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Pink nodule with a peculiar pattern on trichoscopy.

Ankad BS, Beergouder SL, Shaik MA - Int J Trichology (2013)

View Article: PubMed Central - PubMed

Affiliation: Department of Dermatology, Siddavanahalli Nijalingappa Medical College, Navanagar, Bagalkot - 587 102, Karnataka, India. E-mail: drbsankad@gmail.com.

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Examination revealed a single, sessile, erythematous nodule measuring 1 × 1 cm with lobulated surface located over parietal region of scalp [Figure 1]... Various trichoscopy patterns have been studied, which help in diagnosis of hair disease and nontumoral scalp disorders... However, there is paucity of trichoscopy studies in benign and malignant tumors of scalp... It presents as a solitary, rapidly growing, papule or polyp that bleeds easily after minor trauma... It is very important to confirm the diagnosis by microscopy... Dermoscopy can aide in preoperative diagnosis of this benign tumor... Seven exclusive patterns were made up from the combination of the structures observed like ‘reddish homogeneous area’ (RHA) histologically corresponding to presence of numerous small capillaries or proliferating vessels, ‘white collarette’ (WC) corresponds to the hyperplastic adnexal epithelium that partially or totally embraces the lesion at the periphery, ‘white rail lines’ (WRL) correspond histologically to the fibrous septa that surround the capillary tufts and ‘vascular structures’ (VS)... The pattern composed of RHA, WC, and WRL in the absence of VS has been demonstrated to be 100% specific for pyogenic granulomas in one study... To conclude, PG is a benign tumor rarely affecting scalp and hence can be confused with various benign and malignant tumors of scalp and trichoscopy, although not a substitute for histology, can help in confirming the diagnosis.

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Erythematous nodule with lobulated surface
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Figure 1: Erythematous nodule with lobulated surface

Mentions: A 35-year-old male presented with a swelling over scalp since 1 year. Initially, it was about a pea size, which gradually progressed to attain the present size. There was no history of preceding trauma to the site. He complained of bleeding from the lesion while combing. Examination revealed a single, sessile, erythematous nodule measuring 1 × 1 cm with lobulated surface located over parietal region of scalp [Figure 1]. Systemic examination and blood investigation were unremarkable.


Pink nodule with a peculiar pattern on trichoscopy.

Ankad BS, Beergouder SL, Shaik MA - Int J Trichology (2013)

Erythematous nodule with lobulated surface
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3927179&req=5

Figure 1: Erythematous nodule with lobulated surface
Mentions: A 35-year-old male presented with a swelling over scalp since 1 year. Initially, it was about a pea size, which gradually progressed to attain the present size. There was no history of preceding trauma to the site. He complained of bleeding from the lesion while combing. Examination revealed a single, sessile, erythematous nodule measuring 1 × 1 cm with lobulated surface located over parietal region of scalp [Figure 1]. Systemic examination and blood investigation were unremarkable.

View Article: PubMed Central - PubMed

Affiliation: Department of Dermatology, Siddavanahalli Nijalingappa Medical College, Navanagar, Bagalkot - 587 102, Karnataka, India. E-mail: drbsankad@gmail.com.

AUTOMATICALLY GENERATED EXCERPT
Please rate it.

Examination revealed a single, sessile, erythematous nodule measuring 1 × 1 cm with lobulated surface located over parietal region of scalp [Figure 1]... Various trichoscopy patterns have been studied, which help in diagnosis of hair disease and nontumoral scalp disorders... However, there is paucity of trichoscopy studies in benign and malignant tumors of scalp... It presents as a solitary, rapidly growing, papule or polyp that bleeds easily after minor trauma... It is very important to confirm the diagnosis by microscopy... Dermoscopy can aide in preoperative diagnosis of this benign tumor... Seven exclusive patterns were made up from the combination of the structures observed like ‘reddish homogeneous area’ (RHA) histologically corresponding to presence of numerous small capillaries or proliferating vessels, ‘white collarette’ (WC) corresponds to the hyperplastic adnexal epithelium that partially or totally embraces the lesion at the periphery, ‘white rail lines’ (WRL) correspond histologically to the fibrous septa that surround the capillary tufts and ‘vascular structures’ (VS)... The pattern composed of RHA, WC, and WRL in the absence of VS has been demonstrated to be 100% specific for pyogenic granulomas in one study... To conclude, PG is a benign tumor rarely affecting scalp and hence can be confused with various benign and malignant tumors of scalp and trichoscopy, although not a substitute for histology, can help in confirming the diagnosis.

No MeSH data available.


Related in: MedlinePlus