Clinical Dermatology Review

CASE REPORT
Year
: 2021  |  Volume : 5  |  Issue : 2  |  Page : 240--241

Multiple itchy nodules over the scalp – clinicopathological challenge


Aditi Dhanta, Gargi Taneja, Neirita Hazarika, Michael Leonald Anthony 
 Department of Dermatology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India

Correspondence Address:
Aditi Dhanta
Department of Dermatology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand
India

Abstract

Angiolymphoid hyperplasia with eosinophilia is an uncommon benign vascular proliferation with histologically distinct endothelial cells and a mixed inflammatory infiltrate composed of mainly lymphocytes and eosinophils unknown. It commonly affects middle-aged adults and characterized by flesh/plum-colored pruritic nodules and papules. In our case, it has to be differentiated from other appendageal tumors such as cylindroma, spiradenoma because of similar site involvement. The histopathological examination is a fundamental tool to achieve a correct diagnosis.



How to cite this article:
Dhanta A, Taneja G, Hazarika N, Anthony ML. Multiple itchy nodules over the scalp – clinicopathological challenge.Clin Dermatol Rev 2021;5:240-241


How to cite this URL:
Dhanta A, Taneja G, Hazarika N, Anthony ML. Multiple itchy nodules over the scalp – clinicopathological challenge. Clin Dermatol Rev [serial online] 2021 [cited 2022 May 22 ];5:240-241
Available from: https://www.cdriadvlkn.org/text.asp?2021/5/2/240/324578


Full Text



 Introduction



Angiolymphoid hyperplasia with eosinophilia (ALHE) is an uncommon benign vascular neoplasm of debated etiology. It commonly occurs on the head and neck, especially at ear and periauricular area, and has a tendency to recur after excision. It usually manifests as solitary or multiple erythematous to brownish papules or nodules. We describe here a distinctive case with regard to the location and gross appearance of the tumor.

 Case Report



A 40-year-old female presented with multiple itchy reddish nodules on her right side of the scalp, gradually increasing in number and size over a period of 6 months. There was no history of preceding trauma or surgery at the site. There was no history of bleeding, but the patient complained of severe pruritus in the lesions. Cutaneous examination revealed multiple firms, nontender, well-defined erythematous to skin-colored papules, and nodules of varying size 0.5 cm × 0.5 cm to 1.5 cm × 1.5 cm in diameter, present discrete or in groups in the right side of the occipital and parietal region of the scalp [Figure 1]a. Few nodules were surmounted by erosions and crusting [Figure 1]b. There was no regional lymphadenopathy and the rest of the systemic examination was normal.{Figure 1}

Routine laboratory investigations including a complete hemogram, hepatic profile, renal profile, and immunoglobulin E (IgE) levels were done. Eosinophilia of 18% was notable while other parameters were within normal limits. A 4-mm punch biopsy was taken from the nodule for histopathological evaluation. Microscopy revealed multiple well-defined collections of inflammatory infiltrate composed of lymphocytes and eosinophils with dilated vascular channels present in the upper, mid, and lower dermis with multiple pilosebaceous units. The vascular channels lined by plump, partly vacuolated endothelial cells. They are epitheloid in appearance and protrude into the vessels lumen with a hobnail-like appearance [Figure 2]a, [Figure 2]b, [Figure 2]c. Based on the characteristic histopathological features, a diagnosis of ALHE was established.{Figure 2}

 Discussion



The term ALHE was first described by Wells and Whimster in 1969.[1] The exact etiopathogenesis of ALHE is unknown, however, various hypotheses have been proposed, including environmental factors such as insect bite or parasites, trauma, hyperestrogenic state, and immunological mechanism. Some authors suggested it may be a reactive process or a neoplastic process; however, none have proven to be conclusive or definitive.[2] ALHE occurs in the third to fourth decade of life, with a female preponderance. It present as an erythematous or skin-colored dome-shaped dermal papules or nodules on the head and neck, especially on the ears and periauricular region. It is often associated with spontaneous bleeding, pain, and pruritus. Eosinophilia is evident in only 20% of ALHE cases and elevated IgE levels and regional lymphadenopathy is a rare finding.[3]

Its main differential diagnosis is kimura's disease but a variety of vascular tumors such as angiomatous lymphoid hamartoma, hemangioma, pyogenic granuloma, kaposi sarcoma, lymphoma, angiosarcoma, and epithelioid hemangioendothelioma may resemble clinically to ALHE.[4] ALHE should be differentiated from Kimura's disease which is characterized by a triad of subcutaneous masses in the head-and-neck region, peripheral eosinophilia, and elevated serum IgE levels while histopathology shows follicular hyperplasia, reactive germinal centers, and the presence of eosinophilic infiltrates in the interfollicular areas.[5] Furthermore, the presence of lymphadenopathy points more toward Kimura's disease.[5]

The confirmation of the diagnosis is made by histopathology. Characteristic histopathological features are the presence of epithelioid endothelial cells lining the vascular wall and projecting inside the vascular lumen giving a “cobblestone” appearance. These cells have large nuclei and abundant eosinophilic cytoplasm. A perivascular inflammatory cell infiltrate composed mainly of lymphocytes, and eosinophils are second defining characteristic of ALHE.[6]

ALHE is a benign disease but can be resistant to multiple therapies, and can become disfiguring to the patient. Surgical excision is the treatment of choice and when completely excised, it rarely recurs. One-third of cases recur after incomplete excision. Other treatment modalities used to treat ALHE with variable response, including intralesional corticosteroids, cryosurgery, electrodesiccation, topical tacrolimus, interferon alfa-2a, topical imiquimod, pentoxyphilline, and oral retinoids.[4]

Declaration of patient consent

The authors certify that they have obtained all appropriate patient consent forms. In the form the patient(s) has/have given his/her/their consent for his/her/their images and other clinical information to be reported in the journal. The patients understand that their names and initials will not be published and due efforts will be made to conceal their identity, but anonymity cannot be guaranteed.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.

References

1Wells GC, Whimster IW. Subcutaneous angiolymphoid hyperplasia with eosinophilia. Br J Dermatol 1969;81:1-14.
2Shenefelt PD, Rinker M, Caradonna S. A case of angiolymphoid hyperplasia with eosinophilia treated with intralesional interferon alfa-2a. Arch Dermatol 2000;136:837-9.
3Kempf W, Haeffner AC, Zepter K, Sander CA, Flaig MJ, Mueller B, et al. Angiolymphoid hyperplasia with eosinophilia: Evidence for a T-cell lymphoproliferative origin. Hum Pathol 2002;33:1023-9.
4Guo R, Gavino AC. Angiolymphoid hyperplasia with eosinophilia. Arch Pathol Lab Med 2015;139:683-6.
5Reddy PK, Prasad AL, Sumathy TK, Shivaswamy KN, Ranganathan C. An overlap of angiolymphoid hyperplasia with eosinophilia and Kimura's disease: Successful treatment of skin lesions with cryotherapy. Indian J Dermatol 2015;60:216.
6Adler BL, Krausz AE, Minuti A, Silverberg JI, Lev-Tov H. Epidemiology and treatment of angiolymphoid hyperplasia with eosinophilia (ALHE): A systematic review. J Am Acad Dermatol 2016;74:506-12.e11.