Case Report: Advanced breast invasive ductal carcinoma with erysipeloid cutaneous metastasis misdiagnosed as erysipelas

by myneuronews

Case Presentation

A 56-year-old female presented with a complex medical history that ultimately led to a peculiar dermatological manifestation. Initially, she sought medical attention due to redness, swelling, and pain localized to the left breast and surrounding areas. Clinicians noted the acute onset of this rash, characterized by its well-defined borders and a warm, raised appearance, which partially obscured the underlying breast tissue.

Upon examination, the patient revealed significant discomfort and had a notable history of stage II breast cancer. Despite previous treatments, including lumpectomy and radiotherapy, the recurrent symptoms raised concerns about potential metastasis. The physical examination indicated lymphadenopathy in the left axillary region, and her systemic review revealed no other significant findings at the time.

Further investigation through imaging revealed several irregular lesions in both the left breast and the axillary lymph nodes. The appearance on ultrasound suggested a malignant process rather than an infectious one. The dermatologist was consulted due to the striking similarity of the presentation to erysipelas, a common skin infection caused by bacteria, leading to misattribution of her symptoms.

The patient underwent a biopsy of the skin lesion, which showed atypical ductal carcinoma cells suggesting metastatic spread from her underlying breast neoplasm. This unexpected finding was crucial, as it pointed toward an advanced stage of her breast cancer, ultimately leading to the diagnosis of erysipeloid cutaneous metastasis stemming from the primary breast invasive ductal carcinoma.

Despite a thorough review of her symptoms, the crossover in presentation between metastatic disease and common skin infections created a diagnostic challenge, complicating her clinical management.

Diagnostic Challenges

The diagnostic process for this case was fraught with complexities due to the overlapping clinical features of erysipelas and cutaneous metastases from breast cancer. Erysipelas, characterized by its distinctive superficial skin involvement often accompanied by fever and systemic signs, can sometimes mimic the presentation of metastatic lesions. The initial misinterpretation of the breast and axillary manifestations as an infectious process resulted in a delay in the proper diagnosis.

Clinicians faced several hurdles in differentiating between a primary skin infection and the more insidious symptoms of cancer metastasis. The acute onset of redness and swelling led to a presumptive diagnosis of erysipelas, which is typically caused by beta-hemolytic streptococci. Given the patient’s significant medical history, the team also considered the possibility of localized infection related to her previous cancer treatment, as post-surgical complications can masquerade as infectious processes.

Moreover, the diagnostic imaging was crucial in this case. The ultrasound findings of irregular, hypoechoic lesions in the breast raised a red flag; however, the clinical impression remained skewed towards infection due to the prominence of the visible rash. This underscores a frequent challenge in oncology — the differentiation between infectious conditions and those that reflect disease progression or metastasis.

Despite both the clinical and imaging exams signalling malignancy, the initial approach focused on empirical treatment for erysipelas, further delaying access to appropriate oncologic interventions. In retrospect, the dermatological characteristics, including the sharply demarcated borders of the rash, should have prompted a more aggressive diagnostic investigation, including skin biopsy and potentially advanced imaging techniques, to ascertain the true nature of the lesions.

Another dimension to this diagnostic challenge was the patient’s systemic status; the lack of prominent inflammatory or infectious symptoms typically associated with bacterial infections further clouded the diagnostic picture. This highlights the importance of a comprehensive approach combining clinical acumen, thorough history-taking, and an inclusive differential diagnosis that considers the full spectrum of possible conditions based on the patient’s oncological background.

In this case, the biopsy ultimately provided clarity, revealing the atypical ductal carcinoma cells and confirming that the cutaneous findings were not infectious, but rather reflections of advanced disease. This outcome serves as a poignant reminder of the essential role that histopathological evaluation plays in resolving diagnostic ambiguities, particularly in patients with complex medical histories. Future cases may benefit from heightened awareness and suspicion when dealing with similar presentations, ensuring that similar instances of misdiagnosis are minimized in the clinical setting.

Treatment Outcomes

Following the confirmation of cutaneous metastasis through biopsy, a comprehensive treatment plan was formulated to address both the metastatic breast cancer and the associated skin involvement. The patient’s oncology team opted for a multidisciplinary approach, recognizing the need to integrate various therapeutic modalities tailored to her advanced disease state.

