figure 3), whilst antibodies directed against synaptophysin, chromogranin, INSM1, p40, desmin, MyoD1, and TTF-1 (Figure 4) are non-reactive. There is focal membranous staining for CD56 (Figure 5). POU2F3 is positive (Figure 6). Ki-67 is over 90%.

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In Memoriam:
Giulio Rossi, MD

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Upcoming Meetings

2024 PPS
Biennial Meeting
June 20-22, 2024
New York University
New York City, USA

Registration now available!
Non members

Dinner Registration
Hotel accomodations

Abstract (available soon)
Call for mystery cases

Biennial meeting program


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2022 PPS Lifetime Achievement Award
Professor Kevin Leslie, MD
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