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Updated: Feb 10, 2026

Development of Compendium for Esophageal Squamous Cell Carcinoma
Published on: April 12, 2024
Coexisting squamous cell carcinoma and high-grade neuroendocrine carcinoma, small cell type: a rare collision in
Seema Kaushal1, Sandeep R Mathur1, Sunesh Kumar2
1Department of Pathology, All India Institute of Medical Sciences, New Delhi, India.
Abstract:
Collision tumours of the uterine cervix are extremely uncommon with exact incidence not known. Unlike squamous cell carcinoma (SCC) and adenocarcinoma that are known to coexist, small cell neuroendocrine carcinoma (SCNEC) is rarely documented with other histological types in the cervix. We report such rare case of a collision tumour in cervix displaying dual histological component of SCNEC and SCC in a 36-year-old woman. The case is being presented because of its rarity and represents a unique and hitherto seldom-reported combination of two malignant tumours with distinct and often contrasting epidemiology, histology and prognosis coexisting in the same patient.
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