The initial step in her management was the initiation of systemic therapy aimed at controlling the progression of the cancer. Given the patient’s history of invasive ductal carcinoma, a regimen involving a combination of chemotherapy and targeted agents was proposed. Specifically, the team decided on administering a taxane-based chemotherapy regimen, which has been shown to be effective in treating metastatic breast cancer, particularly in cases with significant lymphatic involvement and visceral disease. Furthermore, the incorporation of targeted therapies, such as CDK4/6 inhibitors, was considered, aimed at improving the patient’s overall prognosis and quality of life. These agents work by interfering with the cancer cell cycle, thus preventing rapid tumor growth.

Throughout her treatment, the patient was closely monitored for both efficacy and possible adverse effects associated with chemotherapy. This was crucial, as individuals suffering from advanced cancer often experience significant side effects that can impact their performance status and overall well-being. Frequent assessments were conducted to evaluate symptom burden, particularly monitoring for any signs of infection, given her previous misdiagnosis.

In parallel to systemic therapy, addressing the cutaneous manifestations was essential for improving the patient’s quality of life. The dermatological team recommended palliative radiotherapy targeted at the skin metastases. This intervention aimed to reduce the tumor burden rapidly and alleviate symptoms such as pain and discomfort, which the patient was experiencing due to the skin lesions. Radiotherapy has been effective in treating localized skin involvement from metastatic disease by inducing tissue necrosis and promoting a quicker response than systemic therapy alone.

The patient’s response to the combined treatment strategy was regularly evaluated through imaging studies, which indicated a reduction in both cutaneous lesions and lymphadenopathy. The improvement in her dermatological symptoms was notable, with significant regression of the erysipeloid-like lesions, allowing for better skin integrity and comfort.

Additionally, supportive care measures were implemented concurrently to manage any potential side effects from systemic treatment. This included nutritional support, pain management, and psychological counseling. The holistic approach aimed to ensure that the patient not only received effective cancer treatment but also maintained a satisfactory quality of life during a challenging period.

Despite the aggressive treatment regimen, the overall prognosis remained variable, typical of advanced breast cancer cases with cutaneous metastasis. Nevertheless, the combination of effective systemic therapy and palliative measures resulted in a significant albeit temporary improvement, highlighting the importance of comprehensive care in managing complex cases of cancer where misdiagnosis can lead to treatment delays and potentially altered outcomes. Furthermore, this situation stresses the need for continuous education among healthcare providers regarding the overlapping features of metastatic disease and common dermatological conditions, ultimately aiming to enhance early detection and timely intervention strategies within oncological practices.

Conclusion and Recommendations

The misdiagnosis of erysipeloid cutaneous metastasis as erysipelas in this patient underscores a critical lesson in clinical practice, emphasizing the necessity for meticulous diagnostic evaluation when faced with complex presentations. Healthcare providers, particularly in oncology and dermatology, must maintain a high index of suspicion for metastatic disease in patients with a known cancer history, particularly when presenting with unusual skin symptoms.

To prevent similar diagnostic pitfalls, it is recommended that clinicians employ a multi-faceted approach incorporating comprehensive patient histories, rigorous physical examinations, and targeted investigations such as imaging and biopsies. The utilization of imaging modalities should not solely rely on superficial clinical features but should be complemented by an understanding of the patient’s oncological background.

Further, educational initiatives aimed at enhancing awareness among healthcare professionals regarding the overlapping clinical features of dermatological conditions and metastatic disease are paramount. Regular seminars, workshops, and inter-disciplinary case discussions could promote better understanding and foster collaborative assessments, ensuring that diagnostic accuracy is prioritized even in challenging cases.

For patients, continuous patient education on the implications of their medical histories is vital. They should be encouraged to report any new or changing symptoms promptly and participate actively in discussions regarding their signs and symptoms, enabling more informed clinical evaluations.

In addition, the implementation of decision-making algorithms in clinical settings could serve as valuable tools for healthcare providers. These algorithms could guide practitioners through the diagnostic process, prompting necessary investigations when certain clinical indicators suggest metastasis rather than infection.

In conclusion, the integration of comprehensive evaluations, continuous education for providers, and enhanced communication with patients can significantly improve diagnostic accuracy. This approach not only fosters timely interventions but also enhances the overall management of patients with complex medical histories such as those involving advanced malignancies.

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