resulted the following: positive CD30, CD43, Ki-67
on 80% of the atypical cells, and negative CD20,
CD3, ALK, CD1a, CD15, PAX-5, and AE1/AE3
(Figure 2). These findings came to a conclusion of
non-Hodgkin lymphoma, ALK-negative ALCL.
3 DISCUSSION
Anaplastic large cell lymphoma is an uncommon
disease which comprises a number of heteregenous
conditions. The disease usually arises in lymph nodes
where these tumors morphologically resemble
histiocytic lymphoma. Lymphonodal ALCL is an
aggresive lymphoma with rapid extranodal spread
and poor prognosis and skin involvement estimated
occurs in 15% of cases. The clinical spectrum of
primary C-ALCL includes plaques, nodules, and
ulcerated tumours and inflammatory lesions.
The patient reported here had an unusual clinical
course with a 1-year prodrome of non-specific
erythroderma preceded by reddish, pruritic scaly
patch on both thighs two years before. Most cases of
primary C-ALCL arise in normal skin, though pre-
existing mycosis fungoides is well recognized. At
first we diagnosed the patient with MF because florid
erythroderma with marked ectropion clinically
suggestive of MF/SS, however, we still underwent
further investigations for confirmation of diagnosis
since a painful, ulcerated nodule appeared on his right
axilla.
Two biopsies were performed during the course
of the erythrodermic phase of the illness. The one
from the right arm showed a hyperkeratotic
epidermis, half parakeratotic, spongiotic psoriasiform
hyperplasia, exocytosis of lymphocytes, and basal
cells vacuolisation. Lymphoid inflammatory cells
were accumulated at dermal papila. At superficial
part of the dermis there were sparse infiltrate of
lymphocytes. These features concluded as a drug
eruption. Histological examination from the right
axilla nodule showed infiltration of the dermis by
atypical cells which were arranged in strands and
sheets, rough chromatin, noted pleomorphic, and
eosinophilic cytoplasm. Epidermis part were
hyperkeratotic, parakeratotic, achantotic with
granulated tissue. Reed-Sternberg cells were also
found. Mitotic cells easily found. These concluded as
a mixed cellularity Hodgkin lymphoma. We cannot
concluded drug eruption as the diagnosis since it did
not match with the patient's history and clinical
features. A result of Hodgkin lymphoma was
sometimes deceiving as it could also mimicking non-
Hodgkin lymphoma. Thus an immunohistochemistry
assay is needed to confirm the diagnosis.
Immunohistochemistry assay of this patient
showed positive findings of CD30, CD43, and Ki-67
at about 80% of the anaplastic cells. CD20, CD3,
ALK, CD1a, CD15, PAX-5, AE1/AE3 were negative.
A positive CD30 and negative ALK strongly suggest
that this patient suffer from ALCL, ALK-negative
type. Based on one study, the frequency of CD3 in
ALK-negative ALCL was 50%. Another study
showed expression of CD15 is aberrant, and a
negative CD20 and PAX-5 indicated a NHL. Thus we
concluded this patient is still well-accepted in an
ALCL ALK-negative spectrum, regarding negative
results of CD3, CD20, and PAX-5.
4 CONCLUSIONS
We report a very rare case of erythroderma originated
from C-ALCL. It is very challenging for us to
establish a diagnosis regarding confusing relation of
history, clinical, histopathologic, and
immunohistochemistry findings of the disease,
including a Hodgkin disease-mimicking feature of
NHL and various immunohistochemistry assay
results. ALCL itself is already a rare case in a
population and an erythroderma with a painful,
ulcerated nodule make it more laborious for
dermatologists and pathologists to establish a
diagnosis. This unusual case both expands the
spectrum of cutaneous disease associated with
erythrodermic ALCL and highlight the importance of
early biopsy and immunochemistry in patients with
erythroderma presentation.
REFERENCES
Bolognia, JL., Jorizzo, JL., Schaffer, JV., 2012.
Dermatology. 3rd ed. China: Elsevier. Chapter 10,
Erythroderma; p. 171-82
Denton, K., Wilson, C. L., & Venning, V. A., 1992.
Primary cutaneous anaplastic large‐cell
lymphoma with a prolonged erythrodermic
prodrome. British Journal of Dermatology, 126(3),
pp. 297-300.
Foss, F., 2013. T-cell lymphomas. New York: Humana
Press. Chapter 2. Epidemiology and prognosis of T-cell
lymphoma; p. 25-40.
Foss, F., 2013. T-cell lymphomas. New York: Humana
Press. Chapter 5. Primary cutaneous and systemic
CD30
+
T-cell lymphoproliferative disorders; p. 71-86.
Muzzafar, T., Wei, E. X., Lin, P., Medeiros, L. J., &
Jorgensen, J. L., 2009. Flow cytometric
immunophenotyping of anaplastic large cell
lymphoma. Archives of pathology & laboratory
medicine, 133(1), pp. 49-56.
Pletneva, M. A., & Smith, L. B., 2014. Anaplastic large cell
lymphoma: features presenting diagnostic