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A common tumour at an uncommon site: A giant pigmented basal cell carcinoma, a diagnostic challenge
Vidhya Venkatesan1 , Jessica Minal2 , Nikhil Pudhu Veetil3 , Kanna Sandhyarani Mahadev4 , Archana Shetty5
1- Faculty of Dr Chandramma Dayananda Sagar Institute of Medical Education & Research, Dayananda Sagar University , Bengaluru, India.
2- Faculty of Dr Chandramma Dayananda Sagar Institute of Medical Education & Research, Dayananda Sagar University, Bengaluru, India.
3- Dept of Pathology, PES University Institute of Medical Sciences and Research, Konappana Agrahara, Electronic City, Bengaluru , India , nikhil.pv16@gmail.com
4- Dr Chandramma Dayananda Sagar Institute of Medical Education & Research, Dayananda Sagar University
5- Faculty of Dr Chandramma Dayananda Sagar Institute of Medical Education & Research, Dayananda Sagar University, Bengaluru, India
Abstract:   (786 Views)
Background: Basal cell carcinoma is the most common skin cancer. It accounts for 80% of all non melanoma skin cancers. It most commonly occurs in the sun exposed areas. 0.094% of the cases alone occur at the inguinal region. Case report: A 70 years old male with left inguinal region swelling for 6 months diagnosed as malignant melanoma both with clinical and cytological features and finally as pigmented basal cell carcinoma by histopathology and immunohistochemistry. Conclusion: All pigmented lesions are not melanoma. Pigmented basal cell carcinoma is an important differential for malignant melanoma irrespective of the site, size and clinical picture. We take this opportunity to reiterate the chances and reasons for the misdiagnosis of Basal cell carcinoma in the cytology smears.
Keywords: Giant basal cell carcinoma, Malignant Melanoma, Non melanoma skin cancers, Hedgehog signalling pathway
Full-Text [PDF 648 kb]   (216 Downloads)    
Research Article: Case Report | Subject: Pathology
Received: 2025/01/29 | Accepted: 2025/10/6
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