Related Experiment Video
Updated: Sep 15, 2025
05:46
Implantation and Evaluation of Melanoma in the Murine Choroid via Optical Coherence Tomography
Published on: December 2, 2022
1.8K
Metastatic Intraparotid Balloon Cell Melanoma: A Diagnostic Challenge
Reed A McKinney1, Kerry B Baumann2, Robert D Foss3
1Department of Oral and Maxillofacial Pathololgy, Naval Postgraduate Dental School, Bethesda, MD, USA.
Head and Neck Pathology
|July 14, 2025
Summary
Balloon cell melanoma (BCM) is a rare variant that can mimic other cancers. Accurate diagnosis relies on understanding its specific histologic and immunophenotypic features.
Area of Science:
- Oncology
- Dermatopathology
Background:
- Balloon cell melanoma (BCM) is an uncommon cytomorphologic variant.
- BCM can mimic other neoplastic conditions, particularly without a known primary cutaneous lesion or limited immunohistochemical access.
Purpose of the Study:
- To present a case of metastatic balloon cell melanoma.
- To highlight diagnostic challenges and confirm findings with immunohistochemistry.
Main Methods:
- A case report of a 28-year-old male with a parotid gland mass.
- Surgical excision and subsequent histopathological workup.
- Immunohistochemical staining for BRAF, HMB45, Melan-A, PRAME, S100, and SOX-10.
Main Results:
- The parotid gland mass was diagnosed as metastatic balloon cell melanoma.
- No primary tumor site was identified despite extensive evaluation.
- Malignant cells showed positive staining for key melanoma markers.
Conclusions:
- Familiarity with the histologic and immunophenotypic findings of BCM is crucial.
- Accurate diagnosis can be ensured through comprehensive evaluation and appropriate staining.
- This case underscores the importance of considering BCM in parotid masses.
