Extrafacial indolent CD8-positive cutaneous lymphoid proliferation with unusual symmetrical presentation involving...

Area of Science:

• Dermatology and Oncology
• Cutaneous Lymphoma Research

Background:

• Indolent CD8+ cutaneous lymphoid proliferation is a recently identified subtype of cutaneous T-cell lymphoma.
• It typically manifests as solitary skin lesions on the face or extremities with an indolent clinical course.
• Histopathology reveals a dermal infiltrate of CD8+ T-cells with a clear grenz zone and low proliferation index.

Observation:

• An unusual case presented with bilateral, symmetrical lesions on both feet.
• This case lacked the characteristic grenz zone typically observed in this lymphoma subtype.
• The clinical presentation and histomorphology deviated from previously described cases.

Findings:

• The presented case expands the known spectrum of clinical and histomorphological variations of indolent CD8+ cutaneous lymphoid proliferation.
• The atypical features highlight the importance of considering broader differential diagnoses in cutaneous T-cell lymphomas.
• This case supports the classification of indolent CD8+ cutaneous lymphoid proliferation as a distinct entity.

Implications:

• The findings suggest that indolent CD8+ cutaneous lymphoid proliferation may present with diverse clinical and histological features.
• Recognition of these variations is crucial for accurate diagnosis and appropriate patient management.
• This research supports the inclusion of indolent CD8+ cutaneous lymphoid proliferation as a distinct entity in lymphoma classifications.