Year-end Sale % OFF 
Abstract
Eccrine porocarcinoma (EPC) is an extremely rare, adnexal carcinoma that represents less than 0.01% of all cutaneous malignancies. An aggressive tumour with a high recurrence rate, it has a tendency to metastasise to regional lymph nodes. Once metastasis has occurred, mortality rate increases to 75%-80% and thus survival is dependent on adequate and timely resection of the lesion. EPCs are frequently missed as a differential diagnosis due to their rarity and non-specific appearance, which can lead to serious consequences for patients. Consequently, EPCs are an important diagnosis for clinicians to be aware of and consider when evaluating cutaneous lesions. We present a case of EPC of the knee, which was initially misdiagnosed as a benign lesion on magnetic resonance imaging (MRI). We discuss the use of MRI in aiding assessment of EPCs.
Highlights
Malignant cutaneous adnexal neoplasms are broadly divided into four groups of eccrine, apocrine, mixed, and un-classified tumours
Eccrine porocarcinoma (EPC) is an extremely rare, adnexal carcinoma that represents less than 0.01% of all cutaneous malignancies
EPCs are frequently missed as a differential diagnosis due to their rarity and non-specific appearance, which can lead to serious consequences for patients
Summary
Malignant cutaneous adnexal neoplasms are broadly divided into four groups of eccrine, apocrine, mixed, and un-classified tumours. Eccrine porocarcinoma (EPC), first described by Pinkus and Mehregan in 1963, is a rare type of adnexal carcinoma which accounts for less than 0.01% of all cutaneous malignancies [1,2,3] It can present as a nodular, erosive plaque or polypoid growth that ulcerates. On re-presentation, the mass had increased in size and the patient was referred back to the plastic surgery department This time, the lesion was excised and sent for histology. A. Axial MRI of the right knee with gadolinium contrast showing a subcutaneous mass (see arrow) on the anterior aspect of the tibia and knee joint. Axial MRI of the right knee with gadolinium contrast showing a subcutaneous mass (see arrow) on the anterior aspect of the tibia and knee joint It consists of a large loculated mass containing some debris inferiorly, lying superficial to and separate from the infrapatellar tendon. The patient was regularly reviewed in the clinic until full wound healing was achieved and discharged to primary care with planned annual follow-up appointments for five years
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
