Intramedullary lesion: Answer

An atypical pigmented lesion—Answer

Intramedullary diffuse tubercular lesion resembling glioma.

Sir, Of the various forms of spinal tuberculosis, intramedullary spinal tuberculomas (IMT) are least common (2/100,000 of all tuberculosis).1 We recently encountered a case, which was diagnosed as glioma after imaging was done, leading to neurosurgical intervention, which later turned out to be a tubercular lesion. This case report underscores the importance of keeping a high degree of suspicio...

Intramedullary osteosclerosis: An incidental sclerotic lesion in a trauma patient

Intramedullary osteosclerosis, a rare entity, is usually diagnosed after the exclusion of more sinister etiologies. It typically affects the lower extremity and is more common in females. While the lesion may be discovered incidentally during imaging, presenting symptoms may include pain in the affected bone that is exacerbated with physical activity. Laboratory values are normal, and the lesio...

Dermatoscopy: A multicolored lesion on the forehead—Quiz Answer

Basal cell carcinoma (BCC) is the most frequent type of skin cancer in humans. Non-pigmented BCCs are much more prevalent than pigmented BCCs. Sometimes it could be difficult to distinguish a pigmented BCC from a melanoma [1]. Menzies et al. suggested a dermatoscopic method with a sensitivity of 93% and a specificity of 89% for diagnosing pigmented BCCs (See Table) [2,3]. The correct answer to ...

An atypical pigmented lesion on the nose—Answer

PCSCC is a variant of invasive squamous cell carcinoma, with less than 20 cases reported, to our knowledge, in the English literature [1,2]. PCSCC had been more often reported to occur in the oral mucosa and conjunctiva [3]. Pigmentation is probably due to cytokines secreted by tumoral cells that stimulate melanocytes to produce melanin [4]. In some cases, PCSCC may be the malignant progression...