Kruse AL Zwahlen R Bredell MG Riener MO Grätz KW 2010 BACKGROUND Apocrine hidrocystoma is an uncommon benign cystic proliferation of the apocrine sweat glands. Malignant melanoma, eccrine hidrocystoma, angioma, and follicular cysts have to be considered as differential diagnoses. METHODS AND RESULTS A 63-year-old man is presented with a dark mass measuring 2 x 2 cm on his right cheek. An exocrine tumor or, more unlikely, a melanoma was considered as a differential diagnosis. Pathologically, the lesion was determined to be an apocrine hidrocystoma. CONCLUSIONS This benign lesion can be excised by a narrow margin. Therefore, knowledge of this benign entity in head and neck surgery including the differential diagnosis can prevent an unnecessarily large defect by too large margins. application/pdf https://sonar.ch/global/documents/244157 eng info:eu-repo/semantics/altIdentifier/doi/10.1097/SCS.0b013e3181d08c77 info:eu-repo/semantics/altIdentifier/pmid/20489460 info:eu-repo/semantics/openAccess The Journal of craniofacial surgery. - 2010 Cheek Diagnosis, Differential Facial Neoplasms Follicular Cyst Hemangioma Hidrocystoma Humans Male Melanoma Middle Aged Skin Diseases Sweat Gland Neoplasms Apocrine hidrocystoma of the cheek. http://purl.org/coar/resource_type/c_6501