Clinical Presentation
A 59-year-old woman presented with an ill-defined left breast mass, highlighting that cylindroma, typically found in the skin, can rarely occur in the breast [PMID:15581173].
Diagnosis
Fine needle aspiration cytology showed small, uniform cells with oval nuclei and finely granular cytoplasm, closely resembling adenoid cystic carcinoma, necessitating further biopsy for definitive diagnosis [PMID:15581173].
Aspiration cytology from dermal eccrine cylindromas can morphologically resemble adenoid cystic carcinomas, necessitating histopathologic confirmation [PMID:6306974].
Differential Diagnosis
The presence of globular, extracellular material in cytologic samples should prompt consideration of cylindroma, alongside other basaloid tumors like adenoid cystic carcinoma [PMID:15581173].
Due to overlapping cytologic features, dermal eccrine cylindroma must be included in the differential diagnosis alongside adenoid cystic carcinoma [PMID:6306974].
Management
To avoid unnecessary extensive surgery, a restricted excision should be performed to obtain histopathologic diagnosis in such cases [PMID:6306974].
References
1 Wang N, Leeming R, Abdul-Karim FW. Fine needle aspiration cytology of breast cylindroma in a woman with familial cylindromatosis: a case report. Acta cytologica 2004. link 2 Bondeson L, Lindholm K, Thorstenson S. Benign dermal eccrine cylindroma. A pitfall in the cytologic diagnosis of adenoid cystic carcinoma. Acta cytologica 1983. link
2 papers cited of 3 indexed.